Improve the charging speed of your D-LI90 Battery Pack with the K-BC177U Rapid Battery Charger Kit from Pentax. This rapid charger can fully charge the battery pack in approximately 150 minutes and is compatible with the K-01, K-1, K-1 II, K-3, K-3 II, K-5 II, K-5 IIs, and K-7 Digital Cameras.