{"product_id":"surefire-sf18650b-rechargeable-18650-lithium-ion-battery-with-micro-usb-charging-3-6v-3500mah","title":"SureFire SF18650B Rechargeable 18650 Lithium-ion Battery with Micro-USB Charging, 3.6V 3500mAh","description":"\u003cdiv\u003e\n\u003ch2\u003eProduct Description\u003c\/h2\u003e\n\u003cp\u003eThe SureFire SF18650B is a protected 18650 lithium‑ion rechargeable battery designed for dependable performance in high‑drain devices. It features a built‑in Micro‑USB charging port, so you can charge directly from common USB power sources without a separate cradle. Dual LED indicators show charging status (red for charging, green for fully charged). With a rated capacity of 3,500 mAh and an 8–10A discharge rate, the SF18650B delivers extended runtime and reliable output for compatible SureFire lights including FURY‑DFT, FURY‑IB‑DF, EDC2‑DFT, M600DF, M640DF, M640DFT and P1R series. A Micro‑USB to USB cable is included, and the cell can also be charged in a compatible CC‑CV 18650 cradle (not included).\u003c\/p\u003e\n\u003ch3\u003eProduct Highlights\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eBuilt‑in Micro‑USB charging—no external cradle required; includes charging cable\u003c\/li\u003e\n\u003cli\u003eHigh‑capacity 3,500 mAh cell optimized for extended flashlight runtime\u003c\/li\u003e\n\u003cli\u003eProtected 18650 design with 8–10A discharge rate for high‑drain LED lights\u003c\/li\u003e\n\u003cli\u003eDual LED indicators provide clear charging status feedback\u003c\/li\u003e\n\u003cli\u003eCompatible with select SureFire models: FURY‑DFT, FURY‑IB‑DF, EDC2‑DFT, M600DF, M640DF\/M640DFT, and P1R series\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eSpecs\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eType: Protected 18650 rechargeable battery\u003c\/li\u003e\n\u003cli\u003eChemistry: Lithium‑ion\u003c\/li\u003e\n\u003cli\u003eNominal Voltage: 3.6 V (charge end voltage 4.2 V)\u003c\/li\u003e\n\u003cli\u003eRated Capacity: 3.5 Ah (3,500 mAh)\u003c\/li\u003e\n\u003cli\u003eEnergy: 12.6 Wh\u003c\/li\u003e\n\u003cli\u003eDischarge Rate: 8–10 A\u003c\/li\u003e\n\u003cli\u003eDischarge End Voltage: 2.50 V\u003c\/li\u003e\n\u003cli\u003eUSB Charge Voltage: 5.0 V ± 0.2 V\u003c\/li\u003e\n\u003cli\u003eUSB Charge Current: 600 mA ± 100 mA\u003c\/li\u003e\n\u003cli\u003eTypical Charge Time: ~5 hours from flashlight cutoff; up to 8+ hours if fully depleted\u003c\/li\u003e\n\u003cli\u003eDimensions: 69.4 x 18.6 mm\u003c\/li\u003e\n\u003cli\u003eWeight: 1.7 oz (49 g)\u003c\/li\u003e\n\u003cli\u003eOperating Temp Range (Charging): 0–45 °C, 65% ±25% RH\u003c\/li\u003e\n\u003cli\u003eOperating Temp Range (Discharging): −20 °C to +60 °C, 65% ±25% RH\u003c\/li\u003e\n\u003cli\u003eStorage Temp Range: 0–35 °C, 60% ±25% RH\u003c\/li\u003e\n\u003cli\u003eCertifications: CE, PSE, UN38.3\u003c\/li\u003e\n\u003cli\u003eLithium Content: 1.05 g\u003c\/li\u003e\n\u003cli\u003eIncluded: Micro‑USB to USB charging cable\u003c\/li\u003e\n\u003cli\u003eCompatibility: FURY‑DFT, FURY‑IB‑DF, EDC2‑DFT, M600DF, M640DF, M640DFT, P1R series\u003c\/li\u003e\n\u003cli\u003eCountry of Manufacture: China\u003c\/li\u003e\n\u003cli\u003eUPC: 084871328050\u003c\/li\u003e\n\u003cli\u003eManufacturer Part Number: SF18650B\u003c\/li\u003e\n\u003cli\u003eBrand Name: SureFire\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cem\u003eDisclaimer: We strive to provide accurate and up-to-date product descriptions, specifications, and images; however, errors or omissions may occasionally occur. We are not responsible for any inaccuracies or discrepancies in the content provided. If you notice anything incorrect or unclear, please contact us so we can correct it. When in doubt, we recommend verifying details directly with the product’s manufacturer.\u003c\/em\u003e\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Surefire","offers":[{"title":"Default Title","offer_id":44068174856314,"sku":"FLX-136934","price":35.98,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1679\/0365\/files\/268654469.png?v=1765546982","url":"https:\/\/tlooutdoors.com\/products\/surefire-sf18650b-rechargeable-18650-lithium-ion-battery-with-micro-usb-charging-3-6v-3500mah","provider":"TLO Outdoors","version":"1.0","type":"link"}