This battery is custom designed for the Trackimo device. It comes with charging cradle.
High efficiency Li-Ion battery Voltage: 3.7V Capacity: 600mAh 2.22Wh Charging voltage 4.2V Light in weight No memory effect
Simply place battery into charging cradle. Plus one end of Trackimo charging cable (not included in this pack) into USB charger port on cradle. Plus other end of charging cable into USB outlet. Initial charge for battery should be 12 hours.
Note: Battery life will depend on ping rate and cell signal strength