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BLUETTI B300S Expansion Battery | 3,072Wh

BLUETTI B300S Expansion Battery | 3,072Wh

Regular price $3,179.00
Regular price Sale price $3,179.00
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BLUETTI B300S Expansion Battery | 3,072Wh

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.

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.

Expandable Battery Pack

As the companion battery pack to AC500, B300S has a capacity of 3,072Wh and lasts for 3,500+ cycles to 80% of its original capacity. Hook up 6*B300S with AC500, you'll get a powerhouse with 18,432Wh, enough to get you through a severe power outage.



In The Box

User Manual

BLUETTI B300S Expansion Battery | 3,072Wh User Manual

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BLUETTI B300S Expansion Battery | 3,072Wh

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BLUETTI B300S Expansion Battery | 3,072Wh

3,072Wh LiFePO4 battery for over 3,500 life cycles to 80%.
Standalone power station with 100W USB-C, 12V/10A car port and USB-A port.
Flexible charging via AC, solar and car power sources.
Responsive even in freezing days with Self-heating Function.
Compatible with AC500 for a maximum of 18,432Wh capacity.

BLUETTI B300S Expansion Battery | 3,072Wh Specification:


3,072Wh (51.2V, 60Ah)

Cell Chemistry:

LiFePO4 (Lithium Iron Phosphate)

Life Cycles:

3,500+ Cycles to 80% Original Capacity


Recharge to 80% Every 3-6 Months

Management System:

MPPT Charge Controller, BMS, etc.


USB-C Port:

1 x 100W Max.

USB-A Port:

1 x 18W

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 (AC + Solar), with D050S DC Charging Enhancer


Simultaneous Charge & Discharge:



83.3lbs (38kg)

Dimensions (LxWxD):

20.5 x 12.5 x 10.5in (52 x 32 x 26.6cm)

Operating Temperature:

-4℉-104℉ (-20℃-40℃)

Storage Temperature:

-4℉-104℉ (-20℃-40℃)


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


48 Months


Does B300S support App control?

Connect it to the AC500, pair them with BLUETTI App, and you can control the system at any time from anywhere.

What is the maximum input of the BLUETTI B300S?

1,000W (AC + Solar) with optional D050S DC Charging Enhancer*
* D050S Sold separately

Can I use B300S alone as a UPS?