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I don't see any other mentions of this device on this forum, so here goes... I've-- thanks largely to Will Prowse-- been happily running a small home solar power system as a hobby for years now, and friends come to me for advice. Recently one was looking for a solar-generator type power box, so...

Hello! I have a 1200-watt solar array on the roof of my sunporch. Until recently, I used 8x1200wh 6-volt lead-acid golf cart batteries for my battery bank. I also until recently owned a cargo trailer with 600 watts of panels and 6 identical 1200wh batteries. While both systems worked well and...

I'm about to build a 12-volt 280ah battery with cells from one of Mr. Prowse's current favored Ali Express sources, using a 250 ah Daly BMS. I don't have a hobby-charger or any of the relatively specialized bench-gear I see others using to top or bottom balance, and don't want to buy any given...

I am considering building a project purely for fun. To make it work, I'll need a 1500 (no smaller) to 2000-ish watt 12-volt inverter that's no more than roughly 12" long. It can be up to 12" wide as well, but no more than about 12" on any one side. I cannot make this work, with, say, multiple...

I currently run a small (1220 watt) home solar plant with golf-cart type lead acid batteries as my power-bank. When I bought these batteries-- there are eight of them, and from time to time I've wished for a bit more capacity-- I learned that I had to buy all the batteries at pretty much the...

I'm considering building a home-made portable LiFePO4 power station to keep full-time in the bed of my pickup, where I have a 12 volt lighter-style power outlet that only is powered when the engine is running. (I live in Florida and never travel up north in cold weather, so low temperatures...

Is there a plug-and-play product out there that would allow me to connect a standard (cigarette-lighter) 12-volt _regulated_ power outlet to a 12-volt LiFePO4 battery? Or even better, a single plug-and-play product that would allow me to connect several such outlets? I've successfully built...

Most budget LiFePO4 100ah batteries are only equipped with BMS's rated for a 100 amp sustained discharge, which is inadequate to power a 2000 watt inverter especially at low charge levels. I'm well aware that in practice you can pull a lot more than 100 amps from most of these batteries for a...

After a quick search I've found no previous mention of this problem, so... Last night I for the first time used my Bluetti EB3A as an uninterruptible power supply (UPS) for my CPAP. About 2-3 hours into my night's sleep it shut down, showing an "overload" indication despite the fact that my CPAP...

I recently bought a set of 16 of the very common 280ah Lishen cells (from SoonBuy, one of Will's favored suppliers), but for budgetary reasons I made multiple orders instead of buying them all at once. My first set of four cells made it here in perfect condition, but the second lacked all...

Hello! I need to work out a way to efficiently charge one independent battery bank from another of the same voltage. I have two 12v independent battery banks that are entirely off-grid. Both banks are lithium iron phosphate. One is fixed and immobile-- it consists of 4xLishen 280 ah, with 100...

This looks too good to be true-- the cost looks very low for the claimed capabilities. Anyone tried one yet? Bestsun Powerwall

Hello! I've successfully built and managed two smallish solar setups-- 1200 watts at home, and 600 watts on a travel trailer-- for over a year now using a lead-acid battery bank, and am considering investing in a very large LiFePO4 bank with the intention of adding more panels later when...