$100/kwh Huge LiFePO4 Lithium Battery First Look
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- เผยแพร่เมื่อ 23 ส.ค. 2024
- $100/Kwh LiFePO4 Battery Modules
I bought 12 battery modules from Battery Hookup. Each module is 8s, I'll be connecting 2 in series to make a 48 volt battery bank for my off-grid solar system.
This is a first look at the battery. How the cells are arranged in the pack. They look like they were built to handle some serious amps.
I have not done a capacity test yet, but they will probably be around 4.5 kwh per module.
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You just got my respect for including Cm &Kg measurments for people whom watching and nither use Pounds nor use inchs
Thank you
Your welcome. Thanks for watching.
@@DavidPozEnergy I literally liked and subscribed your channel at 0:36 because I realised you do this.
You are a legend among american youtubers. Much love from down under
True, we are an international audience and the ONLY country to still use pounds is the US.
Mike Scudder our Imperial roots and all, not to mention free masons
I was just about to comment exactly that! Thanks!! No need to pause and Google "163 us pounds to kg" 😂👌🏼👍🏼👍🏼
Battery Hookup is my #1, favorite, trusted source for 18650(s) for over 2 years now. Many successful purchases - love these folks!
if you have an issue with any of your purchases ... how do you contact them??
@@websterbrauzer8373 phone or email I think
I know a warehouse in the Chicago area with loads of these. I just bought one, so thanks for this helpful video
Could you please help me connect with them to buy some batteries right here in this comment section or I could write you my email a phone number or some way to contact them
David, thanks for using kilograms as well for your viewers outside the US. That was a lot of weight!
Your welcome. Thanks for watching.
DavidPoz watching from U.K.
Wow, that's a lot of power. Looking forward to seeing the installation and testing!
Absolutely! I look forward to testing them.
Great overview! I'd grab some of these if I wasn't already heavily invested in 18650s :( LiFePO4 really are the way to go for long-term builds.
Thanks for checking out the video. 18650's are great too. Anything that helps us get more energy independent!
Thanks David I just purchased my bank of these. I have been dragging my feet on other choices but this appears to be a good deal.
love it buddy - good work
Thank you, means a lot coming from you.
Im a huge fan of both channels. Thanks for making such great videos!
Just bought 10 today! Thanks for the short video and looking forward to seeing you get these connected and fully tested. Awesome man!
Nice! When you get them up can you send me a picture? (maybe facebook) I'd love to see them.
DavidPoz will do! It’ll be next month or Jan... waiting for the Sol Ark 12k inverter to come in. It ships in December.
Awesome! I can't wait to see someone with the Sol-Ark 12k installed. That thing looks like perfect on paper. It checks every box on a wish list.
@@DavidPozEnergy Curious if you've found a way to capacity test these yet?
@@DavidPozEnergy So... after seeing a super awesome deal on the SMA Sunny Island($1500/ea) I couldn't turn that down. So, instead of the Sol-Ark, I went with the Sunny Island. I have 3 buildings that I'd like to eventually place panels, so this would make it really easy to AC couple them with Sunny boys back to the island. Thanks again for your work and impressive builds!
Amazing deal, good call buying that many. Those bus bars are super, the whole setup looks great, best deal I have seen even better then we got on the Ford Energi C-Max unit(s). We are right at 100 USD per kWh too but these look nicer overall.
Wow, nice score! (No wonder the things sold out so fast! You did good by jumping on that opportunity immediately!)
Just so ya know:
When equipment like this is installed in a data center, the fans face out the back of the rack. This is called the "hot aisle/cold aisle" layout. (I think you may have front and back swapped.)
Two rows of racks are arranged back-to-back, so all the hot air goes into the space between. The air-handling system can scavenge the hot air from the back of the machines and dump cold air to the front of the machines. The human operators mainly keep to the "cold aisle" in front of the machines where all the buttons and lights are. Wiring and connections are mostly in the "hot aisle" to keep them safe and tidy. (Not saying you have to run things this way -- you do you.)
Are you going to use equipment cabinets, or roll your own? Can't wait to see what you figure out with the BMS situation! More power!
Hi proto, Thanks for sharing with us how these would be installed. That's interesting. As for cables, I am planning to make my own. I could not figure out what these posts are called, or where to source the female version of them.
@@DavidPozEnergy I have an idea, you could use some sort of metal cable clamp on them, instead of cable you clamp onto the post. Then use the clamp mounting hole to attach the power cable, using a nut/bolt.
Wow!!! This stuff is getting really cheap now! Awesome!
Thanks for the hookup. I used your link and purchased 2 of these
Thanks!
Thanks for using the link. Are you planning a 48v setup?
@@DavidPozEnergy yes. I want to add these to the battery bank I currently have. I have 16 Sol-Ark 12volt PCC's in 4 strings for total 920ah. I have never had to wire up a BMS. Which one do you plan on using for these?
I took a look at your system. The Sol-Ark looks like an amazing machine. It seems like it can do everything. I'm surprised you didn't buy more of the Sol-Ark batteries, I think they are AGM, right? As for my BMS, I think I will try the Chargery 16s BMS.
@@DavidPozEnergy Not that I didn't think about the Sol-Ark batteries but they were $700 each they are partial charge carbon. The hookup ones were a much better deal. Just have to work out the BMS for them. They will be added in parallel to the Sol-Ark ones. The Sol-Ark system is very flexible, they just came out with a 12Kw unit.
That poor, poor van. 5 and a half hours back with that load had to have been brutal on the suspension! We bought a few to test and use in an upcoming system using the link. Can't wait to see future videos on these beasts!
Yes, I felt really bad for my van. I didn't know how much they weighed when I went down there. I had done a back of napkin calc assuming 120 pounds each. LOL. That would have been right on the edge of my payload. I was wrong. Thanks for using the link. I just found out about the affiliate program yesterday, after I already bought the batteries.
David: I have watched your video from the time you built the crawlspace heat battery to now these. Love it. You may want to do a one KW solar with one of these or similar battery that folks could just build themselves and put a part of their house on UPS/Solar on the cheap!
A very good deal, thank you for sharing. Granted they're a different chemistry, but the power density of Tesla modules is just awesome (and getting better!)
HOWdy D-P,
Thanks for this VINTAGE Video
COOP
...
I just bought 6 and got 5% off by getting on their email list. Wife is gonna kill me Dave! I’m gonna augment the set of 800ah lifepo4 in the Philippines later with these. Meantime I will hook up my massive 15kw powerjack to my current house as grid tie and let the grid charge these and see if there is any difference in the light bill with the inverter efficiency mods when on battery power for 12 hours a day. May put up the windmill later. Had planned on topping out a very tall pine tree and putting it up there but the tallest snorkel lift wouldn’t reach so a tree service said their crane could help me out. Heat sinks and fan seems excessive considering my brand new batts never heat up even 1 degree charging or even when discharging a 4.2kw event shower heater, rice cooker, electric vehicles and Hvac all at once. Cheap Chinese lifepo4 batts at that. The more time go by the more charging cycles folks suspect lifepo4 batts are capable of. I think the number of cycles they publish are just being conservative. They could be in excess of 10,000 cycles if your sensible with them. If you run them dead dead for 2000 cycles then that’s probably end game tho.
That's great. I saw your other comments. What are you planning for BMS wires? Will you run your own direct to the cells?
DavidPoz I like the wire setup they come with but i have a box of 18awg color variety I bought on eBay or amazon 100 ft each roll that would make cell ID easy enough. How many S Chargery bms were you looking for? Mine is 16s good for 48v setup.
My respect and admiration.
I'd love 6 of these for a van build. Looking forward to more videos on these from you. Subbed.
Thanks for subscribing. I have several videos planned for them.
They just got more in stock: batteryhookup.com/collections/frontpage/products/byd-24v-lifepo4-4-4-5-kwh-battery-modules-rv-powerwall?rfsn=3333666.ca06e9
six? they are heavy beasties! your mpg is gonna go down ;)
I will admit this is a really good unit. And at $450 ya really can't beat that.
👍 greetings from Germany.
Μπράβο φίλε Ντέιβιντ ο Καλός Θεός να Δίνει Όλα Τα Καλά Του σε εσένα την οικογένεια σου και τους καλούς σου φίλους..... ΜΠΡΆΒΟ ΠΑΛΙΚΆΡΙΑ ΜΟΥ
These modules look so cool. Won't be a bad idea getting some for my 24v system.
They just got more in stock: batteryhookup.com/collections/frontpage/products/byd-24v-lifepo4-4-4-5-kwh-battery-modules-rv-powerwall?rfsn=3333666.ca06e9
@@DavidPozEnergy Anyway to get a message to Ryan to please hold 2 more units for me to add to my pallet before shipping Monday? I just tried to add 2 more but the site isn't accepting my coupon code and doesn't have the option to subtract the shipping.
Hi abusiveben, I don't know how to get a hold of Ryan after hours. Tom is the owner and he is active on Facebook. Try sending him a message there: facebook.com/batteryhookup/
DavidPoz So is it 100$ per modules when you brought it’s. Am I reading it correctly? On the website is say 450$.
Add a boost regulator and one has a power bank for a phone.
I would LOVE to be able to buy 54kWh of battery! I hope these last a while, or that other similar units are available when the time comes.
These units are 4.5kWh each now, originally rated at 5.4kWh
@@BenMitro in renewable energy, we dont express battery capacity in Kwh...because wattage goes down as voltage goes down....however you can have a constant amperage draw till your batteries are drained....thats why
@@t00ls742 kind of. Except that amperage goes up as voltage goes down because your load is a constant wattage draw. These modules are originally listed as 5.4-5.65 KWh. There is nothing wrong with describing a battery in KWh capacity.
I just bought some lifepo4 batteries built into a power station and they are awesome. its 4 kwh of battery and 4000 watts continuous 110 vac power for backup power when the power shuts off.. it ran a air compressor intermittently for 3 or 4 hours when we were installing siding... so far it performed as expected..
I learn a lot from your videos, thanks!
Thank you too for the video
YOU BOUGHT THEM ALL!
They just got more in stock: batteryhookup.com/collections/frontpage/products/byd-24v-lifepo4-4-4-5-kwh-battery-modules-rv-powerwall?rfsn=3333666.ca06e9
What are these batteries out of? How have they been performing?
I also got one of these battery modules and will be watching you for advise on a proper BMS for these. I really hope you will go into detail so i can follow along.
Will do. Thanks for watching the videos.
@@DavidPozEnergy i too would like to see your detailed video on bms
Good Video! Now I know why I could not buy any of those packs 3 hours after I got the notice from Battery Hookup! You got them all ... :)
Their website says they are getting another shipment in 2 weeks. Sorry you missed out on this one.
@@DavidPozEnergy Thats fine! :) I was kidding and poking at you at the same time! I liked your video!
Thanks for watching.
They just got more in stock: batteryhookup.com/collections/frontpage/products/byd-24v-lifepo4-4-4-5-kwh-battery-modules-rv-powerwall?rfsn=3333666.ca06e9
4:33 I wouldn't call that a bus bar. I would call it a fixed jumper. Bus bars usually allow for multiple connections but that appears to just be a jumper from one subbank of cells to the next subbank.
Thanks.
@@DavidPozEnergy More than likely either the; electromagnetic radiation, caustic fumes, or perhaps accidental electrocution has affected David James in calling this a fixed jumper (sorry Dave).
As an EE, any device that carries a high current load would use a solid high conductive metal connection between electrical junctions such as these to connect between batteries.
This is called a 'Buss Bar' not a 'Fixed Jumper' which would allude to an EE that it is connected via an actual wire but because of the high amperage a solid core flat metal would be used as shown in this device. Where a (solid or stranded core wire) renders it a design flaw and electrical hazard due to the fact the electrical atoms (pos & neg) travel outside of a wire so available surface area is nominal that caused heat and over time failure of the connection itself.
One would have to have a very large wire gage to equal the Amp carrying capacity of a solid buss bar versus a fixed (wire) jumper. However, there are exceptions and those vary from manufacture to manufacture in naming these devices just to make it more confusing and the fact to save on production costs and increase profits use of wire for a buss bar is readily used in the industry - just a way of saving money for the company and not the end user.
It is common to see Buss Bar's being replaced with 'Jumper Wire' both stranded and solid core both in high end and low end consumer grade equipment. In industrial equipment you will see these 'Solid Metal Buss Bars'. Unfortunately, in this day and age increasing profits is the norm and what was once looked upon as ineffective or dangerous has now become acceptable design considerations with the risk they may impose by mitigating this risk with added fuses and other fail safe measures.
We see this all the time with new buzz words (in reality old words) to make it sound like the newest high tech solution and thanks to the marketing department of the company, justify its design inefficiency to the user. This becomes apparent when reading the products data sheet and/or lack of proper information in the data sheet.
Best advice I can give you is check your connections are they the best way to connect this device? Are they solid mechanically? Wear and tear possibility? Corrosion? Safe? Is this the best way to make this type of connection?
Remember the path to least resistance for failure is you connections.
Be safe, do it the right way and with quality equipment... Happy Energizing!
Nicholas
"Wicked cool."
He did say he's in Bahston
I was thinking about getting these, bit went with Leafs. Nice find brother.
Are leaf batter good for backup power wall? I heard they degrade fast
@@jollygreen4662 I hope not, but I just got mine a few weeks ago. I wish I would have waited to see this deal. If you oversize it, you can use like 15%-20% of you capacity so it will last longer. I just cooked, dried clothes and turned the water heater on with 81% battery left for the rest of the night. Definitely oversize as much as possible.
I agree with over-sizing. The batteries will last longer. It's just the cost. I'd love 100kwh, but just the cost gets too much. We do what we can.
@@DavidPozEnergy buy 1 per month for the next 12 months, lol. But I completely understand that, I'm on that very same road.
Hi Dave thanks for sharing maybe I missed it but what are you going to use them for. Also what's the going price for them?
I just purchased 20 of these from Battery Hookup, but I think I forgot to use your referral code, I did mention your name when I called them, I know how commission works, if they give you any issues, I will be happy to contact them on your Behalf. Thank you for your great video's
Thank you for mentioning me. I'm sure it will all work out. I bought the batteries on my own and didn't even know there was an affiliate program. I was going to make videos about them anyways. The owner (Tom) suggested I get into the affiliate program.
@@DavidPozEnergy You are welcome, They told me shipping is 350 for as many as I buy, so 20 cost me same as one. Plus I got 10% off. How much was your gas plus time, I live in Portland Oregon and I am pretty sure my Prius is not up for the task.
20 is going to be one heck of a big system. I spent $130 on gas and tolls. But who knows how much damage I did to my shocks. I might have to replace them soon. LOL
@@DavidPozEnergy Yes, I generally have Les Schwab do a free inspection, because it is a safety issue. They will tell you if something bent or failed. I consume 50 kwh a day, so 2 days worth of power. This includes all electric heatpump HVAC, Heat pump water heater, led lights inside out, security systems, I tested enphase micro inverters for grid tie setup as majority of people, but I think offgrid system are superior. Your inverter setup is good, but as you mentioned you are planning to upgrade to better efficiency inverter, I would recommend trace sw4024 or SW4048 with 93 or 94 percent efficiency. They can be connected together to give you 8kw of 240v setup. You just have to search on craigslist. I only paid 600 each so 1200 for 2 of those.
@@wasifsyed1085 I am hoping to do a similar project to yours with a small garage with an apartment above. It's about 840 square feet total and it will be heated with mini splits. How big is the building that your are using 50kwh to power and heat?
Heck. I'm jealous of the us market.
Next time. Get a trailer. :)
Fully agree, I payed £250 for 8x60AH used Sinopoly cells a couple of months ago
just looked and the guy has increased the price to £350 plus shipping :o
100.00 per kWh?!?!?!?!?! I need 4, 6 prefer, for my future home!!!
Big fan to Poz: "I'm a big fan!"
Sigh! Wish these were available in the UK!!
....thinking out loud, if you paralleled those with your Chevy Volt battery, you could charge to 49.2 V (4.1V per cell for the Volt) and your LiFePO4 would be at 3.075 ---- then discharge the Volt to 42 V (3.5V per cell) which would put the LiFePo4 at 2.625 Should work out just fine :-)
Sorry to disappoint Mark, but I had to sell the Volt pack to help pay for these.
Hey man I'm considering grabbing some of these, but the affiliate link in the description is down!
EDIT: just saw the new link in your pinned comment nvm
You should have more then 3 days of stored energy,,, yes? Since we went off grid (south Florida) we have learned how to use a fourth of the power we used to use and we still live fine, we are just more mindful about Everything now, so it has been a great experience, however, it was not easy.
Last I checked I was averaging 14kwh per day. I hope this tides me over. LOL
heya always nice to see how they are bilt inside you never know what you will find lol
Greetings from Marikina City, Philippines. Nice video
Nice! You're going to have fun with those!
(Note, the cell connected to the main negative terminal is always Cell 1, or should be)
I made a guess, 50/50 chance. Go figure I guessed wrong. LOL
Build your dreams 👏🏼🤓⚡
Thanks for sharing. Thats a smoking deal.
Those are awesome!
I wish I lived in an area that had this stuff. Everyone in my area hates batteries and they hate solar. They can't even tell me why they hate it. They just hate it. Silly. Eventually they will come around. When they find out it will save them money.
Aaron What general part of the country are you located, Florida doesn't want you to have it , and California almost mandates it, here in the Midwest seems like they don't care one way or the other.
@Michael PacNW I have friends making money putting more into the grid than they need. Not every situation is the same. Most I know break even but will be in the green after paying off their panels
I must say You Like Your Batteries don't you Dave 🤣👏👍
Power To The People is a different meaning at your Home Dave.
Philip from Cheshire 🇬🇧
I think your ready to power your town !
I do like that company for its Batteries, just wonder on transport to 🇬🇧
Awesome find! I am located in VA so I will be considering picking a few up. Do you know if they have plenty in stock or is it at risk of selling out? Anyways good job on the haul! You probably should have rented a trailer or a uhaul :)
Yes I should have rented something. As for stock, I think these will sell out fast. I didn't see a lot when I was there.
So you bought them all!! I went to check them out, they was GONE!!
They had a truck load worth, crazy they sold out already. But they are a great deal. Sorry you missed out. On their website they said they are going to get another truckload in 2 weeks.
They "were" GONE!!
Be willing to let you know that your rear bearings are brenelled for sure. Just so you know and peace too.
Victory First He for sure didn't do them any favors , do the minivans make audible noise like cars ???
Late to the party I guess. Just bought some of the BYD packs from the bottom of the barrel. Each has a bad cell, listed that way from battery hookup. I've watched a number of people take them apart and rebuild them. That was my intent here for these 4 packs I bought.
That's cool. I'm going to be taking mine down this summer and testing them. I have a self-discharging cell in there somewhere.
@@DavidPozEnergy I used your code, so thanks for the hookup.
I will try to video my tear down and rebuild, but I don't have the camera or audio gear to do professional work. I will post the project on my channel.
Wow man awesome. I spent $1,000 for 100Ah, and yeah they were new but what a deal.
Thanks. What was your cost in kwh?
DavidPoz $417, with box and BMS, to my door. $1,001 for a 24v 100Ah. And I’m in Pa so I will he making a trip up there at some point.
You lucky guy!!!!
Seeing that battery.made me drool.
LOL
@@DavidPozEnergy I will die to get few of those batteries for my inverter. Still iam DROOLING obout that battery
Nice! Did you go to Bensalem PA? I picked up at that facility before, good guys!
Yes, same place. I said Philly because it's just easier for the video.
@@DavidPozEnergy Did you have to make special arrangements to pick them up in Bensalem? Their website says no local pickup :-(
That's a deal killer for me because I'm just a few hours away in central PA. No way I'm going to pay $300 shipping when I'm that close.
curious about the bms... what country are you in? if you do not use them i'll have a look at one to see how it communicates and do a little bit of reverse engeneering on them...
Hey David I'm new on your channel and I'm already hooked. You mentioned about putting two of those units in series, (for 48v nominal) would you be able to use the same 2- BMS's in series or would you have to change to One 16 or 17s BMS??
Hi Salvador, thanks for checking out my channel. I don't recommend these batteries. They turned out to be more of a nuisance. I spent a lot of time trying to get them to work perfect, but constantly required my time to balance. I have taken these cells out of service.
If you are trying to build your own, I'd use better cells. Use a 16s BMS, with LiFePO4 cells. That means 16 cells in series, and the exact chemistry of the battery is Lithium Iron Phosphate.
This is a great way to make your first battery: batteryhookup.com/products/new-battery-hookup-lifep04-32650-3-2v-5000mah-cells-1 This kit comes with 4 cell modules. You would need 4 kits to have 16 cell modules total. Those arranged in series would give you 16s, for a perfect 48V battery. Then you need to add a 16s BMS. Battery hookup is currently sold out, so try this one: overkillsolar.com/product/bms-100a-16s-lifepo4/
I have a coupon code with Battery Hookup: DAVIDPOZ which gets you 5% off, and helps out the channel through affiliate program.
No More War.
เราชอบดูรายการของคุณ เสียดายประเทศไทยของเราหาวัตถุดิบแบบคุณไม่ได้
Whoa, are you going to power your whole block?!? lol How many Whr do you have now between all of these and the car batteries?
LOL, no, not the block. I sold the Chevy Volt battery to buy these, and 4 of these modules are going to a buddy. The 8 that I'm keeping should be around 35 kwh of capacity, which should about double what I had with the Volt battery.
I’m Trying To Make A Power Wall for My Off Grid System
I want 2 of those heatsinks :P
thankyou for video
I have 4 Kilovault LiFePO4 12v batteries that only weigh about 40 lb each vs 80 lb for equivalent lead acid. But, the batteries need to be at an equal initial voltage or they shut down. I got them to work for several weeks then the system shut down. I checked the voltages. One was way negative of the others. Charged them up again with battery charger. Turned on my little electric heater. Not long after they screwed up again. Then Iater I tried charging my hybrid car which was showing it was only drawing 1k watts on the solar system monitor. The batteries did the same thing again. I'm using an Outback Mate3 and the 3 lights at the top have never shown the batteries were even half discharged. I think I've developed a better way to check the batteries for equal charge. The mate3 says my charge controller and inverter are working OK.
I'd love to hear more about the Kilovault. Are you on Facebook?
@@DavidPozEnergy I actually did fully charge the car off my solar system. It just shutdown several days later. The charger for my car says theirs a fault in the cord I used to initially charge the solar batteries. Next time I charge them I'll use my new cord plugged directly into the wall socket. What do u want me to tell u about the Kilovault batteries. They say they have their own BMS sensors and not to use a separate temperature sensor.
No, I'm not on FB. They stop me at the door when they want u to sign in just to look at their site.
it would be nice if you can do a striped down just the cells weight
Looks like a Delta fan.
$100/kWh is a good deal. Battleborn is stealing peoples money selling 100Ah batteries for over $1k with 18650 cells glued in a box. Awesome find!
Don't you need that bms to manage charge level between the cells? Most of these types of batteries i've read about don't need any program written to do that.
David, do you know for certain that these modules are LiFePO4? I ask because the label (sticker) on the battery reads 'Li-ion". This question was asked in several places/forums but as far as I know, it was never answered. I know of at least 3 people (one of them being myself) that posed this question directly to Battery Hookup but they never answered it...
Hi Marko, Thanks for your question. I agree that it's confusing. I've read through several BYD documents. This is a LIFePO4 battery. It seems BYD is using "Li-ion" as a broader term for the lithium family rather than a specific chemistry.
So how hard would it be to do a DIY power wall? I currently have a 10kw solar system and I'd love to have a power wall to run my home when the sun goes down. I was looking at the Tesla power walls but they're way too damn expensive for my budget. Obviously these batteries would be used to power an inverter but that's all I know. I wouldn't know what type of inverter to use or what I'd use to charge the batteries.
I'm planning to use these batteries to power my whole house. I'm going to pair them with solar, inverter, charge controller, etc. Actually, I've been powering my house off-grid most of this year. Up until now I've been using Chevy Volt batteries. Now I'm going to double or triple my storage capacity with the new batteries. If you want to see my whole system check out this video: th-cam.com/video/722GNWlEN1g/w-d-xo.html Another resource I suggest is from Alt-E. They are a store that sells solar components, or full systems. They help you design your systems too. But they also have a series of design videos that get down into the details. I really like the videos. www.altestore.com/video/
Their website says no local pickup in PA. That must have changed since you picked yours up a few months ago. That sucks. No way I'm paying $300 shipping when I'm also in PA just a few hours away.
If you can get in touch with them, they might have a few that they did testing on or something. Alternative, they sell those cool Nissan Leaf batteries (full out of the car). Those weren't available when I bought these, but would be what I'd try next. You can use my coupon code "davidpoz" for 10% off anything.
@@DavidPozEnergy Thanks David. I'll give them a call tomorrow. I'd probably avoid the Leaf batteries. They are lithium-manganese-oxide which have a very short cycle life as far as lithium batteries go. They are only rated for 400-600 cycles when new, and those are pretty well used up. They'd probably go downhill quickly. I suspect these LiFePO4 batteries have 1000 - 2000 cycles left in them before they become unusable. Seems like a better deal to me.
EDIT: Just noticed a few comments about bad modules and some very weak cells. Maybe I'll steer clear of all of these used BYD packs and just go with building my own from new Liitokala cells.
Post video on a Friday. See video on Saturday morning, excited and clicks on the link and batteries are sold out 😭😭😭
They just got more in stock: batteryhookup.com/collections/frontpage/products/byd-24v-lifepo4-4-4-5-kwh-battery-modules-rv-powerwall?rfsn=3333666.ca06e9
Thanks yep. I ordered my 2 today. Thanks
Dear Mentor DavidPoz
I bought the BYD batteries, shipped to Somalia and lit a small village with 30kwh solar plant.
I recently bought another 100 kw batteries from China.
Can you please help find batteries capacity monitor.
Secondly, I don’t know how many batteries I can connect together. I mean is it bad for the inverters.
I use 9 5kw inverters set in parallel.
I wish to show you the pictures but couldn’t attach.
Thank you for your useful postings.
My favorite meter for measuring SOC (state of charge) is the Victron Smart Shunt. I'm running one on my battery bank. www.victronenergy.com/battery-monitors/smart-battery-shunt If you are on Facebook, then I suggest joining the group DIY POWERWALLS I'm on there, and it's filled with helpful people. And you can attach photo's.
Hello David, nice video. Are you going to post a video on DIY to install a external BMS on these? Thanks!!
Yes. I will be mounting an aftermarket BMS on the pack. The eventual goal will be installing shunt-trip breakers so the BMS can open the circuit to the battery. Plenty more videos to come.
OK question. if those are 8s for 24 volts and one of your other videos it showed 14s for 48 volt system. So will not 2 of these in series not be good for a 48 volt solar system. Since then they would be 16 s. been watching your videos. And I want to upgrade my battery system. I have a 4kw inverter and I like to have a 100wh battery bank. I have been thinking about LIFePO or similar for my new bank. My old bank was only 250 AH about 5kw if I didn't discharge them at 100 percent. I never discharged them below 70 percent. I just want a much better bank that will last a lot longer than my Lead acid. So been doing some research and watching. and wanting the best bang for the buck.
Depends on chemistry. The ones in this video are LiFePO4 and 16s makes a good 48v. But in some of my other videos I use Li-NMC and they want 14s for 48v. I clear this up in a video: th-cam.com/video/CbHABrTpSKU/w-d-xo.html
Wait. When did the bayyeries got so freaking cheap??? I calculated ai would like to have around 10 to 15 kWh backup, with these bad boys I can build it for 1.5k USD??? That's crazy. Off-grid dream comes true for a lot cheaper.
They seem to ship over sea! Although its $1000 if i buy 4! Kinda seems worth the price still.
Lysol ! Look into Alibaba.com Hunan Auk Energy Co. Bruce Wong. Same cost for new in your situation. I opened an account and you don’t have to be a company to purchase there. I purchased 32 lifepo4 200ah at $110 each $800 shipping to Philippines + customs + $100 ups contractor bogus “customs storage fee” which ups refunded and fined the contractor. Yay! Anyway they accept PayPal in most cases. Dave should start buying and selling this way. 150ah batts are the cheapest because they are most popular.
I just saw the batteries on another site. I am also in Massachusetts. I am ordering two or three myself. Glad to hear there is someone close by. Do you offer service? My father also wants a system installed in his house in Plymouth.
Hi Roy, I don't do service anymore. But let me check in with a friend who does and see if he is willing to let me give out his number. Please send me a private message on Facebook. facebook.com/DavidPozEnergy/
Makes you wonder what the Tesla battery pack is going to look like since they're supposed to be skipping modules and going cell to pack
I've been leaning going with tesla modules or getting batteries direct out of China. But this is the best beal I have seen. Just the weight is excessive.
Do you think pulling the heat sinks off would reduce the weight by any significance or is there any reason to leave them on?
Can't imagine you really need them unless you discharge them at some crazy high rate. Like the liquid cooling on tesla modules.
Could you strip them down to just the batteries?
It looks like the heat sinks are attached with 4 screws, so it should not be hard to remove. But it probably only saves you 1% of the weight. The cells are really big and heavy. If you are building something for a mobile application, like a van build, then save the weight and go with something else.
Looks like a nice pack! And dang your poor van :D
Yes. I have to kill my van before I can justify buying a pickup. LOL
@@DavidPozEnergy I like your thinking!
Wow!!! How do you charge them? How long does it tKe?
I'll be charging them with solar. I have some panels if you check through some of my videos you will see them, but here is an overview of my system (soon to be changed up) th-cam.com/video/722GNWlEN1g/w-d-xo.html Thanks for watching.
Driving there is probably the way to do it if you can I saw for 1 the shipping said $350 I dont know how that would change with several but does not matter right now they are sold out
I think the shipping is a fixed cost of $350 if you buy 1 or more. Good luck grabbing them next time they get a shipment.
You should use a BMS with any lithium batteries to keep from over amp in or getting too hot or too cold and for safety.
I still plan to use a BMS. I simply don't know how to write a computer code for whatever language the built-in BMS might use. I'll be installing an external BMS.
According to a spec sheet I found, if we can get a one of the master BMU units, it should talk native CAN bus to a Victron GX module. (Color control or Venus, or similar)
David, can you post any model numbers you can find off the unit? I'll do some googling around. (I already placed an email order for 3 for my Skoolie and hopefully can go pick them up from Besalem next weekend.)
The battery is Model: ABSSM. I have e-mailed BYD, and sent them a message through facebook. No response on either. I was trying to get a spec sheet for the cells. Specifically I wanted to find out voltage for 95%SOC and voltage for 20%SOC. So that I can program my charge controller and inverter.
Keep us in the loop. :)
Nice score!! Was there some sort of filter that fit over the intake? Those heat sinks are too clean if there was constant or near constant airflow.
There was no additional filter. I have the impression that these sat in an UPS system and were normally not used. Just in a power outage they would kick on and the fan would blow.
@@DavidPozEnergy Even better score!!!
one bldc ebike motor one 350 amps alternator one stacked casing containing one large gear and on small gear. then one very large transformer. now it has eight plugs per unit that runs on less then one 120 volts and 20 amps socket. the whole thing would fit in one case of those lithium ion batteries. just patenting it open source then dumping on wiki could make you really famous.
Geez thanks for the GREAT tip in cost reduction!.....One question, what do you think the life expectancy of these, in charge cycles, and after measuring the actual 'used' capacity (vs when new) would be if they get charged every-time they reach 20%? Or else, what are your expectations?
I have not done a full capacity test yet. My expectation is about 75% or 80% of original capacity. I'm hoping to have them in service for years, but I'll know more after some testing. I'll post the videos as I move along.
@@DavidPozEnergy Thanks!
I wonder how pricey these module's are
Battery Hookup is selling them for $450 per module.
I'll sell you one for a grand. Delivered!
What's the postage to Australia? :P
Try Ship Freight. BYD is from China.
if u get a dead cell how would u get another one.think the volt batterys were better.
So the BMS is likely just a balance board, and info gathering board for the main control board that makes the decision for the group ? As for over/under volt, cell and pack, also likely multiple temperature sensors, I'd like to have about 12-20 if those, enough to power a 5kw inverter for 72+ hours, at about 1/2 power, so at a average of 1/10 power it should last about a week+ longer with some sun on cloudy weeks, I might get 50-100 watts on cloudy days, if I'm lucky, for about 4-5 hours, but I'm looking into building a micro hydroelectric generator, to start it will be designed to charge the lithium ion batteries, to about 80% and hold them, and power the inverter, I hope to get or build a charger that will charge with the cc cv lithium charging algorithm, charge to a set voltage, and dis connect, or charge to about 80%, and have full current available to power loads, lithium does not live long at full voltage, they are not designed to be held at fu charge voltage , test have shown it can lead to approx, 0.1% capacity loss per cycle, when charged like this, I'm staying between 3.0 & 4.0v lor liion. 2.8 & 3.4v for LiFePo4, and hopefully they will last for 20 years, then I'll buy what ever is the "thing" to have then! Or if only 5-10 years, I'm thinking about 10 kwh of LTO cells, to replace my 7s liion, maybe 11s, 12s LTO, cells.. maybe I'll go 48v, and 22s LTO cells, they should last forever!! A 10-15 kwh should be fine, especially if the hydroelectric does about 1Kw, and I get about 2.5kw more solar, I could probably get by with hydro only, with 2kw of solar, but I feel safer with about 4.5kwof solar and hydro power, I have missed all the big batt packs lately!! I been looking into the C-MAX ev batts, building battery packs is getting old!! All the charging discharging, testing capacity, matching to put in packs! Then the work starts, actually making connections!! But I'm fully off grid, and need the power!!
Hi James, You might be able to help me here? I'm trying to nail down my charge/discharge voltages. For example, with my Chevy Volt pack I used 4.05v/c (volts per cell) for charging, and 3.50v/c for discharging. I thought that made the most sense for capacity vs. cycle life.
But these are 3.2v nominal. The literature I find says 0%-100% is 2.5v/c to 3.65v/c. Do you have any suggestions on what set voltages would be good for perhaps a 20%SOC and 95%SOC?
@@DavidPozEnergy you got all you need to find the answers yourself. Bmv712, the mppt 250/100 from victron, you select the lifepo4 settings on the charger and use the active ballancer for the upperbalance on the cells(3,55v as the charger is set for absorb.) Than start the discharge till the weakest cell reach let's say...3,05.I find this safer. Then check the ah consumed on the bmv and you that nr. write it down in the bmv.712 on the capacity settings. And you're good to go. I would recomand a 48v system 2s6p in your case. Hope it helps.
Hi David, Thanks for the many great video's. What are you planning to use as a charging parameter for your two batteries in series 48v, once you have done a cell check. I would thinking of a charging range of 51.2v to 56.4v or 3.2vcell to 3.65vcell. What's your opinion.
Hi Marco, I've been trying to contact BYD for a spec sheet to nail down that info. They have not responded. As of right now I'm thinking 48.0-56.0 volts. (3.0-3.5 v/c) I'm trying to nail down a voltage range that would be about 20%SOC through 95%SOC. I think that's it. I'll probably try the numbers above, and try to map a curve, then adjust as needed.
@@DavidPozEnergy I just order 6 of these batteries for my setup. Yes, i did get the wifes approval not easy but it's a go. Well once i get them i will go into cell testing mode and if all is well i well test two batteries in series or 48v to see how the cell respond to charging and discharging and wait for you to come up with a BMS idea. keep me a breast.
Absolutley. I'd also love to hear how your testing is going. I think a few people have ordered them, so hopefully we help each other out with BMS ideas and Voltage settings.
I'd be interested to see what you do for a BMS
Me too! LOL. I ordered a Chargery BMS16s to test. I hope that works. It's not here yet, probably take a few weeks.
@@DavidPozEnergy Please show that built in BMS more. that is doing way more vs just sending out voltage and temp to some unknown external device. Did you see a date code any place on the pack or bms? how old are these things.
Hi Pablo, I posted lots of close-up photos of the computer board on my facebook page. facebook.com/DavidPozEnergy/
Hello David, have you written down the specifics of your BYD batteries from your trials? Im looking for watt hours, amps etc for a single BYD 24v box?
Yes, these things are not performing as well as I origingally expected. Currently I'm getting about 3.2 kwh per module. Today there are some great cells made for EV's being sold at Battery Hookup and they are performing to the listed factory specs. So If I didn't own these BYD modules I'd buy more of those. I made a video showing one of the types Battery Hookup has for sale: th-cam.com/video/hlmKmhhqnq4/w-d-xo.html