• Wide Compatibility: Wide Compatibility: rechargeable battery 5000mAh high capacity compatible with headlamps, flashlights, doorbells, small fans, remote controls, alarm clock, toys, etc and other electronic devices.
• Product information: TEKOWEE rechargeable battery flat top 5000mAh high capacity, Size: 70*21*21mm(2.76*0.83*0.83inches). Please confirm whether the battery size and battery type before purchase.
• Multiple Security Protection: This 3.7V battery is without any memory effect and provide multiple protections, including short circuit, overcharge, and overcurrent protection. Prefectly make the battery to be more stable and safe to protect your devices.
• Excellent performance: 21700 Battery has no memory effect, More than 2000 cycles of complete charge and discharge cycles. once purchased, long time use, save a lot of money.
• Customer service: If you do not like our 3.7V lithium batteries, please contact us and we will replace them or give you a full refund.