Kapaxen Two BN-VG138 Data Batteries + Dual Channel Charger for JVC Everio Camcorders BN-VG138 Battery Capacity: 4200mAh (Rechargeable) Intelligent Data Batteries Show Remaining Recording Time Charger Input: AC 100V-240V; Dual Output Channel for Two Batteries Li-Ion Batteries - No Memory Effect Lasts 3.0 to 5.0 Hours On a Full Charge