BLUETTI B300S Expansion Battery

  • Flexible charging via AC, solar and car power sources
  • Responsive even in freezing days with Temperature Adaptive Function
  • Hook up 6*B300S with AC500 for enough power to get you through a severe power outage
Adding to cart… The item has been added
FREE Shipping on all U.S. Orders
12 customers are viewing this product
Product Details

The Big Picture

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 the Cold

Waking up electronics on a freezing day may be time-consuming. But with the Temperature Adaptive 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.

Bluetti B300S Battery Specs

Capacity 3,072Wh (51.2V, 60Ah)
Cell Chemistry LiFePO4 (Lithium Iron Phosphate)
Cycle Life 3,500+ Cycles to 80% Original Capacity
Management System MPPT Controller, BMS, etc.
Charge Times  
AC Adapter ≈1-1.5 Hours
12V/24V Car Adapter ≈4.5-5 Hours / 2.5-3 Hours
1x Solar Panel 200W ≈2.5-3 Hours 
USB-C Output 1 x 100W Max
USB-A Output 1 x 18W
12V DC Outlets 1 x 12V/10A (Car Outlet), *All regulated.
AC Input 500W Max.
General Info  
Weight 83.8lbs
Dimensions 10.5 inches Height x 20.5 inches Width x 12.5 inches Depth
Operating Usage Temperature -4℉-104℉ (-20℃-40℃)

What's In the Box

Bluetti B300S, Battery Expansion Cable, Solar Charging Cable, User's manual

BLUETTI B300S Expansion Battery