POWERTECH Battery SP-PTM12-BAT for Sentry GPS and Sentry Eco mobile phones, 1000mAh
Powertech Rechargeable Lithium Battery for Sentry Eco & Sentry GPS Mobiles.
Specifications:
Capacity: 1000mAh, 3.7Wh
Max charging voltage: 4.2VDC
Compatible with: PTM-18, PTM-24, PTM-25