The S-Pack 1200 battery is a top choice for those seeking reliable warmth in cold conditions. Designed to be compatible with all Therm-ic Powersocks, this battery ensures up to 14 hours of continuous heat, making it ideal for extended outdoor activities. With three adjustable heat settings, users can customize their comfort level to suit varying weather conditions. The package includes two rechargeable batteries that are easy to attach to your heated socks, providing consistent warmth throughout your adventures. A USB charger is also included, allowing for convenient simultaneous charging of both batteries. Provides up to 14 hours of warmth on the lowest setting Compatible with all Therm-ic Powersocks for versatile use Includes two rechargeable batteries for extended heating Features three heat intensity levels for personalized comfort Comes with a USB charger for easy and simultaneous charging Technical Features Heating time level 1: up to 14 hours Heating time level 2: up to 7 hours