I'm hooking up a BMS for charge, low and high temp protection on a 30amp connector. The 300amp cables will just be attached directly to the battery and not protected.
Really the only affordable way to go if you want hundreds of amps of discharge without protection, let you pump those big numbers on well matched cells between discharges or charges while taking advantage of power.
I was super excited to get this 12v 74ah lev60 kit. Built a half inch plexi box and just hooked the heltec balancer up and instantly smoke.. I can't figure out what I did wrong..?.?.
They may not seem to be worth putting a full blown BMS on them rather than just a balancer, but keep in mind the conditions you're using these in. If the site is going to drop below freezing, you are going to want to protect the batteries from damage from charging, or load. If you can warm up the space the batteries are in with excess electrical (solar, wind)_ you might do that, but it may be worth simply adding a contactor that is controlled by a thermometer to drop external power to the charge controller, and another that drops the batteries out of the loop as well. (I live in MN, using a full blown BMS on this might be worth not having to replace the batteries every spring...
Note that the above may be eased if you have access to a backhoe and can set up a vault undetground for your battery bank. Still a good idea to get it below the frost line, but it will also help with thermal management for high tempretures.
@@jehugarcia I'll agree that it probably isn't. Didn't see that as part fo the description or title before I commented. Thank you for overall some great videos.
BMS's are really simple. I'm sure Jehu could create a BMS PCB with his eyes closed. All it is is a bunch of mosfets that act as switches. One row for charge, one row for discharge. Some components to sense cell voltage and then some will have the balance circuitry also on the board which is just a bunch of resistors that bleed all the cells down to the lowest cells value. You do have to use something to set some of the parameters like balance on voltage
Is this LEV60 bank a better option than building a 48ah headway bank? Does it need compression like CMAX ? I have a pair of korean 1600 amps to strap at 1 ohm and a matching 4 channel amp AL110.4 for my doors so a total of around 3500 rms at most. Im new to lithium but man thats like half the price of just the parts to build the 48ah headway!
Just to clarify he mentioned 400a continuous but at 180a cont he is specifically referencing the 12v parallel packs at 360a~400a continuous not the 4 cell pack
negative... ive tested these cells at 4s 400A continuous, they stay cool and perform above 12v th-cam.com/video/6RDacZ21F5A/w-d-xo.htmlsi=emQFS65N-HWPAbyz&t=256
@@jehugarcia Ah I apologize then. Was going by the specs. The specs also show a wide voltage range but I am guessing they perform similar to most lifepo4 on discharge curve? Going to do some testing but curious. High amp BMS can be cost prohibitive if you want the high discharge so planning to just use flying caps to balance, with maybe a small BMS for charging and then bypass for discharge.
@@ShaleAudiothey are amazing I’m doing a series of tests now over on my channel. These batteries do everything they should plus more. I powered a godfather 5d with nothing but the $150 battery pulled like 250 amps for 30 mins straight it never lost charge and never got hot. The voltage display was hotter than the battery or buss boards
@@BassDad What voltage did you discharge to and how did cells do for IR pairing (or final individual voltage after the group discharge)? I've tested 6 cells so far for capacity and they are doing well, 71.3-72.1ah so far @ 40a, definitely following the standard lifepo4 curve so far. Really liking these cells.
Just use a regular car battery charger like a Schumacher type charge rate at 5amps while keeping an eye on it you should never leave any lithium batteries unattended while charging anyway there you go have a good one.
@@jehugarcia I ordered my lev60 on august 31st and it still hasn’t arrived..the FedEx tracking number says it’s still in California with the shipper.order # 22919..any reason why??
@@brenthenderson151 I waited for one too, delay was because they were short one of the parts, but they sent it out already. My buddy already got his, he's loving it.
$150 Lev60 12v battery - j35.us/12v74Ah
Heltec Balancer - amzn.to/3ZfBGO0
BattGo Balancer - amzn.to/3LczLni
i dont see the connector on the site for the BatGo Balancer, i need a connector
Same. Only see the 8 pin available in the store
You can use the 8pin
@@jehugarcia ill buy one see if i can make it work .Thanks Jehu
I purchased the lev60 long with the 2.54 8 pin jumper cable it said I required on the website.. it looks like your using a different one.why is that??
I'm hooking up a BMS for charge, low and high temp protection on a 30amp connector. The 300amp cables will just be attached directly to the battery and not protected.
Really the only affordable way to go if you want hundreds of amps of discharge without protection, let you pump those big numbers on well matched cells between discharges or charges while taking advantage of power.
Without a BMS these packs need to be charged with a balance charger so an additional active balancer doesnt really make sense
I was super excited to get this 12v 74ah lev60 kit. Built a half inch plexi box and just hooked the heltec balancer up and instantly smoke.. I can't figure out what I did wrong..?.?.
that's great but where did u get the connection from for the dive doesn't come with cables the balancer with screen
They may not seem to be worth putting a full blown BMS on them rather than just a balancer, but keep in mind the conditions you're using these in. If the site is going to drop below freezing, you are going to want to protect the batteries from damage from charging, or load. If you can warm up the space the batteries are in with excess electrical (solar, wind)_ you might do that, but it may be worth simply adding a contactor that is controlled by a thermometer to drop external power to the charge controller, and another that drops the batteries out of the loop as well. (I live in MN, using a full blown BMS on this might be worth not having to replace the batteries every spring...
Note that the above may be eased if you have access to a backhoe and can set up a vault undetground for your battery bank. Still a good idea to get it below the frost line, but it will also help with thermal management for high tempretures.
Not sure how this relevant to car audio….. solar storage packs should use bms
@@jehugarcia I'll agree that it probably isn't. Didn't see that as part fo the description or title before I commented. Thank you for overall some great videos.
Is the balancer work for LIPO, pouch cells? It says so in the listing but sometimes that's misleading.
Yes, the battgo one at least I use that exact one for quad and fpv plane lipos
7:05 well ofc they are within 5mV , you're at the flat part of the curve. Lets see those charged to 3.65V and then see the balancer keep up.
Good evening Sir. Great video as always. Where can I find those silver distribution blocks on top of the circuit boards? Thank you
Ali express has them
Hey there, where can I get that exact terminal block with the bolt down
Can you learn how BMSs work and can you fully integrate it onto your own designs 😊
BMS's are really simple. I'm sure Jehu could create a BMS PCB with his eyes closed. All it is is a bunch of mosfets that act as switches. One row for charge, one row for discharge. Some components to sense cell voltage and then some will have the balance circuitry also on the board which is just a bunch of resistors that bleed all the cells down to the lowest cells value. You do have to use something to set some of the parameters like balance on voltage
Hey Jehu, why not design a board with the pads for capacitors to have the option of an onboard Balance function to the DIYer to add them if desired?
Because I can’t design a better balancer than it’s already in the market
@@jehugarcia fair enough.
Jehugarcia can you put a link to the big terminals you are using on the battery. Thanks
I'd also like to find those same terminals. Been looking everywhere. Just ordered my battery
Nice👍
? Can you use lipo 100 amps with an 200 amp?
CAn u make a 16 volt out of it ??
Does anyone know of a good 10a balancer on amazon?
Is this LEV60 bank a better option than building a 48ah headway bank? Does it need compression like CMAX ? I have a pair of korean 1600 amps to strap at 1 ohm and a matching 4 channel amp AL110.4 for my doors so a total of around 3500 rms at most. Im new to lithium but man thats like half the price of just the parts to build the 48ah headway!
Yeah way better than 48Ah headway, can do more power and has more capacity for $150
I’m going to put a 10ft extension on the bms device so I can view it up front with me. What awg would you recommend the wire to be?
I do car audio, so I need to keep an eye on my voltage while demoing. That’s why the device will be up front in the cab with me.
Do u sell a PCB for the 4s2p
Just to clarify he mentioned 400a continuous but at 180a cont he is specifically referencing the 12v parallel packs at 360a~400a continuous not the 4 cell pack
negative... ive tested these cells at 4s 400A continuous, they stay cool and perform above 12v th-cam.com/video/6RDacZ21F5A/w-d-xo.htmlsi=emQFS65N-HWPAbyz&t=256
I can attest to that I personally have pulled more than 400amp with minimal voltage drop on a 7k sound system lol these LEV60’s are beast batterys
@@jehugarcia Ah I apologize then. Was going by the specs. The specs also show a wide voltage range but I am guessing they perform similar to most lifepo4 on discharge curve? Going to do some testing but curious. High amp BMS can be cost prohibitive if you want the high discharge so planning to just use flying caps to balance, with maybe a small BMS for charging and then bypass for discharge.
@@ShaleAudiothey are amazing I’m doing a series of tests now over on my channel. These batteries do everything they should plus more. I powered a godfather 5d with nothing but the $150 battery pulled like 250 amps for 30 mins straight it never lost charge and never got hot. The voltage display was hotter than the battery or buss boards
@@BassDad What voltage did you discharge to and how did cells do for IR pairing (or final individual voltage after the group discharge)? I've tested 6 cells so far for capacity and they are doing well, 71.3-72.1ah so far @ 40a, definitely following the standard lifepo4 curve so far. Really liking these cells.
Does the battgo balancer have a permanent ON setting for continuous balancing?
Don’t think so
I bought just the cells instead of buying the. Complete battery lol
How much is one with the bMS on it
No
What are the dimensions of the batteries?
D:7inches W:9inches H:5 inches
Wats type of charger do I need to charge my lev60 once I receive it?
Any charger that charges to 14.6v can be used
One of the 30v 10a chargers on Amazon for 150$
Just use a regular car battery charger like a Schumacher type charge rate at 5amps while keeping an eye on it you should never leave any lithium batteries unattended while charging anyway there you go have a good one.
@@jehugarcia I ordered my lev60 on august 31st and it still hasn’t arrived..the FedEx tracking number says it’s still in California with the shipper.order # 22919..any reason why??
@@brenthenderson151 I waited for one too, delay was because they were short one of the parts, but they sent it out already. My buddy already got his, he's loving it.