Following battery max can hold 65 pcs 18650 cell. generally following case do following batteries:

24V10.4AH , 24V11AH , 24V13AH , 24V13.2AH , 24V15.4AH

36V10.4AH , 36V11AH , 36V13AH , 36V13.2AH, 36V15.6AH

48V10.4AH , 48V11AH , 48V13AH

Above batteries based on 18650 3.7v2200mah and 2600mah cell assembling,7S4P,7S5P,7S6P,7S7P,10S4P,10S5P,10S6P,13S4P,13S5P.

All batteries with BMS,BMS function: over charge protection,over discharge protection,short circuit protection,high temperature production.