Kastar 2-Pack Battery and AC Wall Charger Replacement for Topcon BT-61Q BT-62Q BT-65Q BT-66Q GMS-2 Topcon Survey Instrument FC-200 FC-2200 FC-2500...

Battery Type: Lithium-Ion; Battery Voltage: 7.4V; Battery Capacity: 5800mAh. This AC wall charger with foldable flat pin for easy storage. The charger Input: AC 100~240V 50~60Hz; Output: DC 8.4V 600mA. LED indicate: Red light for charging; Green light for standby or full-charge.