BLUETTI
B300K for AC200L/AC300
Adding storage to an AC200L or AC300 is what this battery is for. It is the B300K expansion battery in the version listed for the AC200L/AC300, rated by BLUETTI at 2,764.8Wh.
$1,199.20
BLUETTI B300 Expansion Battery | 3,072Wh
$1,119.20
In stockShips from Baton Rouge, LA30-day warrantyFrom delivery, on eligible productsFree shippingProcessing 1 business day after payment; delivery about 2–7 business days after dispatch
Shipping & delivery30-day returnsWarranty
Check local voltage, plug, installation, and product-certification requirements before ordering. We confirm compatibility and availability for your destination before payment.
Overview
With 3,072Wh of storage, the B300 expansion battery can add capacity to a BLUETTI system or run as a portable power source through its own DC ports. Its built-in MPPT also lets it recharge from solar directly.
Planning a system? Read our guide: How to size a battery backup system for your home.
Key benefits
- A 3,072Wh capacity adds substantial runtime to a backup setup.
- Built-in MPPT allows direct solar charging.
- It can power USB and 12V devices on its own.
Key features
- 3,072Wh capacity
- 100W USB-C, 12V/10A car output and USB-A ports
- Smart MPPT for solar charging up to 200W
- Recharges from a wall socket, car or lead-acid battery
- Car and lead-acid battery charging through the D050S
Ideal use
Adding capacity to a compatible BLUETTI home backup system, or powering DC devices off-grid.
Key specifications
- Model / SKU
- B300-UN-GY-BL-SPFUS
- Brand
- BLUETTI
- Category
- Batteries
- Voltage
- 12V
- Rated power
- 100 W
- Energy capacity
- 3,072 Wh
From the manufacturer
Features with a 100W USB-C, a 12V/10A car output and a USB-A ports, you can use the B300 as a portable power station. The smart MPPT inside of the B300 enables it to recharge quickly through solar power at a 200W maximum loading scale. You can also recharge it by wall socket, car charging or lead-acid battery. Car charging and lead-acid battery charging need to be realized through D050S.
Warranty terms mentioned in this description are the manufacturer’s. Our own coverage is the 30-day limited warranty.
Before you order
We confirm compatibility, installation requirements, and delivery details with you during order review, before any payment. Home electrical work may require a qualified installer.
Our team can confirm B300 compatibility with your BLUETTI power station. Message our team on WhatsApp.
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