HiBattery 4020 AC Solar Battery
HiBattery 4020 AC Solar Battery
0% VAT in Germany only. For other countries, please check VAT Rate by Country
4020 X and 4020 AC will be shipped within 1–3 business days. Battery modules are expected to ship starting August 31.
Features at a Glance
Features at a Glance
Plug-and-play design
4.02kWh capacity, up to 16.08kWh
10-year quality warranty
Max. 2500W inverter input power
800VA on-grid AC output
AI smart TOU mode
Why Buy from Hoymiles.com?
Why Buy from Hoymiles.com?
Direct from Hoymiles
Official Warranty Standards
Free shipping in Germany (3-7 days)
30-day money back
Secure and easy payment
Lifetime customer service
Couldn't load pickup availability
Feature Highlights
Easy Solar Energy Storage for Every Home
1*HiBattery 4020 AC
For 800-2000W Solar System
ldeal for studio flats or 1-2 person households for everyday outages or off-peak energy savings.
battery capacity
Family
max. annual savings
Annual Usage
1*HiBattery 4020 AC + 2*Battery Modules
For 6000W Existing Rooftop System
Designed for families of 3-4 in a semi-detached or larger home to cut your energy bills further.
battery capacity
Family
max. annual savings
Annual Usage
1*HiBattery 4020 AC + 3*Battery Modules
For 10kW Existing Rooftop System
For larger homes or high-demand households ready to take control for a solar-first lifestlye.
battery capacity
Family
max. annual savings
Annual Usage
Hoymiles AI-EMS for Extra 15% Revenue Boost
Hoymiles AI-EMS is a smart energy management system that optimizes solar generation, storage, and usage in real time. Using AI-driven TOU optimization and load shifting, it maximizes self-consumption and energy value. This helps improve system efficiency and can deliver up to a 15% revenue boost by using energy at the most valuable times.
Reliable Performance, Built to Last
Stable Output in Any Environment
HiBattery 4020 AC ensures reliable performance with IP66 protection. In summer, thermal conductive potting, large cooling fins, and CFD-optimized design improve heat dissipation with optional fan cooling. In winter, below 0°C, self-heating activates automatically to maintain optimal battery conditions and stable operation from -20°C to 55°C year-round.
Set Up With No Worry
Plug-and-Play Installation
HiBattery 4020 AC uses a plug-and-play AC-coupled design, allowing it to be easily connected through any standard socket and installed wherever needed in your home. With no complex rewiring required, it integrates seamlessly with existing solar systems, enabling fast setup and helping you start storing and using energy right away while reducing installation time and cost.
installation fee
100% Compatibility
HiBattery 4020 AC is fully AC-compatible, designed to work seamlessly with all major inverters and standard household sockets. It integrates easily into both new and existing solar systems, ensuring flexible installation without system modifications or complex setup.
compatible with solar systems
Installation Support Service
We provide professional support to ensure a smooth installation and seamless user experience. Our expert team is available via email, online chat, and phone to guide you step by step—from setup to everyday use—helping you get the most out of your system with confidence. Have any questions?
support service
More About Our Product
| Specification | Details |
|---|---|
| Battery Capacity | 4.02kWh |
| On-Grid Port | Max Input Power | 2500W |
| On-Grid Port | Max Output Power | 800W (Plug-in) / 2500W (Hardwired) |
| On-Grid Port | Rated output power | 800W |
| Off-Grid Port | Max Input Power | 2500W |
| Off-Grid Port | Max Output Power | 2500W |
| Max Charge and Discharge Power | 2000W |
| Battery Type | LiFePO4 |
| Life Cycles | ≥8000@70% SOH |
| Operating Temperature | -20 to 55℃ |
| Weight | 42kg |
| Dimensions | 520 × 384 × 199mm |
| Warranty | 10 years |
| Ingress protection | IP66 |
| Wireless Type | Bluetooth/2.5 GHz Wi-Fi |
Frequently Asked Questions
4020 X or 4020 AC, which is right for me?
The HiBattery 4020 X works with all solar panel systems, while the 4020 AC is designed for inverter-based setups. Choose 4020 X for direct PV connection. Choose 4020 AC if you already have an inverter system.
Is professional installation required, or can I set it up myself?
No professional installation is required. The HiBattery 4020 X and 4020 AC feature a simple plug-and-play design, allowing you to set it up yourself in just a few easy steps.
How many batteries can I connect together for more storage?
The HiBattery X and HiBattery AC both support expandable storage. You can connect up to 3 additional battery expansion modules, increasing the total capacity to a maximum of 16.08kWh.
How does Hoymiles build an ultimate safe energy storage system?
Hoymiles HiBattery delivers ultimate safety through a smart BMS, integrated fire safety system, pack-level DC/DC balancing, and IP66-rated protection for reliable operation in all environments.
How is the battery monitored (app, LCD, smart home integration)?
HiBattery 4020 X/AC can be monitored through the Hoymiles S-Miles App, which allows you to track real-time energy charging, usage, battery status, and system performance from your smartphone. It also supports smart home integration with platforms like Shelly and Everhome.
Who manufactures the battery, and do they have a good track record?
HiBattery 4020 is designed and manufactured in Hoymiles self-owned production facilities. Each battery is produced in-house under strict quality control standards to ensure consistent performance, safety, and long-term reliability.
Why are there two output power ratings (800 W and 2500 W)?
The available AC output depends on the installation method.
800W – Plug-and-Play installation via a standard household socket, subject to local regulations.
2500W – Professional installation via the household distribution board by a qualified electrician, where permitted by local regulations.
For professional installations that meet local requirements, the maximum output power can be increased to 2500 W in the S-Miles Home App.
