BMW OEM EV 8s 28.8v 70ah 2kWh Module
Here awesome EV batteries! These came out of VERY LOW MIKEAGE vehicles and are very balanced! They use 35ah Samsung cells. The module is 8s2p. You can buy 2 modules, series them together, and have an awesome 16s powerwall. If you have an EV conversion, golf cart upgrade, powerwall, etc. These batteries are built very well.
You can easily solder your BMS connections to the tabs. Super easy battery pack to work with.
If you have an inverter that accepts up to 64v input this is a perfect battery for a powerwall. Just wire 2 of these in series and use 1 BMS. Or use these for 24v applications. Of course since this is an EV battery these are great for EV, golf carts, forklifts, ebikes, etc as well.
At this price you can even cut the busbar to make these a 7s 24v battery.
Chemistry: Lithium Ion
Nominal Voltage: 28.8
Fully Charged Voltage: 33.6
Fully discharged Voltage: 22.4
Recommended Max Charge rate: 70a (1c) (2000w)
Recommended Max Discharge rate: 210a (3c) (6000w)
Pulse Discharge rate (10 seconds): 350a (5c) (10,000w)
Measurements: 14.5" x 7" x 4"
Weight: 28.65 lbs.
Here's a helpful BMS wiring video. He ordered the ones with balance leads but you can solder right to the cells. This should help you out and also subscribe to the channel, let's support a fellow DIY battery community member.