{"product_id":"32700-lifepo4-battery-pack-6-4v-20000mah-2s4p-4plus4","title":"32700 LiFePO4 Battery Pack 6.4V 20000mAh (2S4P 4+4 Layout) with Protection Board – Pre-wired Red\/Black Leads (No Connector) for 6V Devices, Solar Storage \u0026 DIY Projects","description":"\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cstrong\u003e\u003cspan class=\"\"\u003eSafe 6.4V power in a compact 4+4 layout, with quadruple the capacity for your 6V devices and DIY projects.\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cspan class=\"\"\u003eThis \u003c\/span\u003e\u003cstrong\u003e\u003cspan class=\"\"\u003e32700 LiFePO4 (Lithium Iron Phosphate) Battery Pack\u003c\/span\u003e\u003c\/strong\u003e\u003cspan class=\"\"\u003e features eight large-format cells arranged in a 2S4P configuration (2 in series, 4 in parallel) in a staggered 4+4 layout. It delivers a stable \u003c\/span\u003e\u003cstrong\u003e\u003cspan class=\"\"\u003e6.4V nominal voltage\u003c\/span\u003e\u003c\/strong\u003e\u003cspan class=\"\"\u003e (7.3V full charge) and a massive \u003c\/span\u003e\u003cstrong\u003e\u003cspan class=\"\"\u003e20000mAh capacity\u003c\/span\u003e\u003c\/strong\u003e\u003cspan class=\"\"\u003e.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cspan class=\"\"\u003eUnlike standard 3.7V Li-ion cells, LiFePO4 chemistry offers superior thermal stability, an ultra-long cycle life, and a much lower risk of fire or explosion. The 32700 form factor (approx. 32mm diameter per cell) is ideal for replacing 4-cell AA\/alkaline battery packs (6V) in solar lights, toys, portable devices, and custom 6V projects. The 4+4 layout creates a compact, square-like footprint (130x142mm), making it ideal for tighter enclosures where a long inline pack won't fit. It comes fully assembled with a built-in \u003c\/span\u003e\u003cstrong\u003e\u003cspan class=\"\"\u003eprotection board (BMS)\u003c\/span\u003e\u003c\/strong\u003e\u003cspan class=\"\"\u003e and pre-wired with red (positive) and black (negative) leads. \u003c\/span\u003e\u003cstrong\u003e\u003cspan class=\"\"\u003eNote: The wire ends are bare (no connector attached).\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cstrong\u003e\u003cspan class=\"\"\u003e CRITICAL WARNING: Voltage Compatibility\u003c\/span\u003e\u003c\/strong\u003e\u003cspan class=\"\"\u003e\u003c\/span\u003e\u003cbr\u003e\u003cspan class=\"\"\u003eThis is a \u003c\/span\u003e\u003cstrong\u003e\u003cspan class=\"\"\u003e2S LiFePO4 battery (6.4V nominal)\u003c\/span\u003e\u003c\/strong\u003e\u003cspan class=\"\"\u003e. You \u003c\/span\u003e\u003cstrong\u003e\u003cspan class=\"\"\u003eMUST\u003c\/span\u003e\u003c\/strong\u003e\u003cspan class=\"\"\u003e use a dedicated LiFePO4 charger with a \u003c\/span\u003e\u003cstrong\u003e\u003cspan class=\"\"\u003e7.3V cutoff\u003c\/span\u003e\u003c\/strong\u003e\u003cspan class=\"\"\u003e. Never use a standard 2S Li-ion charger (8.4V) or a single-cell charger, as it will overcharge the battery and cause permanent damage or fire.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan class=\"\"\u003eKey Features\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cstrong\u003e\u003cspan class=\"\"\u003eLiFePO4 Chemistry:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan class=\"\"\u003e High thermal stability, excellent safety, and an ultra-long cycle life.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cstrong\u003e\u003cspan class=\"\"\u003e2S4P Configuration (6.4V \/ 20000mAh):\u003c\/span\u003e\u003c\/strong\u003e\u003cspan class=\"\"\u003e Offers both the 6V voltage you need and quadruple the capacity for exceptionally long runtime.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cstrong\u003e\u003cspan class=\"\"\u003eCompact 4+4 Layout:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan class=\"\"\u003e Space-saving rectangular design (approx. 130mm x 142mm) ideal for tighter enclosures.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cstrong\u003e\u003cspan class=\"\"\u003eBuilt-in Protection Board (BMS):\u003c\/span\u003e\u003c\/strong\u003e\u003cspan class=\"\"\u003e Protects against overcharge, over-discharge, over-current, and short circuits.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cstrong\u003e\u003cspan class=\"\"\u003ePre-wired Leads:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan class=\"\"\u003e Comes with red (+) and black (-) wires. \u003c\/span\u003e\u003cstrong\u003e\u003cspan class=\"\"\u003eNo connector is attached\u003c\/span\u003e\u003c\/strong\u003e\u003cspan class=\"\"\u003e (bare wire ends).\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan class=\"\"\u003eParameters\u003c\/span\u003e\u003c\/h3\u003e\n\u003cdiv class=\"ds-scroll-area ds-scroll-area--show-on-focus-within ds-scroll-area--enabled _1210dd7 c03cafe9\"\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003e\u003cspan class=\"\"\u003eParameter\u003c\/span\u003e\u003c\/th\u003e\n\u003cth\u003e\u003cspan class=\"\"\u003eSpecification\u003c\/span\u003e\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan class=\"\"\u003eCell Type\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan class=\"\"\u003e32700 LiFePO4 (Lithium Iron Phosphate)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan class=\"\"\u003eConfiguration\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan class=\"\"\u003e2S4P (8 cells: 2 series, 4 parallel, 4+4 layout)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan class=\"\"\u003eNominal Voltage\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan class=\"\"\u003e6.4V\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan class=\"\"\u003eFull Charge Voltage\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan class=\"\"\u003e7.3V\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan class=\"\"\u003eNominal Capacity\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan class=\"\"\u003e20000mAh (20Ah)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan class=\"\"\u003eProtection Board\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan class=\"\"\u003eYes (Overcharge, Over-discharge, Short circuit)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan class=\"\"\u003eWiring\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan class=\"\"\u003eRed (+), Black (-)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan class=\"\"\u003eConnector\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003e\u003cspan class=\"\"\u003eNone (Bare wire ends)\u003c\/span\u003e\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan class=\"\"\u003eDimensions\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan class=\"\"\u003eApprox. 130mm (W) x 64mm (D) x 142mm (H)*\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan class=\"\"\u003eWeight\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan class=\"\"\u003eApprox. 1200g\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cem\u003e\u003cspan class=\"\"\u003e*Dimensions are approximate and include the protection board and heat shrink wrap. Please allow ±1-2mm tolerance.\u003c\/span\u003e\u003c\/em\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan class=\"\"\u003eApplications\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cstrong\u003e\u003cspan class=\"\"\u003eRecommended For:\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cstrong\u003e\u003cspan class=\"\"\u003e6V Solar Lights:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan class=\"\"\u003e The ideal replacement battery for outdoor solar path lights and lawn lamps requiring longer runtime.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cstrong\u003e\u003cspan class=\"\"\u003e6V Devices:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan class=\"\"\u003e Perfect replacement for devices using 4x AA\/alkaline batteries (4x 1.5V = 6V).\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cstrong\u003e\u003cspan class=\"\"\u003eDIY 6.4V Projects:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan class=\"\"\u003e Custom electronics requiring a stable 6V-6.4V power source.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cstrong\u003e\u003cspan class=\"\"\u003eEmergency Lighting:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan class=\"\"\u003e Reliable, safe power for low-drain emergency lamps.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cstrong\u003e\u003cspan class=\"\"\u003eNot Recommended For:\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cstrong\u003e\u003cspan class=\"\"\u003eDevices Requiring 7.4V\/8.4V:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan class=\"\"\u003e This battery will not work properly in standard 2S Li-ion devices due to the lower voltage.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cstrong\u003e\u003cspan class=\"\"\u003eStandard Flat Battery Bays:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan class=\"\"\u003e Due to the 4+4 rectangular shape, please measure your enclosure carefully to ensure it fits.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cstrong\u003e\u003cspan class=\"\"\u003eStandard Li-ion Chargers:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan class=\"\"\u003e Never charge this with an 8.4V or 4.2V charger.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan class=\"\"\u003eFAQ\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cstrong\u003e\u003cspan class=\"\"\u003eQ1: Can I use my standard 2S Li-ion charger (8.4V) for this battery?\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cspan class=\"\"\u003eA: \u003c\/span\u003e\u003cstrong\u003e\u003cspan class=\"\"\u003eNO.\u003c\/span\u003e\u003c\/strong\u003e\u003cspan class=\"\"\u003e You must use a dedicated LiFePO4 charger with a 7.3V cutoff. Using an 8.4V charger will overcharge and damage the battery, potentially causing a fire.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cstrong\u003e\u003cspan class=\"\"\u003eQ2: Why is the voltage 6.4V? I thought 2S was 7.4V.\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cspan class=\"\"\u003eA: This is a \u003c\/span\u003e\u003cstrong\u003e\u003cspan class=\"\"\u003eLiFePO4\u003c\/span\u003e\u003c\/strong\u003e\u003cspan class=\"\"\u003e battery, not a standard Li-ion battery. LiFePO4 cells have a nominal voltage of 3.2V (3.2V x 2 = 6.4V), with a max charge of 7.3V. Standard Li-ion is 3.7V\/4.2V.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cstrong\u003e\u003cspan class=\"\"\u003eQ3: What does \"2S4P\" mean?\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cspan class=\"\"\u003eA: It means 2 cells in series (to double the voltage to 6.4V) and 4 cells in parallel (to quadruple the capacity to 20000mAh).\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cstrong\u003e\u003cspan class=\"\"\u003eQ4: Does it come with a connector?\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cspan class=\"\"\u003eA: \u003c\/span\u003e\u003cstrong\u003e\u003cspan class=\"\"\u003eNo.\u003c\/span\u003e\u003c\/strong\u003e\u003cspan class=\"\"\u003e The battery comes with bare red and black wires. You will need to solder or attach your own connector based on your device's requirements.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cstrong\u003e\u003cspan class=\"\"\u003eQ5: How should I connect the wires?\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cspan class=\"\"\u003eA: The \u003c\/span\u003e\u003cstrong\u003e\u003cspan class=\"\"\u003ered wire is positive (+)\u003c\/span\u003e\u003c\/strong\u003e\u003cspan class=\"\"\u003e and the \u003c\/span\u003e\u003cstrong\u003e\u003cspan class=\"\"\u003eblack wire is negative (-)\u003c\/span\u003e\u003c\/strong\u003e\u003cspan class=\"\"\u003e. Ensure correct polarity when connecting to your device.\u003c\/span\u003e\u003c\/p\u003e","brand":"Power Pack Hub","offers":[{"title":"Default Title","offer_id":68198340002096,"sku":"P108","price":95.98,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1000\/7386\/5520\/files\/32700-lifepo4-battery-pack-6.4v-20000mah-2s4p-4plus4-protected-main.webp?v=1793674149","url":"https:\/\/powerpackhub.com\/products\/32700-lifepo4-battery-pack-6-4v-20000mah-2s4p-4plus4","provider":"PowerPackHub","version":"1.0","type":"link"}