Hofaster [Upgrade Version] 510-Thread USB Smart Charger with Over-Charge Protection and Over-Voltage Protection- 2 Pack

Hofaster [Upgrade Version] 510-Thread USB Smart Charger with Over-Charge Protection and Over-Voltage Protection- 2 Pack

• 【WARRANTY】 ONLY Hofaster can provide 45 day refund, 12-month worry-free warranty. Professional after-sales team provides free life-time technical support. You can apply for service support with your order ID at any time.
• 【UNIVERSAL 510 THREAD】 Compatible with all 510-thread high capacity batteries. With the convex design, the upgrade version can be compatible with much more 510-thread devices than previous version.
• 【ULTRA-SAFE & SMART】 Built-in IC-3540 with Over-Voltage Protection, Over-Current Protection, Over-Charge Protection and Short-Circuit Protection to ensure safely charge. After fully charged, it will quit charging automatically.
• 【BETTER HEAT DISSIPATION】 Boasting high quality PCB and larger size, ensures better heat dissipation and longer life span. In this marketplace, the upgrade version 510-thread charger could be the best USB charger for all 510 threaded devices.
• 【SPECIFICATIONS】 2-Pack, Input 5V/500mA, Output 4.2V/420mA. Warm Tips: The input Voltage/Current are not allow to exceed 5V/1A, which means you can't use fast charger to power it.