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Purchased 2 of the lifepower4 24v batteries from them at the end of May '22. Received them at the end of June '22... problems from the very beginning. Their capacity was set to a 48v battery (100Ah. Should have been 200Ah) and the voltage seems to be regulated to 26.5v as it won't charge above...

I have Epever SCC, Model Tracer4215BN-40A and 2 - 24V Signature Solar 200Ah rack batteries wired in parallel. Curious to know if anyone has settings? Currently waiting on EPEVER to get back with me. But I suspect it will be a few days, if not longer. Hoping to get this fixed ASAP as it's for my...

I have a bad cell in one of my A123 24v batteries. Still new as a DIYer. Looking for ways to replace the cell to restore the battery to 100% working levels. If anyone has a bad battery I could harvest from.... or if anyone is more knowledgable on some other way to replace or maybe even...

have 2-24v batteries, each with their own BMS, in parallel. Charges fine, but when they go under voltage one of the BMS trips and shuts down the battery. The other battery doesn't trip though..... I could go on with more detail, but maybe you see the problem? How to solve? Should I buy different...

So I bought 2 - A123 Systems 24v Batteries (from Bigbattery) after the vid Will made last year. I've been trying to figure out my van build since then and now I'm full time in my van with no power. Initially I thought it was my Giandel inverter that was weak. I've been emailing back and forth...

I need to know what size terminal bolts to buy. Not seeing them on Will's site. Is there a standard? I have the A123 systems 24v LiFepo4 2.59KWh battery. I've found that brass is best, is that correct? Seems like an easy enough question to google, but can't find consistent answers. TIA

Is it possible/safe to connect 2 - 12v alternators in series to get 24v to charge my 24v leisure battery? If so, would the original alternator still charge the 12v van battery? I'd assume some sort of diode circuit would be needed for that.

I've got 6 - 150v panels I want to wire to 2 - 40A SCCs. Each SCC can handle all 6 panels on their own, but I just wanted more charging amperage. I'm combining all 6 panels on my roof with branch connecters. Once it's inside my van, should I wire those leads to 2 buss bars to split it back up to...

I have 4 HQST 150w panels. 2 - sets of 2 panels connected in series, and then connected to my AC200 in parallel. Combined should be roughly 600w. It's my first time setting up solar and my brain is frazzled from the safety logistics of building my roof rack from scratch. I think it's pretty...

Delete this if it's posted elsewhere. I didn't see it in Will's book, though maybe I missed it. I think this is really a question about charge controllers. Shouldn't we try to best match the battery's Ideal charging rate to minimize degradation? At the same time, we need to maximize the...

Sup all, fresh meat here. Haven't driven since the collapse in '08. Recently got a van, having nuclear installed next month. As opposed to standard 110v or RV plug, I was curious about installing a Tesla plug to charge my system when we have too many consecutive overcast days. I haven't even...