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Orders shipped from the EU warehouse: Free shipping is available to mainland EU countries (excluding remote islands).
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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.
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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.
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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
Livraison et taxes gratuites
Notre prix actuel est le prix final, livraison gratuite, droits de douane et taxes gratuits, vous n'avez pas besoin de payer d'autres frais.
【Caractéristique】Avec interrupteur à air (disjoncteur CC) ; BMS intelligent JK 16S 200A intégré avec Bluetooth, écran et équilibrage actif 2A
Utilisation : Ce kit ne peut pas être utilisé avec des cellules trop gonflées. Nous recommandons les cellules Better-ess ; elles conviennent parfaitement aux amateurs de bricolage.
【Prise en charge des cellules lifepo4】Prise en charge des cellules 280Ah, 300Ah, 304Ah, 314Ah 320Ah
【Taille】750*450*268mm
【Kit DIY】 Comprend un boîtier, un BMS, un écran d'affichage, un interrupteur, un bus en cuivre, une ligne de collecte, une carte de communication, un équilibreur actif, une carte en résine époxy, des bandes de connexion, des pôles positifs et négatifs et des vis et d'autres accessoires
【Communication】: Le kit de boîtier DIY Better-ess 51,2 V avec BMS JK 200 A peut communiquer avec ces marques d'onduleurs : Deye, Growatt, PYLONTECH, Victron Energy, Invt, Goodwe, Voltronic Power, SRNE, Megarevo, Luxpowertek, SMA, MUST
Very good quality, very well secured.
Die Lieferung erfolgte aus China, daher musste ich etwas warten, aber zumindest gab es einen Tracker, und man konnte das Paket verfolgen. Die Ware entspricht der Beschreibung und ist vollständig.
The battery box is of excellent quality ,Very good DIY battery cases for 16S 280 ~314Ah LiFePO4 battery cells. Definitely the best in the market. Well designed , good quality manufactured, no issues, all pre-assembled (just put in your cells)
The enclosure is definitely worth the money. It is heavy, made of thick steel sheet, and everything fits perfectly down to the millimeter. It comes with a JK BMS V19 200A with a 2A balancer; however, the display is an older version. I hope that future versions of this enclosure will be equipped with the latest JK BMS display model.
The connectors for connecting cables to the inverter are solid M10 terminals. Compression foams between the cells are included in the set, but to achieve better compression, I additionally used the spacers supplied with the cells themselves (Dejin 314 cells from the same seller – highly recommended). Thanks to this, the battery packs are better secured after compression.
There are no insulating pads under the PCB rail mounts (I covered the rails with wide double-sided insulating tape myself). The only modification related to using silicone heating mats mounted under the cells (an additional option available for purchase in other listings) is the need to slightly sand the lower central part of the front compression plate to allow the heating mat power cables to be routed to the dedicated connector in the JK BMS.
The EVE 314Ah cells and the battery enclosure are both excellent. The enclosure is sturdy and well-built, and the cells arrived perfectly matched and fully charged. Assembly was straightforward, and the final battery performs flawlessly.
Merci de vous être abonné !
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Gute Qualität Werte der Zellen passen auch gut top.
A great seller. I'll buy from them again in the future.
Express delivery in 5 working days!
The batteries arrived within 7 days, production dates from August 2025, original codes, voltages are all equal at 3.291V, and they have balanced perfectly during operation. Highly recommended!
The package arrived even though I did not receive shipping information, so I couldn’t track it. Nevertheless, the product works perfectly and the initial tests are very promising. Highly recommended!