Nitecore NL166 RCR123A / 16340 650mAh 3.7V Protected Lithium Ion (Li-ion) Button Top Battery - Blister Pack

Item #: NITECORE-NL166
Brand: Nitecore
Item #: NITECORE-NL166
Brand: Nitecore
  • High performance protection circuit prevents protection from overcharge and over discharge increasing the lifespan of your battery
  • Capable of 500 recharge cycles for a cost effective and environmentally friendly battery choice
  • The perfect battery for high drain devices like LED flashlights, video game consoles, and more
  • Nickel-plated S.S. protectors at both ends provide high impact resistance and oxidation resistance to protect the delicate circuits inside

Nitecore NL166 RCR123A

Rechargeable CR123A Battery

The Nitecore N166 RCR123A Battery is a highly capable Lithium-Ion battery designed specifically for high performance electronics. These powerful RCR123A batteries deliver an impressive 3.7 Volts of power and can hold a charge of up to 650 mAh, making them perfect for high drain devices such as LED flashlights, video game consoles, cameras, appliances, and more. The cells come standard with a high-performance protection circuit that provides overcharge and over-discharge protection, safeguarding themselves from possible internal damage that could lower their capacity, ensuring they last as long as possible. The NL166 is capable of being recharged more than 500 times, making it both cost effective and environmentally friendly.

Safety First

Just as impressive as the NL166's power is its sophisticated safe design. The RCR123A batteries are equipped with a nickel-plated S.S. protectors at both ends to provide high impact resistance, good electrical conductivity and oxidation resistance. To prevent abrasions and other external damage, the NL166 cells are coated with a durable metallic film, while its circuit board is coated with an ultra tough plastic. The cell's innovative anode is designed to resist high temperatures, while a micro-porous barrier within the battery protects its delicate internal components. The battery even features a specialized pressure relief valve that activates if the battery experiences a rapid temperature increase.


  • Built-in high-performance protection circuit prevents overcharging / over-discharging
  • Nickel-plated S.S. connectors on both ends for superior impact resistance, electrical conductivity, and oxidation resistance
  • Durable metallic film coating protects against abrasions and other external damage
  • Pressure relief valve activates in the event of rapid temperature increase


  • Battery Size: RCR123A (16340)
  • Battery Chemistry: Lithium Ion (Li-Ion)
  • Voltage: 3.7V
  • Capacity: 650 mAh
  • Max Charging Current: 650mA
  • Recommended Charging Current: 300 mA
  • Max Discharge Current: 4A
  • Estimated Charge Cycles: 500 cycles
  • Diameter: 0.65" (16.6mm)
  • Height: 1.37" (34.8mm)
  • Weight: 0.62 oz (17.8g)
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