Description
Description
The Nitecore NL166 Rechargeable Battery (RCR123A) is a high-performance, rechargeable Li-ion battery designed for compact flashlights, tactical gear, cameras, and other electronic devices requiring RCR123A/16340 cells. With a nominal voltage of 3.6 V and a capacity of 650 mAh, it delivers reliable power for high-drain devices while maintaining a lightweight and compact form factor. Its built-in protection circuit safeguards against overcharge, over-discharge, and short circuits, ensuring safe operation. Compatible with a wide range of Nitecore smart chargers, the NL166 offers convenience, efficiency, and durability for users who need dependable portable power.
Tech Specs
| Brand / Model | Nitecore NL166 (RCR123A) |
| Battery Type | Rechargeable Li-ion protected cell |
| Nominal Voltage | 3.6 V |
| Full Charge Voltage | 4.2 V ± 0.05 V |
| Capacity | Approx. 650 mAh |
| Max Discharge Current | 4 A |
| Dimensions | 16.6 mm × 34.8 mm |
| Weight | Approx. 17.8 g |
| Compatibility | Supports devices using RCR123A / 16340 Li-ion batteries; compatible with Nitecore smart chargers (D2, D4, SC4, Q6, UM2, CI4, UMS2/4) |
| Features | Built-in protection circuit, high-drain capable, lightweight and compact, reliable performance, rechargeable up to 500+ cycles |
| Design | Compact cylindrical battery suitable for flashlights, cameras, tactical gear, and portable electronics |
| Charging | Use with Nitecore smart chargers supporting RCR123A/16340 cells |
| Warranty Terms: | No Warranty – replacement available if battery is found defective within 5 working days. |
★ ★ ★ ★ ★ 4.7 out of 5 “This battery is compact but delivers surprisingly consistent power for my flashlight. I love that it’s rechargeable and works with my Nitecore D2 charger. Safe, reliable, and long-lasting — perfect for my gear.” — Verified user