{"product_id":"cornex-grade-a-3-2v-314ah-rechargeable-lifepo4-battery-cell","title":"Cornex Grade A 3.2V 314Ah Rechargeable LiFePO4 Battery Cell","description":"\u003ch3 data-line=\"true\" data-line-index=\"0\" data-zone-id=\"0\"\u003e\u003cspan style=\"color: rgb(255, 76, 76);\"\u003eFree Shipping \u0026amp; Free Tax\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eThe Price listed is the final price! Free shipping, free customs duties and tax, You don't need to pay any other fees. \u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eProduct Information:\u003cbr\u003e\u003c\/strong\u003e\u003cbr\u003e\u003cspan\u003eBuilt for endurance and consistency, these cells are perfect for assembling robust, high-capacity 12V, 24V and 48V battery packs - ideal for solar, campervans, marine systems, and off-grid setups.\u003cbr\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e✔️Designed for longevity with up to\u003cspan\u003e \u003c\/span\u003e\u003cstrong data-start=\"199\" data-end=\"226\"\u003e8,000 cycles at 70% SOH\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e(6,000 at 80%), providing years of dependable energy storage.\u003c\/p\u003e\n\u003cp\u003e✔️Advanced LiFePO₄ chemistry and rugged construction ensure stable performance under demanding off-grid conditions.\u003c\/p\u003e\n\u003cp\u003e✔️With a 314Ah capacity, these cells deliver serious storage for high-demand applications.\u003c\/p\u003e\n\u003cp\u003e✔️Reliable operation across a wide temperature range (discharge from -20°C to 60°C) makes them suitable for remote and variable environments.\u003c\/p\u003e\n\u003cp\u003e✔️High round-trip efficiency (≥94%) maximises usable energy and reduces losses during charge\/discharge.\u003c\/p\u003e\n\u003ch3 data-start=\"432\" data-end=\"456\"\u003eSpecification\u003cbr\u003e\n\u003c\/h3\u003e\n\u003cp\u003eManufacturer:Cornex\u003cbr data-start=\"114\" data-end=\"117\"\u003eModel No.: Cornex-314AH\u003cbr data-start=\"144\" data-end=\"147\"\u003eTypical Voltage: 3.2V\u003cbr data-start=\"172\" data-end=\"175\"\u003eTypical Capacity: 314Ah\u003cbr data-start=\"202\" data-end=\"205\"\u003eAC Impedance Resistance: ≤0.17mΩ\u003cbr data-start=\"241\" data-end=\"244\"\u003eLife Cycle: 8000cycles\u003cbr data-start=\"264\" data-end=\"267\"\u003eStandard Charge\/Discharge Current: 1C\/1C\u003cbr data-start=\"311\" data-end=\"314\"\u003eStandard Charge Cut-off Voltage: 3.65V\u003cbr data-start=\"356\" data-end=\"359\"\u003eStandard Discharge Cut-off Voltage: 2.5V\u003cbr data-start=\"403\" data-end=\"406\"\u003eContinuous Charge\/Discharge Current: 1C\/1C\u003cbr data-start=\"452\" data-end=\"455\"\u003ePulse Charge\/Discharge Current (60s): 2C\/2C\u003cbr data-start=\"502\" data-end=\"505\"\u003eRecommended SOC Window: 10%~90%\u003cbr data-start=\"540\" data-end=\"543\"\u003eCharging Working Temperature: 0℃~55℃\u003cbr data-start=\"583\" data-end=\"586\"\u003eDischarging Working Temperature: -30℃~55℃\u003cbr data-start=\"631\" data-end=\"634\"\u003eSelf Discharging Rate: \u0026lt;3%\u003cbr data-start=\"664\" data-end=\"667\"\u003eShort Term Storage Temperature (\u0026lt;1 Month): -20℃~45℃\u003cbr data-start=\"722\" data-end=\"725\"\u003eLong Term Storage Temperature (\u0026lt;1 Year): 0℃~35℃\u003cbr data-start=\"776\" data-end=\"779\"\u003eStorage Moisture: \u0026lt;95%\u003cbr data-start=\"805\" data-end=\"808\"\u003eCell Dimension: 207.2\u003cem data-start=\"833\" data-end=\"839\"\u003e71.7\u003c\/em\u003e173.7mm\u003cbr data-start=\"846\" data-end=\"849\"\u003eCell Weight: 5650g\u003cbr data-start=\"871\" data-end=\"874\"\u003eCertification: MSDS, UN38.3, CE\u003cbr data-start=\"909\" data-end=\"912\"\u003eWarranty: 5 Years\u003c\/p\u003e\n\u003ch3 data-start=\"432\" data-end=\"456\"\u003eAvailable documents:\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0780\/5344\/1838\/files\/cornex_314AH_82eab547-e259-4e8d-b8ea-34c7ead349e8.pdf?v=1773220582\"\u003e\u003cspan style=\"text-decoration: underline;\"\u003e\u003cstrong\u003eCORNEX 314AH Battery Specification Sheet\u003c\/strong\u003e\u003c\/span\u003e\u003c\/a\u003e\u003cstrong\u003e\u003cspan style=\"text-decoration: underline;\"\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0780\/5344\/1838\/files\/Cornex_314Ah_UN38.3.pdf.pdf?v=1773220591\"\u003e\u003cstrong\u003e\u003cspan style=\"text-decoration: underline;\"\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003c\/a\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-start=\"0\" data-end=\"30\"\u003eImportant Installation Notice:\u003c\/h3\u003e\n\u003cp data-start=\"32\" data-end=\"99\"\u003eTo avoid contact resistance, the following points must be observed:\u003c\/p\u003e\n\u003cp data-start=\"101\" data-end=\"745\"\u003e✔️ Thoroughly clean the battery terminals with ethanol or pure alcohol to remove oxide layers.\u003cbr data-start=\"195\" data-end=\"198\"\u003e✔️ The terminals must not be touched with greasy fingers – they must be absolutely grease-free and clean.\u003cbr data-start=\"303\" data-end=\"306\"\u003e✔️ Ideally, the contacts should be cleaned with a brass brush or fine sandpaper (grit 1000).\u003cbr data-start=\"398\" data-end=\"401\"\u003e✔️ The contact surfaces of the cell connectors must also be carefully cleaned.\u003cbr data-start=\"479\" data-end=\"482\"\u003e❌ The use of assembly greases, copper paste, or similar substances must be strictly avoided – they cause contact resistance, which can lead to heat generation and measurement errors during operation. As a result, the full capacity of the cells cannot be utilized.\u003c\/p\u003e\n\u003cp data-start=\"747\" data-end=\"794\" data-is-last-node=\"\" data-is-only-node=\"\"\u003e🔧 Tighten the M6 screws with a torque of 6 Nm.\u003c\/p\u003e\n\u003cp data-start=\"747\" data-end=\"794\" data-is-last-node=\"\" data-is-only-node=\"\"\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eNOTE\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eWe recommend a maximum discharge down to 2.70 V and a maximum charge of each cell up to 3.50 V.\u003c\/p\u003e\n\u003cdiv class=\"text-base my-auto mx-auto [--thread-content-margin:--spacing(4)] @[37rem]:[--thread-content-margin:--spacing(6)] @[72rem]:[--thread-content-margin:--spacing(16)] px-(--thread-content-margin)\"\u003e\n\u003cdiv class=\"[--thread-content-max-width:32rem] @[34rem]:[--thread-content-max-width:40rem] @[64rem]:[--thread-content-max-width:48rem] mx-auto max-w-(--thread-content-max-width) flex-1 group\/turn-messages focus-visible:outline-hidden relative flex w-full min-w-0 flex-col agent-turn\" tabindex=\"-1\"\u003e\n\u003cdiv class=\"flex max-w-full flex-col grow\"\u003e\n\u003cdiv data-message-author-role=\"assistant\" data-message-id=\"97941a22-5fca-48a3-ab78-ec3c45a34ade\" dir=\"auto\" class=\"min-h-8 text-message relative flex w-full flex-col items-end gap-2 text-start break-words whitespace-normal [.text-message+\u0026amp;]:mt-5\" data-message-model-slug=\"gpt-5\"\u003e\n\u003cdiv class=\"flex w-full flex-col gap-1 empty:hidden first:pt-[3px]\"\u003e\n\u003cdiv class=\"markdown prose dark:prose-invert w-full break-words light markdown-new-styling\"\u003e\n\u003cp data-start=\"99\" data-end=\"280\"\u003e48.0 V system: Max. voltage 56.0 V, Max. discharge 43.3 V\u003cbr data-start=\"156\" data-end=\"159\"\u003e24.0 V system: Max. voltage 28.0 V, Max. discharge 21.65 V\u003cbr data-start=\"217\" data-end=\"220\"\u003e12.0 V system: Max. voltage 14.0 V, Max. discharge 10.82 V\u003cbr\u003e\u003c\/p\u003e\n\u003cp data-start=\"99\" data-end=\"280\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0780\/5344\/1838\/files\/H9366cfd8626b4f549.png?v=1762238490\" alt=\"\"\u003e\u003cbr\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0780\/5344\/1838\/files\/H279479aa1bef.png?v=1762238525\" alt=\"\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0780\/5344\/1838\/files\/H9c1d9a4c318443.png?v=1762238526\" alt=\"\"\u003e\u003cbr\u003e\u003cimg alt=\"\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0780\/5344\/1838\/files\/69931bc522826679fe59f4d2322f37c9.png?v=1749199245\"\u003e\u003cbr\u003e\u003cimg alt=\"\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0780\/5344\/1838\/files\/84ed97d3d2d17a099649150ae202da52.png?v=1749199242\"\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003ch3\u003eWarranty\u003c\/h3\u003e\n\u003cp\u003eThe warranty period is \u003cstrong\u003e5 years\u003c\/strong\u003e from the date you receive.\u003c\/p\u003e\n\u003cp\u003eWe only replace new cell for free due to the failure of manufacturing.\u003c\/p\u003e\n\u003cp\u003eBefore the shipment, we will detect the cell voltage\/resistance\/appearance and other issues. we can only ensure that single cell is good before the shipment.\u003c\/p\u003e\n\u003cp\u003eWhen arrival you can test the cells within 1 week, if you found problems please contact us for refund or replace. Any return behavior buyers need to be responsible for shipping fee.\u003c\/p\u003e\n\u003ch3\u003eRemark\u003cbr\u003e\n\u003c\/h3\u003e\n\u003cp\u003ePlease read carefully all the description before taking orders, the battery is suitable for DIY lovers with experience, people who are not familiar with the safe use of lithium battery knowledge, please go to our shop to buy the finished product.\u003cbr\u003e\u003cbr\u003eDIY battery pack must get the cells balanced (same voltage ) before assembly.\u003cbr\u003eAnd we don’t accept refund for buyers who don’t know how to assembled or unbalanced assembly.\u003cbr\u003e\u003cbr\u003ePlease use the correct BMS during assembly. We don’t accept refund for the problem caused during assembly process or after the assembly. Such as not use the BMS, the BMS connected to the wrong wire lead to battery damage, charger failure, the assembly error or unbalanced assembly, etc.\u003cbr\u003e\u003cbr\u003eBefore assembling, please make sure use the same capacity cell and use the same brand of the cell. It is forbidden to mix cells with different capacity and brand in the same battery system. Otherwise, we will not be responsible for quality assurance.\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eApplication\u003c\/span\u003e\u003c\/h3\u003e\n\u003cdiv class=\"detailmodule_text\"\u003e\n\u003cp class=\"detail-desc-decorate-content\"\u003e\u003cspan data-spm-anchor-id=\"a2g0o.detail.1000023.i0.25142db8EayKPy\"\u003eSolar energy storage, solar power system, UPS supply, Engine starting battery, Electric bicycle\/motorcycle\/scooter, Golf trolley\/carts, RV, EV, Caravan So on.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"detail-desc-decorate-content\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0780\/5344\/1838\/files\/H44f4d0d1225.png?v=1762238260\" alt=\"\"\u003e\u003c\/p\u003e\n\u003ch3\u003eContact us :\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eMore any questions about the BetterESS Power Battery? \u003cbr\u003eEmail:  \u003ca href=\"mailto:service@better-ess.com\"\u003eservice@better-ess.com\u003c\/a\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003e\u003cspan\u003e\u003cbr\u003e\u003c\/span\u003e\u003c\/span\u003e\u003cbr\u003e\u003c\/p\u003e","brand":"BetterESS","offers":[{"title":"4KS \/ Skladem v EU (3–7 dní)","offer_id":51240545976622,"sku":null,"price":419.99,"currency_code":"USD","in_stock":true},{"title":"4KS \/ Čína (35–45 dní)","offer_id":51240546009390,"sku":null,"price":419.99,"currency_code":"USD","in_stock":true},{"title":"8KS \/ Skladem v EU (3–7 dní)","offer_id":51240546042158,"sku":null,"price":839.99,"currency_code":"USD","in_stock":true},{"title":"8KS \/ Čína (35–45 dní)","offer_id":51240546074926,"sku":null,"price":839.99,"currency_code":"USD","in_stock":true},{"title":"16KS \/ Skladem v EU (3–7 dní)","offer_id":51240546107694,"sku":null,"price":1659.99,"currency_code":"USD","in_stock":false},{"title":"16KS \/ Čína (35–45 dní)","offer_id":51240546140462,"sku":null,"price":1659.99,"currency_code":"USD","in_stock":true},{"title":"24 KS \/ Skladem v EU (3–7 dní)","offer_id":51240546173230,"sku":null,"price":2499.99,"currency_code":"USD","in_stock":false},{"title":"24 KS \/ Čína (35–45 dní)","offer_id":51240546205998,"sku":null,"price":2499.99,"currency_code":"USD","in_stock":true},{"title":"32KS \/ Skladem v EU (3–7 dní)","offer_id":51240546238766,"sku":null,"price":3319.99,"currency_code":"USD","in_stock":false},{"title":"32KS \/ Čína (35–45 dní)","offer_id":51240546271534,"sku":null,"price":3319.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0780\/5344\/1838\/files\/Hbba1eaf04fad44ac.png?v=1762238260","url":"https:\/\/better-ess.com\/cs\/products\/cornex-grade-a-3-2v-314ah-rechargeable-lifepo4-battery-cell","provider":"BetterESS","version":"1.0","type":"link"}