{"product_id":"catl-3-2v-280ah-lifepo4-battery-cell-threaded-m6-terminal-5000-cycles-e2-89-a40-15m-cf-89-ir-for-solar-off-grid-storage","title":"CATL 3.2V 280Ah LiFePO4 Battery Cell, Threaded M6 Terminal – ~5000 Cycles, ≤0.15mΩ IR for Solar \u0026 Off-Grid Storage","description":"\u003ch2 class=\"text-text-100 mt-3 -mb-1 text-[1.125rem] font-bold\" data-sourcepos=\"12:1-12:23;319-341\"\u003eProduct Description\u003c\/h2\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\" data-sourcepos=\"14:1-14:607;343-949\"\u003eCATL (Contemporary Amperex Technology Co., Limited) is one of the largest battery manufacturers in the world by volume, and this 3.2V 280Ah LiFePO4 cell is one of the most common building blocks for home energy storage, off-grid solar systems, and low-speed vehicle battery packs. This listing is the \u003cstrong\u003estud terminal version\u003c\/strong\u003e — instead of the flat factory terminal, the cell ships with welded threaded studs, a standard alternate terminal format used across the retail\/DIY LiFePO4 market specifically so busbars and connector plates can be bolted on directly, without drilling or sourcing custom adapters.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\" data-sourcepos=\"16:1-16:472;951-1422\"\u003e\u003cstrong\u003eWhy the stud terminal matters:\u003c\/strong\u003e flat factory terminals vary in shape between manufacturers and don't always match standard busbar hardware, which means DIY builders either hunt for compatible connectors or get custom plates made. Stud terminals standardize that interface — they're a purpose-built format (welded stud + base, typically M5\/M6\/M8) used widely across CATL, EVE, and other major 280Ah cell suppliers for exactly this reason, not an aftermarket workaround.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\" data-sourcepos=\"18:1-18:62;1424-1485\"\u003e\u003cstrong\u003eCore specs (as provided on the manufacturer's data card):\u003c\/strong\u003e\u003c\/p\u003e\n\u003cdiv class=\"overflow-x-auto w-full px-2 mb-6\" data-sourcepos=\"20:1-32:123;1487-2046\"\u003e\n\u003ctable class=\"min-w-full border-collapse text-sm leading-[1.7] whitespace-normal\"\u003e\n\u003cthead class=\"text-left\"\u003e\n\u003ctr\u003e\n\u003cth class=\"text-text-100 border-b-0.5 border-[hsl(var(--border-300)\/0.6)] py-2 pr-4 align-top font-bold\" scope=\"col\"\u003eParameter\u003c\/th\u003e\n\u003cth class=\"text-text-100 border-b-0.5 border-[hsl(var(--border-300)\/0.6)] py-2 pr-4 align-top font-bold\" scope=\"col\"\u003eValue\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003cbr\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd class=\"border-b-0.5 border-[hsl(var(--border-300)\/0.3)] py-2 pr-4 align-top\"\u003eBrand\u003c\/td\u003e\n\u003ctd class=\"border-b-0.5 border-[hsl(var(--border-300)\/0.3)] py-2 pr-4 align-top\"\u003eCATL\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"border-b-0.5 border-[hsl(var(--border-300)\/0.3)] py-2 pr-4 align-top\"\u003eCell Chemistry\u003c\/td\u003e\n\u003ctd class=\"border-b-0.5 border-[hsl(var(--border-300)\/0.3)] py-2 pr-4 align-top\"\u003eLiFePO4 (Lithium Iron Phosphate)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"border-b-0.5 border-[hsl(var(--border-300)\/0.3)] py-2 pr-4 align-top\"\u003eNominal Voltage\u003c\/td\u003e\n\u003ctd class=\"border-b-0.5 border-[hsl(var(--border-300)\/0.3)] py-2 pr-4 align-top\"\u003e3.2V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"border-b-0.5 border-[hsl(var(--border-300)\/0.3)] py-2 pr-4 align-top\"\u003eWorking Voltage Range\u003c\/td\u003e\n\u003ctd class=\"border-b-0.5 border-[hsl(var(--border-300)\/0.3)] py-2 pr-4 align-top\"\u003e2.5V - 3.65V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"border-b-0.5 border-[hsl(var(--border-300)\/0.3)] py-2 pr-4 align-top\"\u003eNominal Capacity\u003c\/td\u003e\n\u003ctd class=\"border-b-0.5 border-[hsl(var(--border-300)\/0.3)] py-2 pr-4 align-top\"\u003e280Ah\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"border-b-0.5 border-[hsl(var(--border-300)\/0.3)] py-2 pr-4 align-top\"\u003eNominal Weight\u003c\/td\u003e\n\u003ctd class=\"border-b-0.5 border-[hsl(var(--border-300)\/0.3)] py-2 pr-4 align-top\"\u003e5.35kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"border-b-0.5 border-[hsl(var(--border-300)\/0.3)] py-2 pr-4 align-top\"\u003eDimensions\u003c\/td\u003e\n\u003ctd class=\"border-b-0.5 border-[hsl(var(--border-300)\/0.3)] py-2 pr-4 align-top\"\u003e207mm x 174mm x 72mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"border-b-0.5 border-[hsl(var(--border-300)\/0.3)] py-2 pr-4 align-top\"\u003eInternal Resistance\u003c\/td\u003e\n\u003ctd class=\"border-b-0.5 border-[hsl(var(--border-300)\/0.3)] py-2 pr-4 align-top\"\u003e≤0.15mΩ\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"border-b-0.5 border-[hsl(var(--border-300)\/0.3)] py-2 pr-4 align-top\"\u003eMax Discharge Rate\u003c\/td\u003e\n\u003ctd class=\"border-b-0.5 border-[hsl(var(--border-300)\/0.3)] py-2 pr-4 align-top\"\u003e3C (peak\/short-duration rating — see note below)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"border-b-0.5 border-[hsl(var(--border-300)\/0.3)] py-2 pr-4 align-top\"\u003eCycle Life\u003c\/td\u003e\n\u003ctd class=\"border-b-0.5 border-[hsl(var(--border-300)\/0.3)] py-2 pr-4 align-top\"\u003e~5,000 cycles (see test condition note below)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"border-b-0.5 border-[hsl(var(--border-300)\/0.3)] py-2 pr-4 align-top\"\u003eTerminal Type\u003c\/td\u003e\n\u003ctd class=\"border-b-0.5 border-[hsl(var(--border-300)\/0.3)] py-2 pr-4 align-top\"\u003eWelded stud terminal, M6 (default) — other thread sizes available on request, contact customer service\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003cbr\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\" data-sourcepos=\"34:1-34:575;2048-2622\"\u003e\u003cstrong\u003eA note on the discharge rate:\u003c\/strong\u003e 3C on a 280Ah cell works out to a theoretical peak of roughly 840A. That's the cell's short-duration ceiling, not a number your BMS, busbars, or wiring are necessarily rated to sustain continuously — most home storage and solar setups run well under this figure in normal operation. It's also worth knowing that some CATL 280Ah documentation describes the cell's continuous charge\/discharge rating as closer to 1C (280A), with 3C reserved for brief pulses — confirm with us if your application needs a specific continuous-current guarantee.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\" data-sourcepos=\"36:1-36:629;2624-3252\"\u003e\u003cstrong\u003eA note on the cycle life figure:\u003c\/strong\u003e the manufacturer's data card for this listing states ~5,000 cycles, but doesn't specify the test conditions (depth of discharge, C-rate, temperature) used to reach that number — this matters, because cycle life figures for 280Ah-class cells vary a lot depending on test methodology. For comparison, EVE publishes its LF280K cycle life (≥6,000 cycles) with full test conditions disclosed: 0.5C charge\/discharge, 300±20kgf clamp force, 25°C, to 80% remaining capacity. We're working on getting the equivalent test conditions from CATL for this cell and will update this page once we have them.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\" data-sourcepos=\"38:1-38:218;3254-3471\"\u003e\u003cstrong\u003eA note on terminal thread size:\u003c\/strong\u003e the default stud thread on this listing is M6. If your build needs a different thread size, contact our customer service team before ordering — other sizes are available on request.\u003c\/p\u003e\n\u003ch2 class=\"text-text-100 mt-3 -mb-1 text-[1.125rem] font-bold\" data-sourcepos=\"40:1-40:57;3473-3529\"\u003eHow to Verify You've Received a Genuine, Grade A Cell\u003c\/h2\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\" data-sourcepos=\"42:1-42:522;3531-4052\"\u003eCATL's 280Ah cells are among the most counterfeited and mislabeled products in the DIY solar\/storage market — partly because CATL's own Grade A production is heavily allocated to automotive and large OEM contracts, which means \u003cstrong\u003egenuine Grade A CATL 280Ah cells are relatively scarce in the retail\/wholesale market compared to brands like EVE\u003c\/strong\u003e, where Grade A supply is more consistently available. This scarcity is exactly what makes the category attractive to counterfeiters and relabelers. A few things worth checking:\u003c\/p\u003e\n\u003cul class=\"[li_\u0026amp;]:mb-0 [li_\u0026amp;]:mt-1 [li_\u0026amp;]:gap-1 [\u0026amp;:not(:last-child)_ul]:pb-1 [\u0026amp;:not(:last-child)_ol]:pb-1 list-disc flex flex-col gap-1 pl-8 mb-3\" data-sourcepos=\"44:1-47:264;4054-5076\"\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\" data-sourcepos=\"44:1-44:204;4054-4257\"\u003e\n\u003cstrong\u003eBarcode\/QR placement:\u003c\/strong\u003e on genuine CATL 280Ah cells, the barcode is located between the negative terminal and the vent, close to the vent — a barcode in an inconsistent location is worth questioning.\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\" data-sourcepos=\"45:1-45:212;4258-4469\"\u003e\n\u003cstrong\u003eWeight and dimensions:\u003c\/strong\u003e genuine cells should measure close to 5.35kg and 207x174x72mm. A meaningful deviation outside normal manufacturing tolerance (a few hundred grams or a few millimeters) is a red flag.\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\" data-sourcepos=\"46:1-46:343;4470-4812\"\u003e\n\u003cstrong\u003eGrade A vs. Grade B:\u003c\/strong\u003e ask your seller directly which grade you're being sold. Grade B cells (minor capacity or cosmetic deviations from spec) are common and legitimate in this market at a lower price point, but should be sold as Grade B, not passed off as Grade A. A seller who can't or won't answer this question directly is a bad sign.\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\" data-sourcepos=\"47:1-47:264;4813-5076\"\u003e\n\u003cstrong\u003eTest reports and batch documentation:\u003c\/strong\u003e genuine cells from reputable channels typically come with some form of batch test report or data sheet. If a seller can't provide any documentation beyond a generic spec sheet, that's worth factoring into your decision.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\" data-sourcepos=\"49:1-49:112;5078-5189\"\u003eWe can provide grade and batch documentation on request — ask before ordering if this matters for your project.\u003c\/p\u003e\n\u003ch2 class=\"text-text-100 mt-3 -mb-1 text-[1.125rem] font-bold\" data-sourcepos=\"51:1-51:44;5191-5234\"\u003eCATL vs. EVE LF280K: How the Two Compare\u003c\/h2\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\" data-sourcepos=\"53:1-53:148;5236-5383\"\u003eThese are the two most commonly compared 280Ah cells in the DIY\/retail energy storage market. Here's how they stack up on publicly available specs:\u003c\/p\u003e\n\u003cdiv class=\"overflow-x-auto w-full px-2 mb-6\" data-sourcepos=\"55:1-66:138;5385-6438\"\u003e\n\u003ctable class=\"min-w-full border-collapse text-sm leading-[1.7] whitespace-normal\"\u003e\n\u003cthead class=\"text-left\"\u003e\n\u003ctr\u003e\n\u003cth class=\"text-text-100 border-b-0.5 border-[hsl(var(--border-300)\/0.6)] py-2 pr-4 align-top font-bold\" scope=\"col\"\u003eSpec\u003c\/th\u003e\n\u003cth class=\"text-text-100 border-b-0.5 border-[hsl(var(--border-300)\/0.6)] py-2 pr-4 align-top font-bold\" scope=\"col\"\u003eCATL 3.2V 280Ah (this cell)\u003c\/th\u003e\n\u003cth class=\"text-text-100 border-b-0.5 border-[hsl(var(--border-300)\/0.6)] py-2 pr-4 align-top font-bold\" scope=\"col\"\u003eEVE LF280K\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003cbr\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd class=\"border-b-0.5 border-[hsl(var(--border-300)\/0.3)] py-2 pr-4 align-top\"\u003eNominal Capacity\u003c\/td\u003e\n\u003ctd class=\"border-b-0.5 border-[hsl(var(--border-300)\/0.3)] py-2 pr-4 align-top\"\u003e280Ah\u003c\/td\u003e\n\u003ctd class=\"border-b-0.5 border-[hsl(var(--border-300)\/0.3)] py-2 pr-4 align-top\"\u003e280Ah\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"border-b-0.5 border-[hsl(var(--border-300)\/0.3)] py-2 pr-4 align-top\"\u003eNominal Voltage\u003c\/td\u003e\n\u003ctd class=\"border-b-0.5 border-[hsl(var(--border-300)\/0.3)] py-2 pr-4 align-top\"\u003e3.2V\u003c\/td\u003e\n\u003ctd class=\"border-b-0.5 border-[hsl(var(--border-300)\/0.3)] py-2 pr-4 align-top\"\u003e3.2V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"border-b-0.5 border-[hsl(var(--border-300)\/0.3)] py-2 pr-4 align-top\"\u003eWorking Voltage Range\u003c\/td\u003e\n\u003ctd class=\"border-b-0.5 border-[hsl(var(--border-300)\/0.3)] py-2 pr-4 align-top\"\u003e2.5V - 3.65V\u003c\/td\u003e\n\u003ctd class=\"border-b-0.5 border-[hsl(var(--border-300)\/0.3)] py-2 pr-4 align-top\"\u003e2.5V - 3.65V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"border-b-0.5 border-[hsl(var(--border-300)\/0.3)] py-2 pr-4 align-top\"\u003eCycle Life\u003c\/td\u003e\n\u003ctd class=\"border-b-0.5 border-[hsl(var(--border-300)\/0.3)] py-2 pr-4 align-top\"\u003e~5,000 cycles (test conditions not yet confirmed with manufacturer)\u003c\/td\u003e\n\u003ctd class=\"border-b-0.5 border-[hsl(var(--border-300)\/0.3)] py-2 pr-4 align-top\"\u003e≥6,000 cycles (0.5C charge\/discharge, 300±20kgf clamp, 25°C, to 80% capacity — officially published)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"border-b-0.5 border-[hsl(var(--border-300)\/0.3)] py-2 pr-4 align-top\"\u003eMax Discharge\u003c\/td\u003e\n\u003ctd class=\"border-b-0.5 border-[hsl(var(--border-300)\/0.3)] py-2 pr-4 align-top\"\u003e3C peak (continuous rating closer to 1C per some documentation)\u003c\/td\u003e\n\u003ctd class=\"border-b-0.5 border-[hsl(var(--border-300)\/0.3)] py-2 pr-4 align-top\"\u003e1C continuous, 2C pulse (30s)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"border-b-0.5 border-[hsl(var(--border-300)\/0.3)] py-2 pr-4 align-top\"\u003eInternal Resistance\u003c\/td\u003e\n\u003ctd class=\"border-b-0.5 border-[hsl(var(--border-300)\/0.3)] py-2 pr-4 align-top\"\u003e≤0.15mΩ (per this listing's data card)\u003c\/td\u003e\n\u003ctd class=\"border-b-0.5 border-[hsl(var(--border-300)\/0.3)] py-2 pr-4 align-top\"\u003e≤0.25mΩ (per EVE's published spec)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"border-b-0.5 border-[hsl(var(--border-300)\/0.3)] py-2 pr-4 align-top\"\u003eWeight\u003c\/td\u003e\n\u003ctd class=\"border-b-0.5 border-[hsl(var(--border-300)\/0.3)] py-2 pr-4 align-top\"\u003e5.35kg\u003c\/td\u003e\n\u003ctd class=\"border-b-0.5 border-[hsl(var(--border-300)\/0.3)] py-2 pr-4 align-top\"\u003e5.42kg ±0.3kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"border-b-0.5 border-[hsl(var(--border-300)\/0.3)] py-2 pr-4 align-top\"\u003eDimensions\u003c\/td\u003e\n\u003ctd class=\"border-b-0.5 border-[hsl(var(--border-300)\/0.3)] py-2 pr-4 align-top\"\u003e207 x 174 x 72mm\u003c\/td\u003e\n\u003ctd class=\"border-b-0.5 border-[hsl(var(--border-300)\/0.3)] py-2 pr-4 align-top\"\u003e207 x 173.7 x 72mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"border-b-0.5 border-[hsl(var(--border-300)\/0.3)] py-2 pr-4 align-top\"\u003eGrade A Availability\u003c\/td\u003e\n\u003ctd class=\"border-b-0.5 border-[hsl(var(--border-300)\/0.3)] py-2 pr-4 align-top\"\u003eLimited — most retail supply is Grade B, as Grade A is heavily allocated to automotive\/OEM buyers\u003c\/td\u003e\n\u003ctd class=\"border-b-0.5 border-[hsl(var(--border-300)\/0.3)] py-2 pr-4 align-top\"\u003eMore consistently available, with QR-code-based batch tracking distinguishing Grade A from Grade B\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"border-b-0.5 border-[hsl(var(--border-300)\/0.3)] py-2 pr-4 align-top\"\u003eTerminal Options\u003c\/td\u003e\n\u003ctd class=\"border-b-0.5 border-[hsl(var(--border-300)\/0.3)] py-2 pr-4 align-top\"\u003eFlat (factory) or welded stud (M6 default)\u003c\/td\u003e\n\u003ctd class=\"border-b-0.5 border-[hsl(var(--border-300)\/0.3)] py-2 pr-4 align-top\"\u003eFlat (factory) or welded stud (M6 typically included with busbar kit)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003cbr\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\" data-sourcepos=\"68:1-68:653;6440-7092\"\u003e\u003cstrong\u003eHow to think about the choice:\u003c\/strong\u003e if Grade A availability and fully disclosed cycle-life testing conditions matter most to your project, EVE's LF280K currently has an edge in transparency. If you specifically want CATL's brand reputation (it's one of the largest EV\/ESS battery suppliers globally, including as a Tesla supplier) and are comfortable with Grade B being the more commonly available retail option, this CATL cell is a solid choice. Note: we haven't included REPT in this table because publicly documented specs for their 280Ah cells are less standardized across sources — ask us directly if you're comparing against a specific REPT model.\u003c\/p\u003e\n\u003ch2 class=\"text-text-100 mt-3 -mb-1 text-[1.125rem] font-bold\" data-sourcepos=\"70:1-70:28;7094-7121\"\u003eSystem Integration Notes\u003c\/h2\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\" data-sourcepos=\"72:1-72:111;7123-7233\"\u003eIf you're building a full battery pack rather than buying single cells, a few practical numbers worth knowing:\u003c\/p\u003e\n\u003cul class=\"[li_\u0026amp;]:mb-0 [li_\u0026amp;]:mt-1 [li_\u0026amp;]:gap-1 [\u0026amp;:not(:last-child)_ul]:pb-1 [\u0026amp;:not(:last-child)_ol]:pb-1 list-disc flex flex-col gap-1 pl-8 mb-3\" data-sourcepos=\"74:1-76:268;7235-8370\"\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\" data-sourcepos=\"74:1-74:252;7235-7486\"\u003e\n\u003cstrong\u003eSeries configuration for common voltages:\u003c\/strong\u003e 16 cells in series (16S) gives you a nominal 51.2V pack — the standard voltage for most 48V-class home energy storage and solar systems. 4S gives 12.8V, 8S gives 25.6V, for smaller 12V\/24V-class systems.\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\" data-sourcepos=\"75:1-75:616;7487-8102\"\u003e\n\u003cstrong\u003eStud torque:\u003c\/strong\u003e for M6 stud terminals on LiFePO4 cells, published manufacturer specs across the industry generally fall in a 6-9 Nm range (EVE, for example, specifies a 6 Nm maximum on its LF280K studs). That said, experienced DIY pack builders frequently report better real-world results in the 4-5 Nm range, since stud bases are often soft aluminum and can strip above that — clean, oxide-free contact surfaces matter more than pushing torque to the rated maximum. Use a calibrated torque wrench rather than tightening by feel, and check connections periodically after initial assembly and a few charge cycles.\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\" data-sourcepos=\"76:1-76:268;8103-8370\"\u003e\n\u003cstrong\u003eBMS selection:\u003c\/strong\u003e match your BMS to your actual series cell count (commonly 4S\/8S\/16S for this cell) and your system's real continuous current draw, not the cell's peak 3C rating. Contact us if you'd like a recommendation based on your specific pack configuration.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\" data-sourcepos=\"78:1-78:26;8372-8397\"\u003e\u003cstrong\u003eWhere this cell fits:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul class=\"[li_\u0026amp;]:mb-0 [li_\u0026amp;]:mt-1 [li_\u0026amp;]:gap-1 [\u0026amp;:not(:last-child)_ul]:pb-1 [\u0026amp;:not(:last-child)_ol]:pb-1 list-disc flex flex-col gap-1 pl-8 mb-3\" data-sourcepos=\"79:1-83:64;8398-8659\"\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\" data-sourcepos=\"79:1-79:61;8398-8458\"\u003eHome energy storage battery packs \/ off-grid solar systems\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\" data-sourcepos=\"80:1-80:36;8459-8494\"\u003eTelecom base station backup power\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\" data-sourcepos=\"81:1-81:59;8495-8553\"\u003eLow-speed EV battery packs (golf carts, forklifts, AGVs)\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\" data-sourcepos=\"82:1-82:42;8554-8595\"\u003eRV and residential backup power systems\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\" data-sourcepos=\"83:1-83:64;8596-8659\"\u003eDIY battery pack builds and bulk purchasing for pack assembly\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\" data-sourcepos=\"85:1-85:175;8661-8835\"\u003e\u003cstrong\u003eBulk orders:\u003c\/strong\u003e available in larger quantities for full pack builds (e.g., 16S\/48V configurations) or with BMS integration — contact us for a quote on custom configurations.\u003c\/p\u003e\n\u003ch2 class=\"text-text-100 mt-3 -mb-1 text-[1.125rem] font-bold\" data-sourcepos=\"87:1-87:30;8837-8866\"\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\" data-sourcepos=\"89:1-90:296;8868-9218\"\u003e\u003cstrong\u003eIs this a genuine CATL cell, and what grade is it?\u003c\/strong\u003e We source these as genuine CATL cells and can confirm the specific grade (A or B) at the time of order — ask our customer service team before purchasing if grade matters for your project. As noted above, Grade A CATL 280Ah cells are less consistently available in the retail market than Grade B.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\" data-sourcepos=\"92:1-93:248;9220-9547\"\u003e\u003cstrong\u003eWhat's the difference between the stud terminal and flat terminal versions?\u003c\/strong\u003e Electrically, nothing — same cell inside. The stud version has welded M6 threaded studs added to the terminals for direct busbar connection, which is the standard approach for DIY pack assembly. The flat version is the unmodified factory terminal.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\" data-sourcepos=\"95:1-96:147;9549-9742\"\u003e\u003cstrong\u003eHow many cells do I need for a 48V system?\u003c\/strong\u003e 16 cells in series (16S) gives a nominal 51.2V pack, which is the standard configuration for most 48V-class home energy storage and solar systems.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\" data-sourcepos=\"98:1-99:291;9744-10080\"\u003e\u003cstrong\u003eWhat torque should I use on the M6 studs?\u003c\/strong\u003e Manufacturer specs for M6 LiFePO4 stud terminals generally range 6-9 Nm, but many experienced builders use 4-5 Nm in practice to avoid stripping the soft aluminum stud base — use a calibrated torque wrench and prioritize clean, oxide-free contact surfaces over pushing to the rated maximum.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\" data-sourcepos=\"101:1-102:229;10082-10363\"\u003e\u003cstrong\u003eWhy don't you list REPT in the comparison table?\u003c\/strong\u003e REPT's 280Ah cells don't have as consistently documented public specs across independent sources as CATL and EVE do. If you're specifically comparing against a REPT model, contact us with the details and we can help you compare.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\" data-sourcepos=\"104:1-105:336;10365-10761\"\u003e\u003cstrong\u003eHow does this cell's cycle life compare to EVE's LF280K?\u003c\/strong\u003e EVE publishes ≥6,000 cycles for the LF280K with fully disclosed test conditions (0.5C, 300±20kgf clamp, 25°C, to 80% capacity). This CATL cell's data card states ~5,000 cycles, though the manufacturer hasn't published the specific test conditions behind that figure — we're following up to get that confirmed and will update this page.\u003c\/p\u003e","brand":"CATL","offers":[{"title":"Default Title","offer_id":51454218567926,"sku":"OAS1713","price":237.98,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0819\/2753\/6886\/files\/catl-280ah-solar-storage-lifepo4-cell_455fe8e0-8a1f-4eb2-bbd9-ffda3d4585ac.webp?v=1786968418","url":"https:\/\/oneandes.com\/products\/catl-3-2v-280ah-lifepo4-battery-cell-threaded-m6-terminal-5000-cycles-e2-89-a40-15m-cf-89-ir-for-solar-off-grid-storage","provider":"OneAndes","version":"1.0","type":"link"}