two_wheeled
New Member
Newbie question. I have two new Wattcycle 12V 100AH batteries connected in series for a 24V system. They were purchased as a pair and both arrived with exactly 13.1 volts. I've read and searched about needing to balance the batteries, but everything I'm reading appears to refer to balancing individual battery cells that someone would assemble themselves, not assembled batteries like these that have an internal BMS.
1. Do I still need to balance these two manually?
2. Can I top-balance them using my charge controller? I really don't want to have to buy a separate charger if I don't have to. My charge controller has options for voltage adjustments up to 30V, if that helps.


1. Do I still need to balance these two manually?
2. Can I top-balance them using my charge controller? I really don't want to have to buy a separate charger if I don't have to. My charge controller has options for voltage adjustments up to 30V, if that helps.

