Manufacturer product image. Review the included items below.
Manufacturer product image. Review the included items below.
BLUETTI B300S
Expansion battery
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A 3,072 Wh LiFePO4 expansion battery that also works as a standalone power source.
- 3,072 Wh · Nominal battery capacity
- LFP · Battery chemistry
- 83.8 lb · Weight
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What this equipment is for
Adds capacity to the AC500 inverter. It can also charge devices through its own 100 W USB-C, USB-A and 12 V/10 A car ports.
What to check before buying
83.8 lb. BLUETTI lists it for the AC500. It is not compatible with other stations. The AC500 inverter and connection cable are sold separately.
Specifications
Expansion battery for AC500SKU P-B300S-US-GY-BL-010
Power & capacity
- Nominal battery capacity
- 3,072 Wh
- Battery chemistry
- LFP
- Cycle life (to 80% capacity)
- 3,500+ cycles
Connections & expansion
- USB-C maximum output
- 100 W
- Compatible equipment
- AC500
Dimensions & operating conditions
- Weight
- 83.8 lb
Manufacturer specifications for the selected configuration. Nominal battery capacity is not a runtime estimate.
Compare equipment.
| Equipment |  B300SExpansion battery for AC500View product |  BP2000 Gen 21 expansion batteryView product |
|---|---|---|
| Price | ||
| Nominal battery capacity | 3,072 Wh | 2,048 Wh |
| Weight | 83.8 lb | 15.3 kg |
| Battery chemistry | LFP | LFP |
| Cycle life (to 80% capacity) | 3,500+ cycles | 4,000 (≥80%) cycles |
| Compatible equipment | AC500 | C2000 Gen 2 |
| Manufacturer warranty | — | 5 years |
| USB-C maximum output | 100 W | — |
Your questions.
Who is this equipment for?
Adds capacity to the AC500 inverter. It can also charge devices through its own 100 W USB-C, USB-A and 12 V/10 A car ports.
What should I verify before choosing?
83.8 lb. BLUETTI lists it for the AC500. It is not compatible with other stations. The AC500 inverter and connection cable are sold separately.
What warranty applies?
Manufacturer warranty terms are on the BLUETTI product page. Warranty service is requested directly from BLUETTI, in the BLUETTI app or on its online service page.
What about delivery and returns?
Installation is separate. For a return or exchange, contact BetterPowered; it follows BLUETTI’s policies.
Which payment methods do you accept?
Pay securely by credit or debit card. Affirm and Klarna offer payment plans for eligible personal equipment purchases. Checkout shows the methods available for your order.
Can I finance my purchase?
Yes. Choose Affirm or Klarna at checkout for eligible personal equipment purchases. Review your payments and terms before accepting. For contractor-managed installation projects, ask about BetterPowered Capital. Financing is subject to eligibility and approval.
Can I place an order?
Yes. Add the equipment to your cart and complete secure checkout on the website or in the app. Review your delivery address, taxes, total and return terms before paying.