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We offer FREE shipping on all orders to most countries and regions.
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 BetterESS 8kWh–40kWh Stackable High-Voltage Home Battery ESS is a modular energy storage solution designed for residential solar energy storage, backup power, and self-consumption applications.
With a stackable modular design and a wide DC voltage range from 25.6V to 400V, the system provides flexible capacity configuration while integrating a built-in DC-DC boost module for high-voltage energy storage applications.
With WiFi and Bluetooth connectivity, users can conveniently monitor battery status and system operating information.
Choose the capacity according to your household energy requirements. The modular design allows the system to be configured from 8kWh up to 40kWh, making it suitable for different residential energy storage needs.
The battery modules feature a space-saving stackable structure. Up to 5 layers can be combined to achieve a higher-capacity energy storage system while keeping the installation organized and compact.
The system supports a wide DC voltage range from 25.6V to 400V, making it suitable for high-voltage energy storage system configurations and compatible system architectures.
The integrated boost module helps convert the battery's lower DC voltage to the required high-voltage DC level, providing a practical solution for high-voltage solar energy storage applications.
Built-in wireless communication allows convenient monitoring of battery and system information through compatible monitoring functions.
You can check important operating information such as battery status, voltage, current, and other available system data.
The modular design makes it easier to configure the system according to actual energy requirements. It is suitable for both smaller residential applications and larger home energy storage projects.
The BetterESS High-Voltage Home Battery ESS can be used for:
Solar Panels → Solar Inverter / Energy Management System → Home Loads
Excess Solar Energy → BetterESS Battery → Energy Stored for Later Use
During periods of low solar production or higher household demand, the stored energy can be used to help supply household loads, depending on the inverter and system configuration.
The battery should be installed and commissioned according to the applicable electrical regulations and the requirements of the selected inverter.
Before purchasing, please confirm the battery voltage range, communication protocol, inverter compatibility, and system configuration to ensure proper integration.
Professional installation is recommended for high-voltage energy storage systems.
BetterESS provides modular battery solutions for home energy storage, solar applications, and DIY energy systems. Our products are designed to provide flexible capacity options and practical energy storage solutions for different residential applications.
Store more solar energy. Use your energy more efficiently. Build a flexible home energy storage system with BetterESS.
| Product Type | High-Voltage All-in-One Home ESS |
| Battery Capacity | 8kWh Per Layer |
| Total System Capacity | 8–40kWh |
| Battery Voltage | 25.6V |
| Working Voltage | 350–450V DC |
| Nominal High Voltage | 400V DC |
| DC-DC Conversion | Built-in Voltage Boost Module |
| Output Power | 4.2kW Per Layer |
| Maximum Stackable Layers | 5 Layers |
| Connectivity | WiFi + Bluetooth |
| Parallel Connection | Up to 16 Groups |
| System Design | Modular Stackable Design |
| Battery Management | Intelligent BMS |
| Monitoring | WiFi & Bluetooth Smart Monitoring |
| Protection | Overcharge, Over-discharge, Over-current, Short Circuit & Over-temperature Protection |
| Application | Home Energy Storage / Solar Energy Storage / Residential Backup Power |
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⭐⭐⭐⭐⭐ Review Great supplier! Excellent support and very fast delivery from the EU warehouse. The battery cells arrived in perfect condition, well packed, and the quality is top-level (A-grade). Communication was clear and professional the whole time. Highly recommended!
hese are really excellent and of the highest quality, highly recommended, and do not become unbalanced even when charging if they exceed 120/130Ah.
Excellent batteries, all perfect in terms of weight and current capacity.
good service, i had a littble problem with the address, seller helped me to solve. finished the install 2 days ago, everything ok
swietne ogniwa pojemnosć zmiezona 685.55ah fajne busbary elastyczne ogniwa proste
