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Orders shipped from the EU warehouse: Free shipping is available to mainland EU countries (excluding remote islands).
Orders shipped from China: Free shipping is available to the EU, US, and other major regions (excluding remote islands).
Note: If your shipping address is in the UK, Switzerland, or Norway, and your order is shipped from our European warehouse, additional shipping fees will apply. Any customs duties or taxes incurred for these destinations must also be covered by the customer.
After you place an order, we will process it within 1-2 business days. Depending on your shipping address, we will ship from the nearest warehouse so you can receive your items as soon as possible.
Contact us at service@better-ess.com to check the stock level of your nearest warehouse.
We stand behind the quality and performance of our products through comprehensive warranty coverage.
All LiFePO4 Cells Batteries can receive a 5-year warranty, when used correctly according to the product manual instructions.
Mobile ESS and DIY Case Kit are also warranted for 5 years.
Battery chargers carry a 2-year warranty.
Accessories are covered by a 1-year warranty.
All warranties are effective from the date of purchase by the end user. Correct installation and usage as specified in the product manual are required to maintain warranty eligibility.
Please take time to carefully review the manual prior to setup and operation to ensure proper use and long-lasting performance from your BetterESS LiFePO4 System. We're here to support you throughout the warranty periods.
We provide lifetime customer support to ensure you enjoy a worry-free experience with our products.
Whether you have questions about installation, usage, or maintenance, our dedicated team is always here to help — anytime you need us.
Contact us (Email): service@better-ess.com
The Price listed is the final price! Free shipping, free customs duties and tax, You don't need to pay any other fees.
■ Budget-friendly cell for DIYers
■ 100% Grade A Cells
■ 5 Years Warranty
■ Deep Cycles
■ Wide Range of Applications
■ Perfect replacement for AGM, GEL, and SLA batteries
■ Free Accessories: Connecting Strips, Nuts, Washers, yellow epoxy boards etc
CALB 230Ah LiFePO4 Cell Product Specification


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.
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.
Solar energy storage, solar power system, UPS supply, Engine starting battery, Electric bicycle/motorcycle/scooter, Golf trolley/carts, RV, EV, Caravan So on.

More any questions about the BetterESS Power Battery?
Email: service@better-ess.com
| Battery brand | CALB |
|---|---|
| Battery model | L173F230 |
| Chemistry | Lithium Iron Phosphate (LiFePO4 or LFP) |
| Nominal voltage | 3.2V |
| Operational voltage | 2.5 V – 3.65 V |
| Nominal capacity | 230Ah |
| AC. 1kHz Impedance Resistance | ≤0.3mΩ (Fresh Cell, 30% SOC) |
| Weight | 4.17±0.16kg |
| Dimensions L*W*H (mm) | 207.2 (with Pole) * 173.9 * 53.72 |
| Terminal | M6 Screw Hole |
| Cycle life | ≥4000 Cycles (1C/1C, 25±5°C, SOC 80%) |
| Standard Charge/Discharge Current | 1C / 1C |
| Standard Charge/Discharge Cut-off Voltage | 3.65V / 2.5V |
| Continuous Charge/Discharge Current | 1C / 1C |
| Max Pulse Charge/Discharge Current (10s) | 690A / 690A |
| Recommended SOC window | 10%~90% |
| Charging Temperature | 0℃ ~ 55℃ |
| Discharging Temperature | -36℃ ~ 65℃ |
| Storage Temperature | -20°C ~ 45°C |
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Ordered for the second time! very fast delivery.
Die EVE 628Ah Batterie ist eine echte Investition in Zuverlässigkeit. Ich nutze sie für meine Solaranlage zu Hause, und die Leistung ist konstant hoch. Die Kapazität reicht locker für unsere ganzen Geräte, und die Lade- und Entladezyklen funktionieren einwandfrei. Außerdem ist der Kundenservice sehr hilfsbereit bei Fragen. Ich würde sie jederzeit wieder kaufen.
Neatly packaged. Everything arrived in order. All four cell voltages are 3.27 volts. Thank you, seller.
I installed the 48V 10kWh 200Ah All-in-One Sodium-ion Battery in my home solar system, and it has exceeded all my expectations. Setup was very easy, and everything integrates perfectly. The battery provides stable and reliable power even during cloudy days or short outages. The 10kWh capacity is fantastic – I can run all my home appliances for multiple days without worry. The efficiency and build quality seem excellent, and customer support has been very responsive. I highly recommend this system for anyone looking for a dependable, high-performance home energy storage solution.
Diese Batteriezellen haben meine Erwartungen übertroffen. Sie sind brandneu und in einwandfreiem Zustand angekommen. Die Leistung ist stabil und die Zellbalance ist sehr gut. Ich verwende sie in einem Solarspeichersystem und habe keinerlei Probleme festgestellt. Der Verk?ufer war professionell und die Lieferung erfolgte schnell. Insgesamt ein sehr hochwertiges Produkt, das ich gerne weiterempfehle.