Batteries for heated socks - S-Pack 700BThe S Pack 700B battery has a maximum autonomy of 8 hours and is controllable via your smartphone thanks to Bluetooth technology. It has three different intensity levels, allowing the user to adjust the level of heat to suit their needs. It can be recharged using the included USB charger. The pack includes two rechargeable batteries. Easily adaptable to compatible heated socks to provide constant heating during winter outdoor activities. In a nutshell

Advantages of the Boost Heat Technology :

Knee height

Grade Good Very good Like new Year of production <2021 2021 2022 Guarantee 6 months 1 year 2 years Reconditioning Therm-ic products

Heating time level 2: up to 8 hours

Cushioned reinforcement under the foot: maximum comfort

Lightweight

promoting foot breathability and keeping your feet dry

Heat Fusion UNI technical specifications :

so that water vapor can escape

Engineered for Comfort and Precision

a safety cord so you don't lose them

Available in the following sizes: 35/38 - 39/41 - 42/44 - 45/47