I picked up one of these kits to try out, you cannot beat the price! It showed up in about 4 days. Got it put together in about 2 hours (taking my time) and it fired right up. Initial voltages were all over the place with the BMS reporting 211AH total (should be 280AH) but this was expected. After a complete 100% and floated for about 6 hours the active balancer brought everything to within 0.005mv and a total capacity of 281AH. Nice! I have been running this battery for about 10 days with zero issues. Discharge to 10% and recharge to 100% every day. Cells were near perfect. BMS and LCD work perfect. Just a tip, pick out where you want to place it because when you are done building it, it will be about 300lbs!

Totally recommend! Find another 280AH 48V battery for $1700, I dare you!