MOBILE WARMING BATTERY LITHIUM-ION SOCK 3.7V BK MW370

Our 3.7V standard sock battery delivers ample heat for hours on end via our Mobile Warming Technology^®. Mobile Warming^® uses only the highest quality lithium-Ion batteries to ensure long-lasting power and battery life.

• One battery included
• Rating: 3.7V, 2200mAh
• Input: DC 4.7V, 1000mA
• Charge Time: 4-5 hours