Products BT100 BT10 BT200 BT5120 Price $269.00 $49.99 $499.00 $899.00 Nominal Voltage 12.8V 12.8V 12.8V 51.2V Capacity 100Ah 10Ah 200Ah 100Ah BMS Board (5s) 100A 10A 200A 100A Continuous Discharge Current 50A 10A 100A 50A Energy 1280Wh 128Wh 2560Wh 5120Wh Product Size 13x6.8x8.5 inches 6x2.6x3.7 inches 21x9.5x8.7 inches 20.5x10.6x8.7 inches Product Weight 23.8 lbs 2.2 lbs 45 lbs 86 lbs Standard charge Current 20A 2A 40A 20A