【Safety Material】The lithium polymer replacement battery pack has passed UL(Underwriters Laboratories Inc.) and FCC(Federal Communications Commission) and other related certification. You can use it with confidence.
【Versatile Usage】The li-polymer battery pack charging port is female DC jack (3.5mm outer diameter, 1.35mm inner diameter) . Can be used as a replacement battery for most heated gloves and socks.
【Please Attention】 Keep away from flammable materials when charging. Do not crush puncture,incinerate or short circuit . Remove battery from garment before washing. If you do not use batteries for a long time, please charge and discharge it once within 3 months.
【Quality Assurance】Rechargeable batteries doubles your warm time in cold winters. If you have questions or dissatisfaction with the product, please leave us a email, we will solve it for you in the shortest time.