The rear markings indicate the original DualShock 3 draws up to 300 mA of current at 3.7 V for a power consumption of 1.11 W, an order of magnitude increase from the 30 mA of current at 3.7 V (0.111 W) listed on the Sixaxis. However, this current is not drawn constantly and is the maximum current when the rumble is active. Its main power source is an internal 3.7 V Li-ion battery tentatively capable of storing 570 mAh, which provides up to 30 hours of continuous gaming on a full charge.