NITECORE NL1475R Rechargeable Battery The NITECORE NL1475R is a 750mAh 14500 micro-USB rechargeable battery that's compatible with multiple 14500 flashlights, headlamps and other electronic powered devices. No charger is needed to recharge this battery, it's equipped with a built-in micro-USB port that allows users to charge the battery directly using any compatible USB power source. Yet, the battery does have the ability to recharge using a traditional charger providing multiple recharge options for users. The NL1475R is equivalent to 500 pairs of non-rechargeable batteries and has a life span of over 500 recharge cycles, helping to reduce the cost of energy to users over time. The battery boasts multiple external safety mechanisms like a microporous barrier to defend internal components and a pressure relief valve to protect against rapid temperature increases and explosions. A built-in high-performance protection circuit protects the battery from overcharging, over discharging and short-circuiting to prevent damage and prolong battery life. NITECORE NL1475R Specifications Battery Type: 14500 Capacity: 750mAh Output: 2A Voltage: 3.6V Length: 1.95" (49.5mm) Diameter: 0.56" (14.2mm) Weight: 0.66oz (18.6g) NITECORE NL1475R Features Integrated micro-USB charging port Compatible with traditional battery chargers Pressure relief valve protection for rapid temperature increases Microporous barrier to protect internal components High performance protected circuit automatically protects against overcharge, over discharge and short-circuiting Nickel-plated stainless steel protectors Certified by International Standards