1pcs universal battery charger smart battery charger mini multi-function rechargeable battery charger

General description This universal battery charger is designed for various sizes of lithium-ion rechargeable batteries, including flat and convex heads. It features intelligent charging capabilities, ensuring reliable performance and battery protection. Technical specifications Input voltage: 5V Charging current: 500/1200mA Compatible battery sizes: 26650, 18650, 17670, 14500, 10440, 16340 Usage Red light indicates charging; blue light indicates full charge. Automatically stops charging when the battery is full. Can be plugged in for long-term backup with trickle compensation. Other information Comprehensive protection function: charger will not operate if the battery is installed reversely. Note: Manual measurements may allow for a 1-3cm error; color may vary due to lighting and display differences.