High performance rechargeable RCR123A battery from Nitecore specially designed for high drain devices like the Nitecore EC11 and other high power LED search light and tactical flashlights.
A safe, environmentally-friendly, high-performance RCR123 Cell
 
Internal Safety Features:
1. Microporous barrier protects delicate internal components.
2. Pressure relief valve activates in the event of a rapid temperature increase
3. Built-in PTC to inhibit high current surges
4. Innovative anode design with high temperature resistance
 
External Safety Features:
1. Equipped at both ends with a nickel-plated S.S protector ensuring high impact resistance, good electrical conductivity and oxidation resistance 
2. Tough plastic circuit board protector 
3. Coated with durable metallic film to guard against abrasion
 
Purpose-designed high-performance protected circuit:
1. Automatically protects against overcharge, over discharge and short-circuiting
2. Utilises a high-quality battery protection IC from Seiko Instruments Japan
3. Utilises high-power MOS-FEE in the current regulation module for better efficiency and superior output
 
High capacity and high performance:
- Actual measured capacity is approximately 650mAh
- High output current of up to 4A makes NL166 compatible with various kinds of high-drain devices
- Positive end is a standard button size allowing maximum equipment compatibility.
- Compatible with most brands of flashlights
Low cost and environmentally friendly
- A NL166 battery can be recharged over 500 times, the equivalent of 500xCR123 batteries
 
Specifications:
Maximum continuous discharge current: 6.5A
Capacity: 650mAh
Voltage: 3.7V
2.4 Wh
Weight: 17.8g
Size: Diameter 16.6mm, Length 34.8mm