Are you looking for a reliable and long-lasting battery to power your devices? Look no further than our 100% real-world capacity 21700 3.7V 5000mAh Rechargeable Lithium-Ion Flat Top Battery With its large capacity and flat top design, this battery is perfect for powering high-drain devices like flashlights and car battery components. And its high-quality lithium-ion construction means it provides exceptional performance and long-lasting power. Plus, with its form factor of 21700, this battery is compatible with a wide range of devices and is easy to install and use. So why wait? Upgrade your device and power it with the best - order your 21700 3.7V 5000mAh rechargeable lithium-ion battery today Dear Buyer Friend, Hello Thank you so much for choosing to buy this battery product from our store. Our batteries are of excellent quality, safe and durable. Be sure to place your order. Thank you. The modes of transportation for the package are delivery and air freight, with a delivery time of about 25-45 days. describe 100% true capacity 21700 3.7V 5000mAh rechargeable lithium-ion battery with flat top, used for flashlights and car battery components Model: 21700 Battery weight: 70 grams Battery material: lithium-ion lithium-ion battery Rated capacity: 5000mAh Rated voltage: 3.6V Max rotation: 4.2 volts Maximum continuous discharge current: 3C 15A Protected: None, unprotected Approximate dimensions: 21mm x 70mm Nominal voltage: 3.2 volts Charging voltage: 3.65 volts Breaking voltage: 2.0 volts Internal resistance: ≤ 30 meters Ω Standard charging current: 0.5 degrees Celsius Standard discharge current: 1C Maximum charging current: 1C Maximum continuous discharge current: 3C Maximum pulse discharge current: 5C working temperature Charging: 0°60°C Discharge: -20~60°C Connection: Other, Usage: Other Very concerned chemical: Nickel (metallic), Battery number: 2-16 Size: 21700, Replacement Battery: Yes Set Type: Charger, Type: Li-Ion Rated Capacity: 5000mAh, Model Number: 21700 3.7V 5000mAh Brand Name: POLENGHI, Origin: China