BLUETTI B300S Expansion Battery - 3,072Wh (Only Works With AC500)

Boasting 3,072Wh of LiFePO4 battery capacity with over 3,500 life cycles capable of discharging up to 80%, the B300S Expansion Battery also features a 100W USB-C port, 12V/10A car port, USB-A port and Self-heating Function for use in freezing temperatures. Offering flexible charging via AC, solar and car power sources, it can be paired with the AC500 for extended use up to 18,432Wh.


At the moment, all of our products are open for pre-order. We anticipate that they will arrive by the end of August. 

$4,290.00 NZD

Technical Specification


Capacity:3072Wh (51.2V, 60Ah)

Cell Chemistry: LiFePO4 (Lithium Iron Phosphate)

Life Cycles: 3,500+ Cycles to 80% of Original Capacity

Management System: MPPT Charge Controller, BMS etc.

Shelf-life: Recharge to 80% Every 3-6 Months


USB-C Port: 1 x 100W Max.

USB-A Port: 1 x 18W12V

DC Outlets: 1 x  12V/10A (Car Outlet)
*All Regulated.


AC Input: 500W Max

Solar Input: 500W Max, VOC 12-60VDC, 10A

Car Input: 12/24V from Cigarette Lighter Port

Maximum Input: 1,000W, With AC Adapter + Solar, with D050S DC Charging Enhancer



Simultaneous Charge & Discharge: Yes

Weight: 83.3lbs/38kg

Dimensions (LxWxD): 20.5*12.5x8.10.5in/520x320x266mm

Operating Temperature: -4 ℉-104℉ (-20 - 40℃)

Storage Temperature: -4-104℉ (-20 - 40℃)

Certifications: UL Standard, CEC, DOE, FCC, CA Prop 65

Warranty: 48 Months


BLUETTI PV120S/PV200/PV350 (Solar Panel)


BLUETTI Folding Trolley

Flexible Recharging

BLUETTI B300S takes up to 500W AC, solar, or car charging. Combine AC with solar or car input, you can top up B300S in less than 3.5-4 hours with a maximum of 1,000W* input rate.*The D050S DC charging enhancer is required.

Versatile Power Source

You can power your smartphones, laptops, fans, lights, refrigerators and more with specific outputs-100W USB-C, 12V/10A cigarette lighter, and 18W USB-A.

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Responsive Even in Chilly Winter

Waking up electronics on a freezing day may be time-consuming. But with the Self-heating Function, B300S will automatically heat up to work actively and smoothly as usual.

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