Core Accessories Dual voltage lithium ion B-mount battery with a robust load output.Capacity: 10Ah, 148whOperational Voltage: Native Dual Voltage, DC 11v-16.8v/DC 22v-33.6vSize: 3.54″ x 4.65″x 2.72″Weight: 2.2lbs.Load: 20A @ 16.8v, 10A @ 33.6v