Batteries with the best price/performance ratio will last up to 22 hours. You can choose from 3 levels of heating power that you control directly on the body of the batteries.
The batteries are only compatible with heated Therm-ic insoles.
| Batteries | Level 1 | Level 2 | Level 3 |
|---|---|---|---|
| C-Pack 1300 | 11 - 13 | 5 - 7 | 3 - 4 |
| C-Pack 1300 B | 11 - 13 | 5 - 7 | 3 - 4 |
| C-Pack 1700 B | 21 - 29 | 9 - 13 | 4 - 6 |
Values are given in hours