Replacement battery for MGC. Specifications: 1800mAh, 3.7V, Li-ion. Compatible with: MGC, MGC-PUMP Detectors, Multi Gas Clip MGC Pump Pellistor, Multi Gas Clip MGC Pump IR. Replaces: GasClip MGCBAT1, GasClip MGCBAT1C, GasClip MGC-P-PUMP, GasClip MGC-IR-PUMP, GasClip MGC-BAT1, GasClip MGC-PUMPBAT. GasClip replacement battery designed for Equipment/Survey/Test Charger devices.