Rechargeable Thermal Water Bag, Electric Hot Water Bottle Hand Warmer Heater for Winter

The listed heat-retention time is approximately 2 hours when used as a hand warmer and up to 10 hours when used for quilt or bedding warming. Actual warmth can gradually decrease over time as the stored heat dissipates.

Connect the supplied power connector to the heating port and plug the unit into an appropriate power source. The bag heats electrically, and the heating process stops automatically when the temperature-control system completes the cycle. Disconnect it from power before using it as a warmer.

Yes. The bag includes automatic temperature control, and heating stops when the indicator light turns off. This helps prevent the unit from continuing to heat after the charging cycle is complete. It should still be used according to the supplied operating and electrical safety instructions.