What it adds
An expansion battery adds watt-hours to a compatible power station without adding output: the base unit's inverter still limits how many watts you can run, but you can run them for longer.
Fit check before you buy
An expansion battery only works with the units its maker lists.
- ✓Compatible base unitConfirm the exact base model and version with the seller.
- ?Connection cableSome expansion batteries need a specific cable or adapter that may be sold separately.
- iWeightWeight was not stated in the sources we read.
Specifications
Each figure is labelled with where it comes from. Numbered references link to the source list below.
Published specifications
| Battery capacity | 4,960 Wh[S1] | Retailer listing |
|---|
Wattstanding calculations
| Price per kWh | $806 | Wattstanding calculation |
|---|
Limitations to weigh
- Specifications are the maker's or seller's; Wattstanding has not tested this product.
- Compatibility is the seller's statement; confirm it for your exact base unit and version.
- Prices change; confirm the price and what is included.
Alternatives worth comparing
Where to buy
Our link opens this exact product page. Prices and stock change; check before you order.
Every link opens the product page for this exact model. We may earn a commission; it never changes what we publish. Disclosure
Questions buyers ask
Will the Bluetti B500 4960Wh Battery Pack work with my power station?
Where can I buy the Bluetti B500 4960Wh Battery Pack?
Sources and verification
- Shop Solar Kits — Bluetti B500 4960Wh Battery Pack — product page and specifications Retrieved 30 Sep 2026
Wattstanding has not tested this product hands-on. This reference is compiled from the sources above; our calculations are labelled and show their working. Electrical work belongs to a licensed electrician. Last verified 30 Sep 2026. How we work




