{"product_id":"protected-rechargeable-battery-7-4v-8-8-14ah-for-magicshine-bike-light-led-flashlight-headlight-power-supply","title":"7.4V Li-ion Rechargeable Battery Pack 8800-14000mAh 2S4P with PCM for Bike Light Flashlight Headlight","description":"\u003ch2\u003e7.4V Li-ion Rechargeable Battery Pack (2S4P) with PCM Protection\u003c\/h2\u003e\n\u003cp\u003eHigh-capacity 7.4V lithium-ion battery pack designed for Magicshine bike lights, LED flashlights, headlights, and other 7.4V DC-powered devices. Built with premium 18650 cells in a 2S4P configuration, featuring a built-in Protection Circuit Module (PCM) for safe and reliable operation.\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0732\/9133\/3821\/files\/7-4v-li-ion-battery-pack-mountain-cycling-scene.png?v=1781093358\" alt=\"7.4V Li-ion Battery Pack - Mountain Cycling Scene\"\u003e\u003c\/p\u003e\n\u003ch3\u003eApplications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eMagicshine series bike lights (MJ-900, MJ-906, MJ-908, MJ-902, etc.)\u003c\/li\u003e\n\u003cli\u003eLED flashlights and tactical lights\u003c\/li\u003e\n\u003cli\u003eBicycle headlights and tail lights\u003c\/li\u003e\n\u003cli\u003eOutdoor headlamps and camping lanterns\u003c\/li\u003e\n\u003cli\u003ePortable power supply for 7.4V DC devices\u003c\/li\u003e\n\u003cli\u003ePhotography equipment and video lights\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eKey Specifications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eNominal Voltage:\u003c\/strong\u003e 7.4V (2S)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCapacity Options:\u003c\/strong\u003e 8800mAh \/ 10400mAh \/ 12000mAh \/ 13200mAh \/ 14000mAh\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eConfiguration:\u003c\/strong\u003e 2S4P (8 cells in 2-series 4-parallel)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eConnector:\u003c\/strong\u003e DC 5.5\/2.1mm (center positive)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDimensions:\u003c\/strong\u003e 36 × 36 × 136 mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCell Diameter:\u003c\/strong\u003e 18.0 ± 0.7 mm per cell\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCell Height:\u003c\/strong\u003e 65.0 ± 1.0 mm per cell\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCell Packaging:\u003c\/strong\u003e PVC heat shrink tube\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePCM:\u003c\/strong\u003e Built-in Protection Circuit Module\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCondition:\u003c\/strong\u003e Brand New\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003ePCM Protection Functions\u003c\/h3\u003e\n\u003cp\u003eThe built-in Protection Circuit Module (PCM) provides comprehensive safety protection:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eOver-charge protection\u003c\/li\u003e\n\u003cli\u003eOver-discharge protection\u003c\/li\u003e\n\u003cli\u003eShort circuit protection\u003c\/li\u003e\n\u003cli\u003eOver-current protection\u003c\/li\u003e\n\u003cli\u003eReverse charge protection\u003c\/li\u003e\n\u003cli\u003eOver-heat protection\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eOperating Environment\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eCharging Temperature:\u003c\/strong\u003e 0°C to 45°C (32°F to 113°F)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDischarging Temperature:\u003c\/strong\u003e -20°C to 60°C (-4°F to 140°F)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStorage Temperature:\u003c\/strong\u003e -10°C to 35°C (14°F to 95°F)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHumidity:\u003c\/strong\u003e Keep dry; avoid use in rain or high-humidity environments without waterproof protection\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAltitude:\u003c\/strong\u003e Suitable for general outdoor use; performance may decrease at extreme altitudes\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eInstallation Instructions\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eConnect the DC 5.5\/2.1mm plug to your device's power input port — ensure center pin is positive (+)\u003c\/li\u003e\n\u003cli\u003eVerify your device accepts 7.4V input before connecting\u003c\/li\u003e\n\u003cli\u003eDo not force the connector; align properly before inserting\u003c\/li\u003e\n\u003cli\u003eUse a compatible Li-ion charger rated for 2S (8.4V max charge voltage) to recharge the battery\u003c\/li\u003e\n\u003cli\u003eDo not mix with other battery packs or connect in series\/parallel without proper knowledge\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eStorage Precautions\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eStore at 40–60% charge level for long-term storage (3 months or more)\u003c\/li\u003e\n\u003cli\u003eStore in a cool, dry place away from direct sunlight and heat sources\u003c\/li\u003e\n\u003cli\u003eKeep away from flammable materials and metal objects that may cause short circuits\u003c\/li\u003e\n\u003cli\u003eDo not store in temperatures below -10°C or above 35°C\u003c\/li\u003e\n\u003cli\u003eRecharge every 3–6 months during long-term storage to prevent over-discharge\u003c\/li\u003e\n\u003cli\u003eKeep out of reach of children\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003ePackage Contents\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e1 × 7.4V Li-ion Battery Pack (2S4P)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eSafety Information\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eCharging:\u003c\/strong\u003e Use only a compatible Li-ion charger with 8.4V max output. Never leave charging unattended for extended periods. Stop charging immediately if the battery becomes excessively hot, swells, or emits unusual odors.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eStorage:\u003c\/strong\u003e Store in a fireproof container or Li-ion safety bag when not in use for extended periods. Never store in a fully discharged state.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eOperation:\u003c\/strong\u003e Do not puncture, crush, disassemble, or expose to fire. Do not short-circuit the terminals. Discontinue use if the battery shows signs of damage, swelling, or leakage.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eTemperature:\u003c\/strong\u003e Do not charge or discharge outside the specified temperature range. Extreme temperatures reduce performance and may cause safety hazards.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDisposal:\u003c\/strong\u003e Do not dispose of in regular household waste. Recycle at designated battery collection points in accordance with local regulations.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eInspection:\u003c\/strong\u003e Inspect the battery before each use. Do not use if the casing is cracked, the connector is damaged, or the battery appears swollen.\u003c\/p\u003e\n\u003ch3\u003eShipping \u0026amp; Transportation Notice\u003c\/h3\u003e\n\u003cp\u003eThis product contains lithium-ion cells and is classified as a \u003cstrong\u003edangerous good (Class 9)\u003c\/strong\u003e for transportation purposes.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eAir Transport:\u003c\/strong\u003e Subject to IATA regulations. May be restricted or prohibited on certain air routes. Please check with your carrier before ordering for air shipment.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePackaging:\u003c\/strong\u003e Shipped in compliance with UN38.3 testing standards and applicable dangerous goods packaging requirements.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDelivery Time:\u003c\/strong\u003e Due to customs and carrier restrictions on lithium batteries, delivery may take longer than standard shipments.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDocumentation:\u003c\/strong\u003e Required safety data sheets and dangerous goods declarations are included with shipment where required.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"FMA Battery","offers":[{"title":"Li-ion 8800mAh","offer_id":46917366874301,"sku":"FL8800-FMA86C2S4PE","price":39.7,"currency_code":"USD","in_stock":true},{"title":"Li-ion 10400mAh","offer_id":46917366907069,"sku":"FL10400-FMA86C2S4PB","price":33.52,"currency_code":"USD","in_stock":true},{"title":"Li-ion 12000mAh","offer_id":46917366939837,"sku":"FL12000-30Q86C2S4PE","price":54.95,"currency_code":"USD","in_stock":true},{"title":"Li-ion 14000mAh Panasionic cell","offer_id":46917366972605,"sku":"FL14000-PGA86C2S4PE","price":51.96,"currency_code":"USD","in_stock":true},{"title":"Li-ion 13200mAh","offer_id":46917367005373,"sku":"FL13200-FMA86C2S4PB","price":37.95,"currency_code":"USD","in_stock":true},{"title":"Li-ion 14000mAh FMA","offer_id":46917367038141,"sku":"FL14000-FMA86C2S4PB","price":42.38,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0732\/9133\/3821\/files\/Scd1118886dfd47d4ad0a830ca3111603H.webp?v=1781084481","url":"https:\/\/fmabattery.com\/products\/protected-rechargeable-battery-7-4v-8-8-14ah-for-magicshine-bike-light-led-flashlight-headlight-power-supply","provider":"fmabattery","version":"1.0","type":"link"}