just bumping this

Hi, Looking at inverters built I quickly realized that most of them look sketchy in an environment exposed to constant vibration as well as the pricing skyrockets above a few kW of output power. I thought of the idea of having say a prius inverter used in 50Hz 230ish Vac 3phase output mode with DC g...

Split modules seem like a good idea, thanks. I'll start with the module design. Disassembling the batteries turns out to be much more labor intensive if we're talking hundreds. With all the PCBs and enclosures I am looking at 50-55kwh @ 280-300kg, which is not bad. I am not yet sure what to do regar...

I live in Latvia. No one off EV swaps have been legally done here since 2018 when UN R100 came in power as told by the local road authority. There's a company doing van conversions, but they did type approval for their batteries in a lab. There have been discussions for the past 2 years to do a nati...

Hi, I've acquired 500ish 4S drone batteries made by ATL from a drone company I used to work for. Most of them are new, but datecode goes back a few years, so there is some degradation from storage. They should be rated 6800ish mAh, but are mostly 6000mAh. They are HV, cells are supposed to charge up...