3.7V Li-ion Smart USB Battery Charger (1 / 2 / 4 Slot)
Note: Charger Only (Batteries Not Included)
IMPORTANT NOTICE: 3.7V Li-ion rechargeable batteries. NOT compatible with Ni-MH, Ni-Cd, AA, or AAA batteries.
KEY FEATURES
Smart Cutoff: Stops charging automatically to prevent overcharging.
LED Lights: RED = Charging | GREEN = Fully Charged / Standby.
Universal Fit: Supports 3.7V Li-ion flat-top and button-top cells.
Compact Design: Ideal for flashlights, headlamps, and household tools.
SPECIFICATIONS
Input: DC 5V (USB)
Output: DC 4.2V / 600mA
Battery Type: 3.7V Li-ion Only
Dimensions: 125mm x 92mm x 30mm
Certifications: CE & FCC Compliant
Package: 1x USB Smart Charger
QUICK START GUIDE
Connect: Plug into any 5V USB source (LED turns GREEN).
Insert: Load 3.7V Li-ion batteries matching positive (+) and negative (-) polarity.
Charge: LED turns RED while charging.
Done: LED returns to GREEN when fully charged. Unplug when not in use.








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