Description
Details
Grade A-: Grade A but this batch has a larger variation in production date and capacity. They come sorted by capacity. Not for packs of 200 or larger!
Capacity: 280 Ah
Maximum discharge rate: 1C (280A)
Size: 72mm x 207.5mm x 172.5mm
This is a 3.2V Lifepo4 cell.
The cells have a lifespan (to 80% capacity) of 8000 cycles when using a pressure of 280-320kg and charge at 0.5C (0.05C termination current to 3.65V) 0.5C discharge (to 2.5V)
With busbars.
With (aftermarket) studs.
22.5cm high including studs, busbars and nuts mounted
Capacity report available
For this batch:
capacity: 303-315Ah
IR 0.150-0.16 mohm (@3.295V)
Thickness average: 71.34mm (70.97-72.96)
Capacity: 280 Ah
Maximum discharge rate: 1C (280A)
Size: 72mm x 207.5mm x 172.5mm
This is a 3.2V Lifepo4 cell.
The cells have a lifespan (to 80% capacity) of 8000 cycles when using a pressure of 280-320kg and charge at 0.5C (0.05C termination current to 3.65V) 0.5C discharge (to 2.5V)
With busbars.
With (aftermarket) studs.
22.5cm high including studs, busbars and nuts mounted
Capacity report available
For this batch:
capacity: 303-315Ah
IR 0.150-0.16 mohm (@3.295V)
Thickness average: 71.34mm (70.97-72.96)
Additional Information
Details
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Reviews
Customer Reviews
- Great Review by Marlien
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Very well cells, sizes are fine, capacity as declared in specs! I highly recommend it! (Posted on 23-12-24)Rating - Nice cells for the price Review by Sonne
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I preordered these cells early Sept 2024 and received them just over 10 weeks later. They do seem to be genuine LF280K v3 with original QR codes which can be scanned in iPhone camera app to produce the full text string for sending to NKON so the capacity report spreadsheet can be emailed back to you.Rating
Having done this I learned my 8 cells had production dates around Nov 2023, capacities between 319 and 322Ah and IR at 3.295V of 0.150 and 0.154milliOhms. As calendar ageing is the predominant factor limiting cell lifespan (greater even than cycling), I am not delighted to receive one year old cells, but the price of these cells was around 20 euros per cell less than the dual terminal LF280k v3 which NKON sell, so I consider some imperfection to be priced into the deal and accept that.
The physical condition looks great, with flat sides to the cells and a resting voltage on delivery of 3.304V per cell. The single stud terminals provide a fairly small surface area for the busbar to contact. Not an issue in my setup but maybe a consideration if you want to use a 12V inverter which will push the limits of the discharge C rate. (Posted on 07-12-24) - everything ok Review by EUGEN
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came in very good condition , very happy (Posted on 06-12-24)Rating - One cell is swollen Review by Iulian
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One lithium phosphate cell is swollen 3mm. Other 15 cells are good. Voltage 3.3 all.Rating
QR code said that cells are B grade and are producem in 02/2024. I didn't test capacity. (Posted on 06-12-24) - Good quality Review by Maksym
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Ordered 4 pieces, received without visual deformations, voltage on all cells 3.245 V (Posted on 04-12-24)Rating - Perfect cells for their price Review by Andrew
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Some cells have deformations (thicker by ~1mm); production date varies from may till september 2024; no capacity report included (anyway, it wasn't included even in Grade A LF304). (Posted on 28-11-24)Rating - Good cells Review by Tomas
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Did not etst them but physically looks very good. 4 stars because there were no capacity report available. Cells was made within 10 days from eatch other. Box'es was damaged. Boxes are bit too big and easy to make holes in them. But packaged from factory very good and cells are just fine. (Posted on 24-11-24)Rating - Great deal! Review by Arsen
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The order took about 2 month from pre-order. All 16 cells are in excellent conditions, the same voltage and IR, production date: 08 Jul 2024. Can definitely recommend! (Posted on 22-11-24)Rating - Good quality Review by Vasyl
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I ordered 8 cells and paid for the pre-order on 09/04/2024. The expected delivery date was 11/05/2024. On the 5th, a letter informed me that the delivery was delayed and the shipment would take place within a few days. Sent on 11/12/2024, received on 11/20/2024.Rating
The voltage on the cells was within 3.246V...3.248V, IR 0.12...0.15 mOhm. Production date within one month 12/30/2023 (1 pc), 01/06/2024 (1 pc), 01/07/2024 (2 pcs), 01/09/2024 (1 pc), 01/13/2024 (2 pcs), 01/26/2024 (1 pc).
All cells have approximately the same correct geometry, the average thickness is 71.5 mm. A convexity of 0.5 mm is considered permissible. (Posted on 21-11-24) - Damaged cell Review by Pavlo
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One cell has a dent, hidden by blue tape (package was fine). The cells have around 5% resistance difference. (Posted on 13-11-24)Rating - Great Review by Valentyn
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All cells have a voltage of 3.3V. Perfect condition, packed very well.Rating
Constantly informed about the status of the order by email. Very convenient, quality service. Delivery took three months upon pre-order.
I fully recommend it! (Posted on 19-09-24) - Good quality Review by Robert
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Received the battery batch sooner than expected, 3.27V each, no damage due to excellent packaging! (Posted on 21-06-24)Rating - Great cells Review by Conrad
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Received cell was produced in August 2023, which seems okay for a cell shipped to Europe received in January.Rating
Cell tested at 309 Ah 1020.9 Wh, which is great for a 280Ah cell. (Posted on 26-01-24)
