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Product Review
- 【Applicable Product And Application Range】: Compatible with all 510-threaded devices, it can be connected to desktop computer, tablet, car charger and other USB ports for charging at any time. It can be used in various scenarios for your convenience.
- 【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.
- 【Product Specifications】: Input Voltage 5V/500mA, Output Voltage 4.2V/420mA. Height is 1.8 inches, width is 0.75 inches, thickness is 0.5 inches, very easy to carry. There are two color indicators, when your device is fully charged, the USB line indicator changes from red to green, indicating that your device is fully charged.
- 【ULTRA-SAFE & SMART】：Built-in 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.
- 【WARRANTY】 We 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.
![[Upgrade Version] USB Smart Charger with Over-Charge Protection and Over-Voltage Protection- 2 Pack](https://images-na.ssl-images-amazon.com/images/I/41k7IUaTkoL._SL75_.jpg)
