Koowheel D3M Battery balancer unit box

Made for exactly this one:

https://www.aliexpress.com/item/1005005204505095.html?spm=a2g0o.order_list.order_list_main.35.36ef1802NfpHzS

but you can fit the stock one too.

The whole box have the same outter size as the original one (only the inner size is little bit bigger), so it will fit to a metal cover of the whole battery.