Canon BP-828 (BP828) High Capacity (2670mAh) Battery Pack for G/X Series Camcorders, G30, XA20 & XA25 (p/n 8598B002AA). The Canon BP-828 High capacity Lithium Battery for G30 / XA20 / XA25 is a small and lightweight battery pack designed to be charged and used without ever losing its ability to a charge. The battery has a voltage of 7.4V and a capacity of 2670mAh.
Take advantage of uninterrupted power with this rechargeable Lithium-ion battery. Lithium-ion batteries last longer and are resistant to the effects of "memory effect", meaning you can charge and recharge your battery without fear of draining the battery. Times vary depending on camcorder and shooting conditions.