Sixteen Volt 8P4S Kit. Included is the cell logger, the JST connection, a pair of xt-60’s for the power and charging, and a 20 amp blade fuse. You’ll need 24 cells. The finished battery measures 3.8″ high, 4″ long and 4.5″ wide.
You can charge and balance it with a 6s hobby charger or use a 4S BMS.