Nitecore NL1840AW Battery - All Weather Li-ion 18650 Battery - (-40°)C Operable - 4000mAh - IPX6

FEATURES: ***Defy Extreme Cold Always Ready -No more power drops or failures in freezing temperatures. -It delivers continuous power at -40° C (-40° F), ensuring reliable illumination in extreme cold environments. ***Stable Performance Even at 10000m Altitude -Fearless of extreme low-pressure environments at 10,000m, it delivers stable power throughout your ascent, helping you summit every peak on Earth. ***IPX6 Water Resistance -Ready for demanding outdoor conditions, delivering reliable protection when facing rain, snow, and unexpected weather conditions. ***Protected Circuit  -Effectively protects against overcharge, over-discharge and short-circuiting  -Utilizes a high-quality battery protection IC  -Utilizes high-power MOS-FET in the current regulation module for better efficiency and superior output ***Internal Safety Features ◦ Pressure relief valve activated in the event of a rapid temperature increase ◦ Built-in intelligent protective circuit of the positive polarity protects against overcharge, over-discharge and short-circuiting ***High Capacity 4000mAh -Jointly developed with industry partners, the NL1840AW achieves an ultra-high energy density of 288mWh/g and a capacity of 4,000mAh (14.4Wh). Compared with conventional 18650 Li-ion batteries, it offers approximately 17.6% higher capacity. The 14.4Wh energy output is equivalent to approximately four CR123A batteries. ***≥ 500 Full Charge Cycles -An NL1840AW all-weather Li-ion battery supports over 500 charge cycles for cost-effective use. ***Safe and Reliable -Globally insured and multiple global certifications approved ***External Safety Features  -Nickel-plated steel protectors at both ends ensure high impact and oxidation resistance, safeguarding the battery contacts.  -Integrated injection-molded positive terminal design provides water and impact resistance, effectively reducing short-circuit risks and protecting the battery. SPECIFICATIONS: *Model:NL1840AW *Capacity:4,000mAh 3.6V (14.4Wh) *Continuous Discharge Current:10A *Length:69.8±0.3mm *Diameter:18.6±0.3mm *Weight:51g / 1.80 oz *IP Rating:IPX6 *Chemistry:Li-ion NMC Battery *Cold Resistance:-40°C (-40°F) *Operable Altitude:10000m *IP Rating:IPX6 PACKAGE CONTENTS: 1xNitecore NL1840AW Battery