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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.
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.
Maximize your solar energy with a 2.5kWh LiFePO4 balcony battery storage system designed for modern homes and balcony solar systems.
Store excess solar power during the day and use it when you need it — at night, during peak electricity hours, or when solar production is low.
With 1200W output power, plug & play installation, and safe LiFePO4 battery technology, it is the ideal energy solution for apartments, houses, and small solar systems.
Solar panels often produce more energy than your home uses during the daytime.
Instead of sending unused electricity back to the grid, store it in the 2.5kWh battery system and use your own clean energy whenever needed.
Higher solar self-consumption. Lower electricity costs.
Equipped with reliable LiFePO4 battery technology, providing:
✅ High safety performance
✅ Long cycle life
✅ Excellent thermal stability
✅ Stable energy output
Designed for daily charging and discharging, providing reliable power for years.
With up to 1200W output power, the system can support various household applications:
Enjoy flexible energy usage anytime.
No complicated installation process.
Simply connect:
Solar Panels → Battery Storage → Micro Inverter → Home Appliances
The compact design makes it suitable for balconies, terraces, garages, and small residential solar systems.
Monitor your energy anytime through smart management.
Check:
Take control of your energy usage easily.
Built-in intelligent protection system provides:
✅ Overcharge protection
✅ Over-discharge protection
✅ Over-current protection
✅ Short-circuit protection
✅ Temperature protection
Keeping your home energy system safe and stable.
Designed for European residential users:
🏢 Apartment balconies
🏠 Family homes
🌞 Balcony PV systems
🔋 Energy-saving solutions
Store your solar power and reduce your dependence on the grid.
| Specification | Details |
|---|---|
| Battery Capacity | 2.5kWh |
| Battery Type | LiFePO4 |
| Output Power | 1200W |
| Application | Balcony Solar Storage |
| Installation | Plug & Play |
| Battery Life | Long Cycle Life |
| Monitoring | Smart Energy Management |
| Protection | Multiple Safety Protections |
✔ 2.5kWh Battery Storage System
✔ Connection Cables
✔ User Manual
✔ Installation Accessories
Make the most of your solar energy. Store it today, use it anytime.
1. Do not charge beyond the maximum charging rate.
2. Do not disassemble or modify the battery.
3. Do not throw or hit the battery.
4. Do not pierce the battery with sharp objects (such as nails, knives, pens, electric drills).
5. Do not mix with other types of batteries or modular units.
6. Do not excessively squeeze the battery during use.
7. Do not place the battery in a high temperature greater than 60°C.
8. Do not use conductive materials to connect the positive and negative terminals (such as metals, wires)
More any questions about the BetterESS Power Battery?
Email: service@better-ess.com
| Model | BalconyFlow 2500 (2.5kWh Balcony Solar Storage System) |
| Dimensions | 550 × 350 × 180 mm |
| Weight | Approx. 25kg |
| Battery Type | LiFePO4 (Lithium Iron Phosphate) |
| Battery Configuration | 16S1P |
| Nominal Capacity | 50Ah |
| Nominal Energy | 2.56kWh (Rated 2.5kWh) |
| Nominal Voltage | 51.2V |
| Battery Voltage Range | 44.8V - 57.6V |
| Rated Output Power | 1200W |
| Max Output Current | 25A |
| Charging Method | Solar Charging / AC Charging (Optional) |
| Max Charging Power | 1200W |
| Battery Management System (BMS) | Built-in Intelligent BMS with Multiple Protection |
| Communication | WiFi / Bluetooth (Optional) |
| Monitoring | Mobile APP & Smart Energy Management |
| Installation | Plug & Play Installation |
| Operating Temperature | Charging: 0℃ to 45℃ Discharging: -20℃ to 50℃ |
| Storage Temperature | -20℃ to 60℃ |
| Cycle Life | >6000 Cycles |
| Protection | Over Charge, Over Discharge, Over Current, Short Circuit, Over Temperature Protection |
| Application | Balcony Solar System / Home Energy Storage / Micro Inverter System |
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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.
