1. Interface: USB
2. Input: DC 5V 1-2A
3. Output: DC 4.2V 1A
4. Compatible battery models: 10440, 14500, 16340, 16650, 14650, 18350, 18500, 18650
5. Size: about 10.5 x 3.1 x 3.4cm
6. Weight: about 35g
7. Description: only the charger, not the battery in the picture

Features:
1. Sliding blade design, compatible with various specifications of rechargeable batteries
2. LED lights show charging status
3. Environmentally friendly engineering plastic material, high temperature resistance, safe heat dissipation
4. With charging protection function, it will not be overcharged
5. USB interface, a variety of power supply methods, convenient and fast
6. Overcharge/overcurrent/overtemperature/short circuit/reverse connection/overdischarge multiple protection, safe to use