Nitecore NL1840R Battery - 4000mAh - USB-C Rechargeable 18650 -Performance-Protected Li-ion Battery

FEATURES: ***Capacity Breakthrough - 4000mAh 18650 Li-ion Battery -Collaboratively developed by NITECORE and its industry partner, It features an energy density of 288mWh/g and a high capacity of 4,000mAh (14.4Wh), which is 17.6% higher than conventional 18650 Li-ion batteries - equivalent to four CR123A batteries. ***USB-C Rechargeable -Fully Charged: Green Constant-on -Charging: Red Constant-on ***Dual Charging Ways -Charge via a USB-C Charging Cable or an External Charger ***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 ***Purpose-designed High Performance 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 ***External Safety Features -Equipped at both ends with a nickel-plated stainless steel protector ensuring high impact resistance, good electrical conductivity and oxidation resistance -Coated with durable metallic film to guard against abrasion ***Mercury Free, Lead Free and Cadmium Free -For safe use and storage ***≥500 Full Charging Cycles -Low Cost and Environmentally Friendly -Retains over 80% of its capacity after 500 charging cycles. ***Safe and Reliable -Globally insured and multiple global certifications approved SPECIFICATIONS: *Capacity:4,000mAh 3.6V (14.4Wh) *Diameter:18.5mm±0.3mm / 0.73"±0.01" *Length:71.0mm±0.3mm / 2.80"±0.01" *Weight:51g / 1.80 oz *Charging Port:USB-C PACKAGE CONTENTS: 1xNitecore NL1840R Battery