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EVE 280K Test Videos:
Advantage
These original LiFePO4 cells come directly from EVE and are certified. The actual capacity of the cells is at least 300 Ah.
✔️ 280Ah capacity – Ideal for energy storage projects
✔️ Grade A+ quality – Automated production, tested with precise measuring equipment
✔️ 8000+ cycles – Long lifespan for sustainable energy supply
✔️ QR code engraved – Each cell individually marked
✔️ Balanced cells – Ready for immediate use and of the highest quality
Download Document:
EVE 280K Cells Specification.pdf
Important Installation Notice:
To avoid contact resistance, the following points must be observed:
✔️ Thoroughly clean the battery terminals with ethanol or pure alcohol to remove oxide layers.
✔️ The terminals must not be touched with greasy fingers – they must be absolutely grease-free and clean.
✔️ Ideally, the contacts should be cleaned with a brass brush or fine sandpaper (grit 1000).
✔️ The contact surfaces of the cell connectors must also be carefully cleaned.
❌ 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.
🔧 Tighten the M6 screws with a torque of 6 Nm.
NOTE
We recommend a maximum discharge down to 2.70 V and a maximum charge of each cell up to 3.50 V.
Real User Feedback: Why BetterESS LiFePO4 Batteries Stand Out
★★★★★
"Very reliable cells"
Johannes Becker
Good quality! The EVE LF280K LiFePO4 cells arrived well-packaged and with identical voltage. Very reliable and powerful..
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Warranty
The warranty period is 5 years from the date you receive.
We only replace new cell for free due to the failure of manufacturing.
Before 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.
When 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.
Remark
Please 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.
DIY battery pack must get the cells balanced (same voltage ) before assembly.
And we don’t accept refund for buyers who don’t know how to assembled or unbalanced assembly.
Please 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.
Before 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.
Application
Solar energy storage, solar power system, UPS supply, Engine starting battery, Electric bicycle/motorcycle/scooter, Golf trolley/carts, RV, EV, Caravan So on.
| Specification | Details |
|---|---|
| Battery brand | EVE |
| Battery model | LF280K (Latest version: V3) |
| Nominal Voltage | 3.2V |
| Operational voltage | 2.5V – 3.65V |
| Nominal capacity | 280Ah |
| Actual capacity | 290Ah – 308Ah |
| Chemistry | Lithium Iron Phosphate (LiFePO4 or LFP) |
| Cycle Life | ≥ 6000 cycles (Up to 8000 cycles for the V3 version) |
| Max Continuous Charge/Discharge Current | 1C (280A) |
| Max Pulse Charge/Discharge Current (30s) | 2C (560A) |
| Dimensions | 173 × 73 × 207 mm |
| Weight | 5.5 kg |
| Internal Resistance | ≤ 0.25mΩ |
| Recommended SOC window | 10% – 90% |
| Residual Capacity loss | Per month ≤ 3.0% |
| Charging temperature | 0℃ ~ 55℃ |
| Discharging temperature | -20℃ ~ 55℃ |
Q1: What are the environmental features of this battery?
The battery is made from lithium iron phosphate (LiFePO4), an environmentally friendly material that does not contain heavy metals or rare metals. It is safe and stable, not prone to burning or exploding under high temperatures, impacts, or short circuit conditions.
Q2: How should this battery be maintained to prolong its lifespan?
Regularly check the battery's exterior and connections to keep them clean and dry. Avoid keeping the battery in a state of overcharge or deep discharge for extended periods. Be mindful of the ambient temperature during use; avoid charging in extremely cold conditions.
Q3: What are the installation requirements for this battery?
The battery can be installed in any position as it does not contain acid. Ensure that the battery is securely mounted to prevent vibrations and impacts during movement.
Q4: How long do BetterESS batteries last?
Our LiFePO4 lithium iron batteries can provide 2000+ cycles, which is significantly more compared to the 300–500 cycles typically found in lead-acid batteries. The service life of LiFePO4 batteries is 8 to 10 times longer than standard lead-acid batteries.
Q5: Are your batteries safe?
Yes, our LiFePO4 batteries are designed with safety in mind. They are manufactured using Automotive Grade LiFePO4 Cells, offering higher energy density, no memory effect, and more stable performance. The stable chemical structure of LiFePO4 ensures they do not burn or explode, even under high temperatures, short circuits, impact, or drops.
Q6: Are there any special handling or maintenance tips for this battery?
The LiFePO4 battery requires minimal maintenance. However, it is recommended to regularly check connections and ensure the battery is kept in a dry and ventilated space. Avoid exposure to extreme temperatures to prolong battery life.
Customer Reviews
Based on 12 reviews
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M
Quality test still running. Cells look visually good
J
Ich habe 16 prismatische EVE-Zellen mi jeweils 280 Ah bestellt. Die Lieferung war hervorragend verpackt. Die elektrischen Werte wie Innenwiderstand und Spannung der einzelnen Zellen liegen sehr eng zusammen.
Alle Zellen sind gut gefertigt. Für diesen Preis würde ich auch gerne wieder bestellen!
B
Die Qualität der batteriezellen ist…
Die Qualität der batteriezellen ist sehr gut.
Es hat alles reibungslos geklappt von der Bestellung bis zur Lieferung....nun hab ich meinen selbst gebauten batteriespeicher seit 10 Tagen in Betrieb und hab seitdem keinen Strom mehr vom Netz gebraucht.
Ich werde etwas später wieder bei ihnen einkaufen.
S
Seriöser und sehr solider Anbieter
Durch und durch seriöser Anbieter. Versand top, gut gesichert. Akku mit sehr umfangreicher Beschreibung/Handbuch. Immer wieder gern.
B
Alles bestens geklappt! Empfehlenswert!
BetterESS hat mir zuverlässig einen Sendungstermin und zwischendurch Statusnachrichten geschickt, was ich sehr gut finde. Die Bestellungen haben bestens geklappt. Die Ware ist zuverlässig zum angegebenen Termin versendet worden und sicher verpackt in einem 1A Zustand angekommen. Ich bin vollstens zufrieden und würde meine nächsten Akkus wieder hier bestellen. Ich kann BetterESS ohne Einschränkungen weiter empfehlen! Danke!
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