Tenergy 4 Pcs RCR123A 3.0V 600mAh Rechargeable Li-Ion Protected Batteries w/Smart Charger(Not for Arlo Camera)

Charger Features
Auto AC power adjust from 100-240V.
Build-in microprocessor automatically switch off when batteries are fully charged.
Safe, build-in IC provides: Thermal protection, Overcharge protection, Short-circuit protection, mechanical. and electrical protection against reversal polarity, and auto defective battery identification.
12V car cigarette lighter plug
Charge 1 to 2 RCR123A from 1.5 - 3 hrs.
Peak voltage of 4.2V without load after fully charged.

RCR123A Features
Rechargeable CR123A Li-Ion Batteries with 3.0V average working voltage (4.5V at peak without load).
Can be recharged up more than 300 times.
Replaces most of CR123A primary Lithium battery for digital cameras/flashlights.
Do not charge the battery cells in other brand RCR123A battery charger.
Open circuit voltage of RCR123A (3.0V) is much higher than primary Lithium battery (3.0V). It may burn certain bulb of flashlight. Please make sure your device can accept 4.5V voltage before use.
Internal voltage regulators modified voltage to achieve average working voltage of 3.0V.
Internal over-charge & over-discharge protection. The current will be shut off when the battery voltage drops below 2.0V.
These batteries reach more than 3.0v at full charge, should only be used in high quality CREE LED flashlights.

Compatibility Warning
-NOT compatible with Surefire type Flashlights
-NOT compatible with vaporizers/e-Cig
-NOT compatible with Arlo Security Camera Systems

WARNING - MUST READ BEFORE USE:
-Charger is ONLY intended for Tenergy Li-Ion RCR123A 600mah 3.0V (Part Number 30264) rechargeable batteries.
-DO NOT charge Lithium (non-rechargeable) CR123A batteries.
-DO NOT charge LiFePO4 RCR123A 400mAh Batteries.
-NOT compatible with Arlo Li-ion Rechargeable Batteries.
Note: This charger is designed to work with button top rechargeable batteries, does not work with flat top batteries.