1kWh Expansion Battery
- Capacity: 1.024kWh
- Host Output Limit: Up to 2.2kW from the host (pack does not add watts)
- Best For: Short trips & light loads
- Connection Style: Carry-together (portable)
Expansion Battery
Extra battery packs that plug into a compatible portable power station or home backup host when you need more runtime — not more watts.
What Is an Expansion Battery?
An Expansion Battery is an extra battery you add to a compatible power station or backup host when the built-in battery runs out too soon. It stores more energy so phones, lights, coolers, or home essentials keep running longer. It does not raise the host's output power by itself — watts still come from the main unit. Use this page to pick the right pack size, confirm your host model, see example runtime, and choose how the pack connects.
Our Products
Compare pack size, how long it can last under common loads, and which host output range it pairs with. The power number is the host limit — not power produced by the pack.
Capacity Options
2kWh Expansion Battery
- Capacity: 2.048kWh
- Host Output Limit: Up to 2.4kW from the host (pack does not add watts)
- Best For: Camping & outdoor backup
- Connection Style: Stack-on-top
3kWh Expansion Battery
- Capacity: 3.072kWh
- Host Output Limit: Up to 3.6kW from the host (pack does not add watts)
- Best For: Home backup essentials
- Connection Style: Side pack (external)
5kWh Expansion Battery
- Capacity: 5.04kWh
- Host Output Limit: Up to 5kW from the host (pack does not add watts)
- Best For: Long backup / multi-device
- Connection Style: Side pack (external)
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Compatible Main Units
These add-on packs work with selected SORYQEX portable power stations and backup hosts. Your host needs an expansion port and must support the pack size below. If your model is not listed, send the model name before you buy.
| Compatible Host | Recommended Add-on | Confirm Before Buy |
|---|---|---|
| 1000W Portable Power Station | 1kWh pack | Expansion port + matching cable |
| 1500W Portable Power Station | 1–2kWh pack | Expansion port + max capacity limit |
| 2000W Portable Power Station | 1–3kWh pack | Expansion port + cable type |
| 3000W Portable Power Station | 2–5kWh pack | How many packs the host allows |
| 4000W Portable Power Station | 3–5kWh pack | Max capacity + host output limit |
| Home backup host with expansion port | 3–5kWh pack | Exact model match on the datasheet |
Capacity & Runtime
A larger pack stores more energy, so devices run longer. The host still sets how many watts you can draw at once — the pack does not raise output power by itself.
| Capacity | Best For | Example Runtime |
|---|---|---|
| 1.024kWh | Short trips and light loads | About 5 h at 200W · 2 h at 500W · 1 h at 1kW |
| 2.048kWh | Camping and outdoor backup | About 9 h at 200W · 3.5 h at 500W · 2 h at 1kW |
| 3.072kWh | Home backup essentials | About 13 h at 200W · 5.5 h at 500W · 3 h at 1kW |
| 5.04kWh | Long backup and multi-device use | About 22 h at 200W · 9 h at 500W · 4.5 h at 1kW |
Connection Options
Pick the connection style that matches how you move and place the system. All styles need the matching expansion cable or port on your host.
| Format | How It Looks | Choose This When |
|---|---|---|
| Carry-together pack | A second battery case beside the station, linked by one cable | You take the host and pack camping or to a worksite |
| Stack-on-top pack | The pack sits on or under the host like stacked blocks | You want a small footprint on a compatible stackable host |
| Side pack | A larger battery box placed next to the host | You need longer home backup and can leave the pack in place |
| Cable-linked pack | Host and pack stay separate, joined only by the expansion cable | Your system uses a dedicated cable between host and pack |
Expansion Limits
Do not add packs past what the host allows. Check these limits first so the host can recognize and charge the pack safely.
| Limit Check | Plain Meaning |
|---|---|
| Max capacity the host accepts | If the pack is too large, the host may not charge it |
| How many packs the host allows | Some hosts take one pack only; others take two or more |
| Required cable type | The wrong cable can stop the host and pack from talking |
| Host output limit | Extra capacity does not increase watts — the host still caps power |
| Same battery model family | Mixing unrelated models on one host may not work |
Installation & Protection
The table below lists the installation and protection parameters for the expansion battery models shown on this page.
| Model | IP Rating | Rated Voltage | Drainage / Installation | Fire Protection |
|---|---|---|---|---|
| 1kWh Expansion Battery | IP65 | 51.2V DC | External Expansion Battery Connection | Built-in BMS |
| 2kWh Expansion Battery | IP65 | 51.2V DC | External Expansion Battery Connection | Built-in BMS |
| 3kWh Expansion Battery | IP65 | 51.2V DC | External Expansion Battery Connection | Built-in BMS |
| 5kWh Expansion Battery | IP65 | 51.2V DC | External Expansion Battery Connection | Built-in BMS |
Product Videos
Watch how a pack plugs into the host, how stack and cable setups look, and what longer runtime looks like in use.
How the pack connects to the host
Stack-on-top setup
Side pack with cable
Capacity upgrade demo
Portable backup use
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Contact UsFAQ
Can I add a pack to any power station?
No. It must match a supported host on this page (or your datasheet), plus the same expansion port and cable.
Does the pack increase output power (watts)?
No. It only adds stored energy and longer runtime. How many watts you can draw still follows the host.
What is the difference between an Expansion Battery and an expansion pack?
Same idea: an extra battery module for a compatible host. What matters is model match, port, and capacity limit.
Is a side pack portable?
Smaller carry-together packs are easy to move. Larger side packs are built for longer backup and stay with the host. Check weight and connection style.
How do I choose the right capacity?
Match your load and how many hours you need. Use the runtime examples (200W / 500W / 1kW), then confirm the host's max capacity.
Can I add a pack later?
Yes, if the host supports expansion. Confirm supported models, max capacity, and cable type before you buy.