Михаил, вот такая спецификация:
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Li-ion Battery 4-SLOTS SMART CHARGER
Specification:
Name: 18650 4-slots Charger
Model: BH-042100-04U
Features: 4 slots independent charging
Color: black
Material: ABS
Input voltage: DC 5V 1-2A
Output voltage: DC 4.2V 1000mA
Certificate: CE FCC RoHS
Compatible battery model: 10440,14500,16340,16650,14650,18350,18500,18650
Smart charge with six protections: overcharge, overcurrent, over temperature, circuit, reverse connection, over discharge
Package list: DC 4-Slot charger x1