Product Review

Product Details

Smart Battery Charger:
It is with high efficiency and reliability! High Quality 4 Slots Charger for 18650 Battery. Quick charge with automatic constant current control prevents battery from overcharging, short circuit, and electronic shock.
Input Voltage: AC 100V - 240V 50 / 60Hz Max150mA
Output Voltage: DC 4.2V 650mA
Rechargeable Time Limit: About 7-10 hours
18650 3.7v Rechargeable Battery:
Brand: Wyness
Voltage: 3.7V
Storage Voltage: 3.7-3.9V
Charging Cut-off Voltage: 4.25V
Discharge Cut-off Voltage: 3.0V
Capacity: 2500mAh
Norminal Capacity: 2500mAh
Size: 18.0*65.0mm
Weight: 46g
Battery top: Flat top
Material: Lithium Li-ion ICR
Recharging cycles: At least 1000cycles
Appliations: Flashlight,headlamp,lantern,LED light,dive light,green laser,fan,headlight,torch,laser pointer,gun laser,weapon light,ecig,mechanical box mod and so on
Pakage include:

4PCS 18650 Rechargeable 3.7V 2500mAh Lithium Li-ion Battery, 1PCS Four Channels Fast Li-ion Battery Charger

Caution:

Never completely discharge li-ion battery ( below 2.5V under load ).
Never use force to install (insert) li-ion battery.
Do not use old and new battery cells together.
Do not expose to heat.
Do not short (connect) positive (top), and negative (bottom) battery terminals (contacts).
Keep battery that is not in use in plastic holder (or any insulating [plastic] container).
Never charge battery over 4.25V (another reason to use high quality battery charger).
Do not charge unattended.
Do not use old, and new cells together.
Do not store your li-ion batteries fully charged (for extended period of time).
Store in cold and dry place at approximately 3.7V (storage charge).