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    Design Review Requested - RV/Tiny Home With Grid Backup

    Greetings, Quick background, we live in a large 5th wheel, and are intending to be grid independent 95% of the time. To this end I installing as much PV as will fit on the roof, and a battery/inverter system. Attached is a rough schematic, and I will list the core components I am currently...
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    Another Top Balance Screwup

    Not my cells. A friend was top balancing, and got in a rush. Turned the voltage up on a batch of cells, and walked away for a quick drink. Forgot about the cells until the next morning. The cells were over 5V the next morning. I had him pull the cells down to 3.6V right away. They went...
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    Compact Battery For Kayak, Suggestions?

    I recently took delivery of a sea eagle tandem inflatable kayak. Its got a good weight capacity, so we are considering doing a couple multiday outings on larger lakes. I am considering putting a ~300W motor on it. I would never exceed 100W continuous though. Any suggestions on cells for a...
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    Doubling up FET Based BMS?

    Anyone got some thoughts on doubling up one of the cheap FET based BMS (overkill, Daly etc)? I don't see any reason why two of them couldn't be used to approximately double the max current for a single battery. Two approaches come to mind. 1: Simply connect both in parallel, adjust settings...
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    12v 560AH Build For Overland Van

    Afternoon folks. Thought I would post up a pack I am building for our van to replace a 510AH lead pack that's about done. Its nominal 12V with 8x 280Ah cells. Here is the battery box design. Its a section view for obvious reasons, not actually cut down the side. Design is intended to drop...
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