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Add 150% Capacity To Your Bluetti AC200Max

Expand your Bluetti AC200max with a BLUETTI B300 Expansion Battery. A massive 256Ah @12V.

  • 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.

Home Backup or Camping Power Bank

Whether in a family gathering or camping trip, B300 will serve as your backup power supply or power bank. It powers your home and camping necessities well, and all you need to do is enjoy the good times.

Versatile Power Source

You can power your smartphones, laptops, fans, lights, refrigerators, microwave ovens, and so on with specific output port – the 100W USB-C, 12V/10A cigarette lighter, and 18W USB-A output ports.

BLUETTI B300 Expansion Battery Specifications :

Capacity: 3072Wh (51.2V, 60Ah) or (256Ah @12V)
Type: LiFePO4 (Lithium Iron Phosphate)
Life Cycle: 3500+ Cycles to 80% Original Capacity
Shelf-Life: Recharge to 80% Every 3-6 Months
Management System: MPPT Controller, BMS, etc.
USB-C Port: 1 x 100W Max.
USB-A Port: 1 x 18W USB-A
12V DC Outlet*: 1 x 12V/10A (Car Outlet) *All Regulated.
AC Input: 500W Max
Solar Input: 200W Max., VOC 12-60VDC, 10A
Car Input: 12/24V from Cigarette Lighter Port
Max Input: 700W, With AC Adapter + Solar Input Simultaneously
AC: ≈ 6.5~7 Hours at 500W
Solar: ≈ 15.5~16 Hours at 200W (With prime sunshine, ideal orientation and low temperature)
12V/24V Car Outlet (100W/200W): ≈ 30 or 15 Hours
AC + Solar: ≈ 5 Hours at 700W (With prime sunshine, ideal orientation and low temperature)
Solar + Solar: ≈ 5 Hours at 700W (D050S DC Charging Enhancer REQUIRED)
Dual AC: ≈ 5 Hours at 700W (Extra adapter REQUIRED)
Pass-through Charge: Yes
Weight: 79.6lbs (36.1Kg)
Dimensions (LxWxD): 20.5*12.5*10.5 inch (52 x 32 x 26.6cm)
Operating Usage Temperature: -4-104℉ (-20-40℃)
Storage Temperature: -4-104℉ (-20-40℃)
Certification: UL2743, UKCA, RCM, PSE, FCC, CE
Warranty: 48 Months

Which Bluetti models are compatible with B300 ?


AC300/AC200/AC200P/AC200MAX/EB150/EP500Pro. Except for AC300, an additional accessory is required for each station.

AC200P: P090D to XT90 cable

EB150: P090D to DC7909 cable

EP500Pro: P090D to MC4 cable

How Many B300 can I connect with AC300 or AC200Max ?


AC300: Up to 4 B300 for 12,288Wh capacity.

AC200MAX: Up to 2 B300 for 8,192Wh capacity.


Weight 36.1 kg
Dimensions 52 × 32 × 26.6 cm


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