The BJ-11 Battery Charger is a must-have for frequent photographers. Quickly replace an empty battery with a new one and continue to take photos without delay. Don’t waste time charging the battery in the camera. The BJ-11 charger can fully charge the replacement battery in just 2.5 hours. With a USB-C connector, you have a variety of charging options, from wall outlets to power banks for on-the-go charging. Designed for GR III and GR IIIx batteries.