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Fascinating little project sir. Next time would it be possible to use a laser thermometer to check the temp of the diodes? It would also be interesting to see what a heat camera reveals about the setup.

I just received mine damaged right out of the box. Seems like I got a reviewed one because someone took off the lid and the wires were all exposed and a screw fell out of the case. SMH, Also the corner of the battery case is cracked too. I'm Hoping wattcycle will make this right. I was looking forward to putting this battery in my FWC set up. I will post back on here what the outcome is

a lot of the cheap AC lawnmowers and weed-eaters as well as shop-vacs can be powered with DC because they have brushed motors and use an AC to DC rectifier to feed the motors

Do they make a wife dc breaker that can be used for this?

Thanks for sharing your knowledge! I’ll have to watch your other videos. I played around with this several years ago but never did much with it.

I have a simple string of 100W incandescent bulbs to utilize my solar excess. It's a 48V system producing up to 75V. Didn't realize I was leaving Wattage on the table. I wonder if I could use relays to vary the number of bulbs in use, to crudely regulate the MPPT. . . .

Thanks for your reply! I plan following your posts to learn about providing heat via solar. I’m in NM where the Sun shines several days in a year. Thanks

I would like to see proven pieces large of full sized panels connected directly to the best option heater for safe, reliable heating. One panel to one heater in each room.

What would cause a solar array putting out 130Vdc in series, when directly connected to a Water heater element, The voltage drops to like 10Vdc nothing else is connected?

Love your work I hope you don't mind me trying a few things at home. I Am The lone ranger of home maintenance and repair. I feel a solar-powered heat system coming on

Thank you for explaining your experience. Would a battery supply into the heaters create a buffer for the voltage spikes?

awesome.

Great review, could you please do a video on how you modify a harbor freight ONE STOP GARDENS WINTER 400/900 Watt Oscillating Parabolic Heater to work on DC power...Peace

I like what you are doing and have learned some important things. Thanks for sharing this. I have some thoughts you may want to consider. 1. load matching is important to the best efficiency and is key to an hands off system - manual load matching is not practical for me or others. Have you considered trying this? 1. Connect, for example, three loads in series and then shorting one load out at a time using two relays (i know relays are expensive) then operate the relays using a diode string to operate the relays to adjust the load automatically? The load matching could then be automatic. There also could be 4 or 5 loads in series with more relays but hopefully you get the idea. 2. Instead of using a fixed solar panel pointing south, use solar panels point east and west only. This removes peak loads in the middle of the day but is compensated by higher outputs outside the mid day. This reduces the amount of resistance load matching required with idea #1. More panels are required but the panels will remain cooler and that compensates for the lost mid day direct sun light. If they are mounted vertically they will not collect as much snow. There are videos on this positioning concept on TH-cam. Use of used panels will compensate the extra panels required.

How do they hold up switching relays? 12-30 volts DC and usually sub 50 milliamps.

TrueNAS +ZFS work?

I should rewatch this when I'm sober.

I have this battery. Amazing customer service. Very responsive to various questions I had during my build. I've been using it for about 5 months now. No issues. I'm thinking about purchasing another for more capacity. Thanks for all your videos.

Whats your opinion on the Go sun solar oven?

Yep. Do not try to measure mains with this! I learned this the hard way. At least I am alive to tell you.

More information than I really need to know. Bottom line: if I lost power which electric heater will run longest on this battery to keep me warm?

Thanks nice experiment

Not that I know how or am capable of doing this (my mind always tells me yes you can TRY), so after looking up the cost of supplies, I can see why no one (company) is probably making them. That thermal blanket really is costly, which would make the product $$ on the open market. Now if manufacturers would sell them, I'd purchase in a heartbeat.

Looks like a good battery, but I have been looking into efficiency and 48v seems to run far more efficient than 12v systems

This is an excellent overview for people that already have some background in solar. It doesn’t explain things like grid-tie vs. grid-tie with battery storage vs. off-grid vs. portable power station and using extension cords. I have a partial off-grid 24V/2.4 kWh LFP plus 400W solar array I use to feed just one or two 120V circuits in my house using a manual transfer switch. I didn’t realize some MC4 connectors could be poor quality and the larger panels could be fragile. I agree with you that home solar might not pay for itself, especially if you have a grid tie solar+battery that you paid to have installed (or worse, lease to buy).

A lot of modern TVs can run directly on 12v DC. Look at the TV circuit board for a Jst micro connector plugin. The TV circuit board should be labeled "PWR Upgrade" or something similar. The Jst micro connector can be wired directly to a 12v car cigarette lighter plugin.

Thanks, much more understandable than the manual. And yes, I took have a damaged one that I will tear down and try to get working. I'm hopeful because it exploded a 100uA capacitor and blew the board trace leading to the current shunt. LMK when you get around to your tear down.

This explains a lot! Thank you so much. Perhaps it seems too obvious to some, as I have never seen this so well demonstrated. Fantastic video! It was a real eye opener for me. You have done a great service.

hey bro...i dont know what mod u did as yet. but i recommend if its a cirtcuit or a pcb.. maybe you can work with pcbway - mass produce your mod and market it!

Haven't watched yet but I sure hope this is going to be actionable. Inverter leaching is such a pain for things you'd rather leave plugged in all the time like a freezer. Sure you _can_ just run it for a couple hours a day during winter (when solar energy is sparce where I live) to top off the cold, but that's such a hassel. (And dedicated DC appliances are so expensive in many cases)

Best part was the props sent to mom.. for the food prep! 😊

Did I miss the link to or description of the compressor?

What diods are you using? I want to regulate my 3700 watt solar array down to a max voltage of 400vdc I got a diod sample pack with like 20 different ones... If you could put me in the ballpark of which ones I should be using, that would be amazing!

Make 50v heater even i can do or maybe 2 24v best

Fantastic video! Heavier duty relay/switch contacts wont be enough, additional "break" mechanisms like springs and cams driven by a motor would be necessary - AC fundamentally has zero crossing that quenches the arc - something DC cannot provide without modifications. Now if someone designed a system that would put in zero crossings into DC, that could be a start of something truly innovative!

Im looking for a similar watt meter. Do you have a link.

Also, if it does not burn out it WILL weld together expressly with 120 vdc. It will do it every time. I have done it.

Yep! You confirmed my thoughts! DC voltage in conjunction with the amperage is just like welding and has to have heavier duty contacts as well as a possibly necessary arc/spark breaker to interrupt the circuit. A/C definitely has its place safety of energy transference as well as distance transference with minimal energy loss. I learned early on that DC welding always gave a better looking bead without as much spatter!!!

🤦Need open battery 😢

Thanks!

Thanks for the info!!!

Nice review. If i didn't already have my ecoflow delta's.. this would be a good option. Now.. let me borrow that parabolic heater. My propane ran out a few hours ago.. and still in bed. Too cold to go swap it out for a full bottle. 😁

You could make a decent product from this… Stainless steel Thermos with a flexible solar panel wrapped around its diameter (for storage) which you can unfurl for when you want to boil some water. I would buy that. 😅 *edit* even those low early morning (low sun) temperatures would be good for coffee, perfect for camping. 🤗

Awesome vid man! What’s the heating element on this thing?

I just dont understand why people dont screw space heaters to the floor. Before I got my diesel heater in my rv I had a little space heater which really didn't do much heating but it was all I had at the time. I had a puppy and the puppy frequently had the zoomies and would knock the heater over and that would turn it off of course. I was frustrated at constantly having to get up and set it back up so I took it apart and shot some deck screws through the bottom and managed to get it back together. No more tipping, no more worries.

Really good this, so patient and explains everything I need to know, the safety aspects regularly explained are so important, and shows how thoughtful you are regarding viewers safety and indeed, life !! = Excellent tutorial

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After watching your video. I started searching on how to hook a grid tie inverter up the safe way. Not much found about it. Tell me if you know if this is one way to do it safely. Hooking it (Single phase) in the breaker box to the the least loaded main of the two above the breakers and to the neutral. To me it would be like power coming in. I'm about to hook one up and and I know what you said is true. VERY WELL PUT. Your video is the only one I have found about what you explained.

I have tried to tell other gride tie people this and I got. Not true. Your nuts. It's OK.

Can a 12V 120W peltier water cooler with two 12V cooling fans (computer type cooling fans) be powered directly by a solar panel without using an MPPT or PWM charge controller and solar battery? If so, how many watts would the solar panel need to be?