TechNiche IONGEAR EXTRA BATTERY for 5627 IONGEAR Battery Powered Heating Vest and 5690 IONGEAR Battery Powered Heating Jacket. Enjoy an additional 4-8 hours of heat (depending on temperature setting selected) with a spare/replacement battery. These quality 7.6V Li-Ion batteries produce 4400 mAh of heat, which is distributed to three removable heating elements in the garment. The additional battery will double the duration of time available to keep heat for the jacket or it will allow you to charge one battery while the other is in use.
- Extra batteries can be used to extend the warming duration of the Vest and Jacket
- 7.4 volt Li-Ion 4400mAh capacity battery provides up to 9 hours of steady heat
- Additional batteries come with charger
- Battery life is over 500 cycles
- provides up to 10 hours of constant heat
- Extra Li-Ion Battery Set
- One year on battery
