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BLUETTI B300 Expansion Battery | 3072Wh

Brand: Bluetti

Regular price
Sale Price: $2,099.00
Regular price
List Price: $2,299.00
Sale price
Sale Price: $2,099.00
Apply the Discount Code SPRING5 at Checkout to Receive an Additional 5% Off | Ends:
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Fast & Free Shipping

Fast & Free Shipping

We offer fast & free shipping on most orders over $50 (before taxes, if applicable) to the continental United States. Some oversize/overweight products may incur a shipping charge.

All in-stock items will ship in two days or less.

Shipping Information

Please ensure the shipping information provided at checkout is accurate. We are not responsible for any losses, including missing parcels, package damage, losses as a result of delay, and other losses caused by incorrect shipping information that customers have provided.

A physical address is required. We do not ship to P.O. Boxes or APO/FPO/DPO addresses.

Order Confirmation

As soon as you place your order, you will receive an order confirmation e-mail.  This means that we have received your order in our system and your payment method is pre-authorized for the purchase.

Then, we automatically reach out to our suppliers to confirm that it is in stock and available for immediate shipment.  If your item is on backorder or unavailable, we will void the pre-authorization and reach out to you via e-mail.  If your item(s) are available for immediate shipment (within 2 business days), we will process the charges and submit the order for shipment.

Order Shipment

Please contact us for expedited shipping, or shipping to Alaska, Hawaii, and Puerto Rico.  These options are limited depending on the product.

We do not ship products to American Samoa, Micronesia, Guam, Marshall Islands, the Northern Mariana Islands, or the U.S. Virgin Islands at this time.  We also do not ship outside of the United States at this time.

If your order is in stock and we process the charges to your credit card, it will ship within two business days from the date of your order.  We will send you tracking information within 24 hours of your order leaving the warehouse to the e-mail address you provided when checking out.  If you do not receive tracking information from us within three business days of your order, feel free to follow up with us at

All delivery times provided by Outbound Power or by the shipping carrier are estimates.  Delivery times are subject to acts of nature and other unforeseen circumstances.  Refunds are not provided due solely to order deliveries outside of the estimated delivery window.

Last Updated: 12-28-2022

Hassle-Free Returns & Exchanges


We strive for a stress-free, hassle-free return process.

In order for the process to take place as smoothly as possible, we ask all customers to observe the following requirements.

  1. We have a 30-day return policy, which means customers have 30 days after the date the item shipped to request a return. Unfortunately, we are unable to accept returns beyond 30 days after the item shipped.
  2. Most items are easily returned within 30 days of the shipment date. To initiate a return, please contact us at If the return is accepted, we will send the customer a return shipping label as well as instructions on how and where to send the package. Items sent back to us without first requesting a return will not be accepted.
  3. To be eligible for a return, the item must be in the same condition as it was received and in its original packaging.
  4. We may ask for confirmation of certain details as to why an item is being returned for verification or if a warranty request is involved.
  5. The customer is responsible for return shipping costs. We do not charge restocking fees.
  6. To assure your refund please use a trackable mail service. We are not responsible for lost or missing packages.


Upon the receipt of the return package, the item will be examined and a full refund will be issued to the original method of payment. A refund receipt will be emailed to the email address provided during the original purchase.

Refunds are processed as soon as the refund request is approved - that means that the money leaves our account immediately. If a refund has not yet been received, first check the bank account again. Then contact the payment method company as it may take some time before the refund is officially posted. We have seen some credit card companies take up to 30 days to show that the refund has been put back on the card. 


The fastest way to exchange an item is to order it separately when the return is accepted.  Depending on inventory availability, we may be able to initiate a direct order of the exchange product after the original item is returned.


Cancellations are accepted up to the point of shipment. If the order has shipped, the customer is responsible for return shipping charges. Refunds are only issued to the original purchase method.


The customer must inspect the packaging on arrival.  If damage is present, the customer should make note of it when signing for delivery. If the item arrives damaged, the customer must send photos to and we will process an insurance or warranty claim on the customer's behalf.

Last updated: 3-25-2023

Easy Product Financing

Shop Pay

Buy now, pay later with Shop Pay!

We are pleased to partner with Shop Pay to provide our customers with the ability to finance products on the Outbound Power store over $50.*

When you select Shop Pay at checkout, you may split your total purchase into 4 interest-free payments. No added interest or fees when you pay on time!

Choose Shop Pay at checkout to support carbon removal projects at no extra cost.

*Rates from 0% APR or 10-36% APR. Payment options through Shop Pay Installments are subject to an eligibility check and are provided by these lending partners: []. Options depend on your purchase amount, and a down payment may be required. State notices to consumers [].

The BLUETTI B300 Expansion Battery features 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.

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.

BLUETTI B300 Expansion Battery 3,072Wh - Flexible Recharging

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 3,072Wh - Versatile Power Source

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.

BLUETTI B300 Expansion Battery 3,072Wh - Battery Modules

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.

BLUETTI B300 Expansion Battery 3,072Wh - Camping

Never Run Out of Power

The BLUETTI B300 is suitable for various occasions.

BLUETTI B300 Expansion Battery 3,072Wh - Camping Outdoors

BLUETTI B300 Expansion Battery 3,072Wh - Skiing

BLUETTI B300 Expansion Battery 3,072Wh - Overlanding

BLUETTI B300 Expansion Battery 3,072Wh - Tent Camping



  • Capacity:¬†3,072Wh (51.2V, 60Ah)
  • Type:¬†LiFePO4 (Lithium Iron Phosphate)
  • Life Cycles:¬†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 Adatper + Solar Input Simultaneously


  • AC:¬†‚Čą 6.5~7 Hours at 500W
  • Solar:¬†‚Čą 15.5~16 Hours at 200W¬†(With prime sunshine, ideal orientation and low temperature)
  • 12V/24V Car Outlet (100W/200W:¬†‚Čą 30 or 15 Hours
  • AC + Solar:¬†‚Čą 5 Hours at 700W
    (With prime sunshine, ideal orientation and low temperature)
  • Solar + Solar:¬†‚Čą 5 Hours at 700W (D050S DC Charging Enhancer REQUIRED)¬†(With prime sunshine, ideal orientation and low temperature)
  • Dual AC:¬†‚Čą 5 Hours at 700W (Extra adapter REQUIRED)


  • 240V Split Phase Bonding:¬†Yes, work with AC300
  • Pass-through Charge:¬†Yes
  • Weight:¬†79.6lbs (36.1kg)
  • Operating Temperature:¬†-4-104‚ĄČ (-20-40‚ĄÉ)
  • Storage Temperature:¬†-4-104‚ĄČ (-20-40‚ĄÉ)
  • Certifications:¬†UL Standard, CEC, DOE, FCC, CA Prop 65
  • Warranty:¬†48 Months (Enter to learn more about BLUETTI warranty policy)


  • Dimensions (LxWxD):¬†20.5 x 12.5 x 10.5in ( 52 x 32 x 26.6cm)

BLUETTI B300 Expansion Battery 3,072Wh - Dimensions

What's In The Box

BLUETTI B300 Expansion Battery 3,072Wh - What's In The Box

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