Solar Battery
- Best For: Solar Self-Consumption / Nighttime Power / Essential Backup
- Load Support: Up to 3.84kW
- Backup Time: 4.6 Hours at 1kW Load
- Installation: Wall / Floor
Solar Battery
Store daytime solar energy for nighttime use, self-consumption and essential backup loads.
What Is a Solar Battery?
A solar battery stores surplus electricity generated by solar panels so it can be used after sunset or during a power outage. The correct choice depends on daily energy use, backup loads, inverter voltage and available installation space.
Storage Specs
| Product | Capacity | Load Support | Backup Time | Installation |
|---|---|---|---|---|
| Home Battery | 10kWh / 51.2V / 200Ah LiFePO4 | Up to 5kW | 1.6 Hours at 5kW Load | Wall / Floor |
| Solar Battery | 5.12kWh / 51.2V / 100Ah LiFePO4 | Up to 3.84kW | 4.6 Hours at 1kW Load | Wall / Floor |
| Complete ESS | 5kW Hybrid Inverter + 10kWh LiFePO4 | 5kW | 2 Hours at 5kW Load | Floor-Standing |
| All-in-One ESS | 10kW Hybrid Inverter + 15kWh LiFePO4 | 10kW | 1.5 Hours at 10kW Load | Floor-Standing |
| Expansion Battery | 48V / 100Ah / 4.8kWh | Up to 4.8kW DC | Adds 4.8 Hours at 1kW Load | Battery Rack / Cabinet |
Our Solar Battery
A 51.2V LiFePO4 battery for solar self-consumption, nighttime energy use and selected home backup loads.
Solar Battery
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How to Choose Home Energy Storage
Most people start with the same question: how much capacity do I actually need?
| What you mainly need | Typical capacity | Notes |
|---|---|---|
| Just keep lights, Wi-Fi, fridge running during short outages | 5–10 kWh | Enough for basic backup. Common in apartments and smaller homes. |
| Have solar and want to use more of your own power at night | 10–15 kWh | Most common range for regular single-family homes. |
| Longer backup or larger house | 15–30 kWh+ | Makes sense when you need more autonomy |
If average daily use is about 15–25 kWh, most people still land in the 10–15 kWh range. Size from overnight use or the outage you want to cover, not from the full daily total alone.
| Type | Best when… | Upside | Downside |
|---|---|---|---|
| Wall-mounted | You don’t have much floor space | Clean look, easy to install | Often one unit first; add a second later if usage is higher. |
| Floor-standing cabinet | You need higher capacity | More energy in one unit, easier to expand | Takes up floor space |
| All-in-one (battery + inverter) | You want a simpler system | Faster install, fewer components | Less flexible if you already have an inverter |
No single “best” option — it really comes down to your daily usage, whether you have solar, and how much backup you actually care about.
Practical Notes
| Point | Why it matters |
|---|---|
| Check inverter compatibility first | Voltage range and communication protocol have to match, or you’ll run into issues later |
| Installation location | Batteries don’t like extreme heat or cold, and they need some airflow |
| Critical loads vs whole-home backup | This decision affects system size and whether you need extra transfer equipment |
| Operating mode (if you have solar) | Self-consumption, backup, or time-of-use changes how hard the battery works |
| Professional installation | Has to follow local electrical code |
Not sure where to start? Send over your average daily usage, solar system size (if you have one), and what you mainly want the battery to cover. We can narrow it down from there.
Solar Battery Sizing
Choose battery capacity from the energy you need after sunset and the loads that must remain powered during an outage.
Solar Battery Sizing
| Daily solar surplus | Use the battery to store excess daytime generation |
|---|---|
| Nighttime energy use | Match usable battery energy to the evening load |
| Critical backup load | Size inverter output for the loads that must stay on |
| Battery voltage | 51.2V DC low-voltage battery platform |
| Recommended model | 5.12kWh nominal energy / 3.84kW max output |
Installation & Protection
The table below lists the documented specification for the Solar Battery product shown on this page.
| Model | IP Rating | Rated Voltage | Drainage / Installation | Fire Protection |
|---|---|---|---|---|
| Solar Battery | IP65 | 51.2V DC | Wall / Floor | Built-in BMS |
Inverter Compatibility
| Nominal voltage | 51.2V DC |
|---|---|
| Operating voltage | 44.8–57.6V DC |
| Communication | CAN / RS485 / RS232 |
| Maximum output power | 3.84kW |
View Batteries by Capacity
Capacity Guide
Runtime examples exclude inverter losses. Choose capacity by usable energy and backup at 1kW.
5.12kWh Battery
- Best For: Usable 4.61kWh
- Load Support: Backup 4.6 Hours at 1kW
- Backup Time: Solar Self-Consumption / Small Home Backup
- Installation: Wall / Floor
10kWh Battery
- Best For: Usable 8.0kWh
- Load Support: Backup 8.0 Hours at 1kW
- Backup Time: Home Backup / Daily Energy Storage
- Installation: Wall / Floor
15.36kWh Battery
- Best For: Usable 13.82kWh
- Load Support: Backup 13.8 Hours at 1kW
- Backup Time: Whole-Home Backup / Larger Loads
- Installation: Floor-Standing
30.72kWh Battery
- Best For: Usable 27.65kWh
- Load Support: Backup 27.6 Hours at 1kW
- Backup Time: Longer Backup / High Stored Energy
- Installation: Battery Rack / Cabinet
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Contact UsProduct Comparison
Home Battery
- Best For Home Backup / Daily Energy Storage
- Capacity 10kWh / 51.2V / 200Ah LiFePO4
- Load Support Up to 5kW
- Backup Time 1.6 Hours at 5kW Load
- Installation Wall / Floor
Solar Battery
- Best For Solar Self-Consumption / Nighttime Power
- Capacity 5.12kWh / 51.2V / 100Ah LiFePO4
- Load Support Up to 3.84kW
- Backup Time 4.6 Hours at 1kW Load
- Installation Wall / Floor
Complete ESS
- Best For Solar + Battery / Home Backup
- Capacity 5kW Hybrid Inverter + 10kWh LiFePO4
- Load Support 5kW
- Backup Time 2 Hours at 5kW Load
- Installation Floor-Standing
All-in-One ESS
- Best For New Solar + Battery Systems / Home Backup
- Capacity 10kW Hybrid Inverter + 15kWh LiFePO4
- Load Support 10kW
- Backup Time 1.5 Hours at 10kW Load
- Installation Floor-Standing
Expansion Battery
- Best For Longer Backup / More Stored Energy
- Capacity 48V / 100Ah / 4.8kWh
- Load Support Up to 4.8kW DC
- Backup Time Adds 4.8 Hours at 1kW Load
- Installation Battery Rack / Cabinet
Product Videos
Watch install, charging, expansion, and home backup clips for residential storage products.
Home Battery Installation
Installing a home battery for residential backup.
Solar Battery Charging & Discharging
Solar charging and evening discharge for home self-consumption.
All-in-One ESS Installation
Integrated battery + inverter system installation.
Expansion Battery Connection
Connecting expansion battery capacity to a compatible system.
Home Backup Test
Home backup runtime demonstration under household loads.
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Contact UsApplications
Nighttime Use
Store solar power for nighttime use with residential battery systems designed for solar homes.
Home Backup
Supply stored power during an outage. Battery capacity is measured in kWh; inverter output is measured in kW.
Solar Self-Consumption
Storage batteries store excess daytime solar power for evening use and backup.
Lower Grid Dependence
A residential storage system combines battery storage, an inverter, and system controls for daily energy independence.
System Expansion
Add battery capacity to a compatible existing system for longer backup and more stored energy.
Check System Compatibility
-
Confirm Solar + Inverter Fit
Match PV voltage, input current, MPPT range, and maximum PV voltage with the inverter.
-
Confirm Battery + Inverter Fit
Match battery voltage, BMS communication, charge/discharge current, and expansion limits.
-
Define Energy Target
Choose solar self-consumption, outage backup, or both.
-
Size From Use
Base capacity on nighttime energy and outage loads; usable kWh divided by load estimates runtime.
-
Plan Installation
Confirm location, protection, wiring, and service clearance.
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FAQ
What is home energy storage?
It stores solar or grid electricity in batteries for nighttime use and backup power.
What size battery do I need?
Size the battery from the energy required overnight or during an outage, not total daily electricity use alone.
Is a 10kWh battery enough for home backup?
Using 8kWh usable energy, it provides about 8 hours at 1kW, 4 hours at 2kW, or 1.6 hours at 5kW before inverter losses.
Can I add a battery to an existing solar system?
Yes, when the inverter, battery voltage, PV configuration, and BMS communication are compatible.
Can a battery back up the whole house?
Yes, when battery capacity and inverter output are sufficient for the connected household loads.
Can I add another battery later?
Yes, when the battery platform and inverter support parallel expansion.
What is the difference between a Home Battery and an All-in-One ESS?
A Home Battery requires a compatible inverter. An All-in-One ESS integrates the battery and inverter into one system.