BLUETTI B300 Expansion Battery | 3072Wh

In stock
Sale price$3,899.00

• In stock and ready to ship
• 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

Battery Capacity: 3072Wh

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Customer Reviews

 Jo Varris

Generally a thumbs up!

The batteries appear to be working well. The flexibility of the AC300/B300 units would be improved by having battery input ports on both sides and the ability to plug a wind power system directly into the AC unit.

Andrew Matkovics

B300 Expansion Battery

Fantastic product extremely easy to use as a novice I can confirm! :)

Tuan Le

B300 Expansion Battery

Excellent service very fast delivery and fast reply by BLUETTI customer support. After one month test really love B300. Would recommend and try to have another one.


Pretty good

A few minor gremlins but happy with purchase


Great portable power setup that is quiet and fumes free. Makes for a much better environment to operate our field testing equipment by removing the generator. Bluetti customer service were very responsive and helpful in recommending a setup and the required cables to operate the B300 with AC200P

BLUETTI B300 Expansion Battery

Kevin Brooker

Still new to Solar Power. Have 2 batteries set up now. Looking to upgrade to 4 if all goes well.

Technical Specifications

Know the Technical Specifications of Bluetti B300 Expansion Battery.

  • Capacity: 3,072Wh (51.2V,60Ah)
  • Cell Chemistry: LiFePO4 (Lithium Iron Phosphate)
  • Life Cycles: 3,500+ Cycles to 80% Original Capacity
  • Shelf-life: 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
  • Outlets: 1 x 12V/10A (Car Outlet) *All regulated.

Flexible Recharging

You can recharge BLUETTI B300 quickly with 200W Max. solar input thanks to the built-in MPPT. Besides, it also supports AC, car, and lead-acid battery charging. The car and lead-acid battery charging need a D050S.

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.

Expandable Battery Pack

B300 has 3,072Wh capacity and over 3,500 life cycles with the LifePO4 battery cells, offering up to 80% of original capacity. Moreover, it will double, triple, even quadruple the total capacity with BLUETTI AC200MAX, AC200P, or AC300 series.

Home Backup and Trip 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.


B300 for Your Everyday Needs

Sustainable Living