https://aliexpress.ru/item/33009240023.html?item_id=33009240023&sku_id=67050143358
Yes. It's separate 4 identical 72V 50ah box battery.
each pack have IN + IN - / OUT + / OUT -
4 packs wired by 6AWG cabel in shared capacity. (OUT <=> OUT pairs)
Each pack have inside BMS:
JBD-HP32S001
20 /...