{"product_id":"keeppower-18650-4000ld-li-ion-rechargeable-battery-cell","title":"Keeppower 18650-4000LD Li-ion Rechargeable Battery Cell","description":"The Keeppower 18650-4000LD is a high-performance lithium-ion rechargeable battery cell, engineered for devices that demand reliable, long-lasting power. With a substantial nominal capacity of 4000mAh and a nominal voltage of 3.6V, it provides extended runtimes for a wide range of applications.\u003cbr\u003e\n\u003cbr\u003e\nThis 18650 cell supports a continuous maximum discharge current of 4A, making it suitable for moderate to high-drain devices. It offers a wide operating temperature range, with safe discharge from -40°C to +60°C, ensuring dependable performance in various environments.\u003cbr\u003e\n\u003cbr\u003e\nDesigned for longevity, the 18650-4000LD maintains over 70% of its initial capacity after 500 charge cycles**. The battery includes standard safety protections and is built to strict specifications, weighing just 50g with maximum dimensions of 18.5mm by 65.3mm. Please note that it requires a CC-CV charging method with a 4.20V charging voltage and adheres to all standard lithium-ion safety precautions for handling and use.\u003cbr\u003e\n \n\u003cdiv\u003e●  Model: 18650-4000LD\u003c\/div\u003e\n\n\u003cdiv\u003e●  Nominal Capacity: 4000mAh\u003cbr\u003e\n●  Minimum Capacity: 3900mAh\u003cbr\u003e\n●  Nominal Voltage: 3.6V\u003cbr\u003e\n●  Charging Method: CC-CV\u003cbr\u003e\n●  Charging Voltage: 4.20V\u003cbr\u003e\n●  Cut Off Voltage: 2.5V\u003cbr\u003e\n●  Standard Charging Current: 800mA\u003cbr\u003e\n●  Standard Discharging Current: 800mA\u003cbr\u003e\n●  Continuous Maximum Discharge Current: 4A\u003cbr\u003e\n●  Weight: 50g\u003cbr\u003e\n●  Maximum Dimensions: (D)18.5*(L)65.3mm\u003cbr\u003e\n●  Temperature\u003cbr\u003e\nCharge: 0 to +45° C\u003cbr\u003e\nDischarge: -40 to +60° C\u003cbr\u003e\nStorage: -20 to +45° C Less than 1 month\u003cbr\u003e\n-20 to +30° C Less than 12 month\u003cbr\u003e\n●  Cycle Life: 500th cycle＞70% capacity of 1st cycles\u003c\/div\u003e\n","brand":"Keeppower","offers":[{"title":"1pcs","offer_id":47514856194197,"sku":"18650-4000LD-1pcs","price":13.99,"currency_code":"USD","in_stock":true},{"title":"2pcs","offer_id":47514856226965,"sku":"18650-4000LD-2pcs","price":26.99,"currency_code":"USD","in_stock":true},{"title":"4pcs","offer_id":47514856259733,"sku":"18650-4000LD-4pcs","price":52.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0629\/7039\/6821\/files\/3bad10d4ce70a99f80f97e014a6b5fac.jpg?v=1782900406","url":"https:\/\/flashlightgo.com\/products\/keeppower-18650-4000ld-li-ion-rechargeable-battery-cell","provider":"flashlightgo","version":"1.0","type":"link"}