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Bluetti B300S Expansion Battery (Only Works with AC500)

$2,899.00 $4,159.00
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  • 3072Wh LiFePO4 battery for over 3500 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 18432Wh capacity.

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.



A useful guide to making the most of it all.

B300S Battery Module Tutorial

How to connect B300S to AC500?

How to connect the B300 to AC500?

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Bluetti B300S Expansion Battery (Only Works with AC500)

$2,899.00 $4,159.00


Battery Capacity: 3,072Wh (51.2V, 60Ah)
Battery Cell Type: LiFePO4 (Lithium Iron Phosphate)
Rated Life Cycle: 3,500+ Cycles to 80% Original Capacity
Shelf-life: Recharge to 80% Every 3-6 Months
Management System: MPPT Charge Controller, BMS, etc.
Simultaneous Charge & Discharge: Yes
Operating Temperature: -4℉-104℉ (-20℃-40℃)
Storage Temperature: -4℉-104℉ (-20℃-40℃)
Tested & Certifications: UL Standard, CEC, DOE, FCC, CA Prop 65
Warranty: 48 Months


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
Max Input: 1,000W (AC + Solar), with D050S DC Charging Enhancer


Dimensions (LxWxD): 20.5 x 12.5 x 10.5in (52 x 32 x 26.6cm)
Weight: 83.3lbs (38kg)


1 x B300s Expansion Battery
1 x Battery Expansion Cable (P150D)
1 x Solar Charging Cable (MC4 to XT90)
1 x User Manual
1 x Warranty Card
1 x Certificate Card
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