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BLUETTI B300S Expansion Battery | 3,072Wh BLUETTI B300S Expansion Battery | 3,072Wh BLUETTI B300S Expansion Battery | 3,072Wh BLUETTI B300S Expansion Battery | 3,072Wh BLUETTI B300S Expansion Battery | 3,072Wh BLUETTI B300S Expansion Battery | 3,072Wh BLUETTI B300S Expansion Battery | 3,072Wh BLUETTI B300S Expansion Battery | 3,072Wh BLUETTI B300S Expansion Battery | 3,072Wh BLUETTI B300S Expansion Battery | 3,072Wh
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BLUETTI B300S Expansion Battery | 3,072Wh

4.9 (7 reviews)
US$1,499.00
US$1,499.00 US$1,999.00 - US$500.00

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  • 3,072Wh LiFePO4 battery for over 3,500 life cycles.
  • 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 Temperature Adaptive Function.
  • Compatible with AC500 for a maximum of 36,864Wh capacity. (2*AC500+12*B300S)
  • Works with AC500+B300 ( need to buy extra P150D to P090D cable )

Product Model:

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30 Days Price Match Guarantee

BLUETTI guarantees that we will refund you the difference if you find a lower price from us within 30 days of your purchase.

Price Difference Refund Requirements:

1. Valid purchase history within 30 days.

2. Email us a screenshot of the lower price.

3. Promotion period only.

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Why
Embrace Power Without the Strings
With our solar power station, you're in control—enjoy power on your terms, with the flexibility to cancel your subscription whenever you choose.
Energize Your Life, Not Your Expenses
Our subscription is the gateway to simplified solar power—enjoy the benefits without worrying about the costs of ownership.
US$1,499.00 US$1,999.00

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 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.

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PREVIEW


BATTERY INFO


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 40%-60% Every 3-6 Months

Management System:
MPPT Charge Controller, BMS, etc.

OUTPUT


USB-C Port:
1 x 100W Max.

USB-A Port:
1 x 18W

DC Outlets:
1 x 12V/10A (Car Outlet)
*All regulated.

INPUT


AC Input:
500W Max.

Solar Input:
500W Max., VOC 12-60VDC, 10A

Car Input:
12/24V from Cigarette Lighter Port

Maximum Input:
1,000W, with D050S DC Charging Enhancer

GENERAL


240V Split Phase Bonding:
Yes, Works with AC500

Simultaneous Recharge & Discharge:
Yes

Weight:
83.8lbs (38kg)

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

Operating Temperature:
-4℉-104℉ (-20℃-40℃)

Storage Temperature:
-4℉-104℉ (-20℃-40℃)

Certification:
UL2743, UKCA, RCM, PSE, FCC, CE

IN THE BOX


User Manual

BLUETTI B300S Expansion Battery | 3,072Wh User Manual

Download Download Now >

Customer Reviews

Based on 7 reviews
86%
(6)
14%
(1)
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L
L.B.

Arrived quickly

D
Donna Dzugas
Will the B300S tolerate the cold as advertised?

Last spring I purchased a AC500 with one B300S for a one room off grid sheshed/treehouse located in rural Vermont. It was used all summer and fall 2023 with no issues.
With the holiday sales in November I felt it was time to order a second B300S battery to begin expanding the system. I did it just in time, as the original B300S seems to not have tolerated the beginning of the winter in Vermont. It stopped accepting a charge. I am in the process of returning the first battery under warranty with customer service. They have been very helpful through emails; first to narrow down what the issue might be and instructing me to try different things. Now we are at the stage where I must pack up the battery properly to return it to be serviced under warranty. (Wish they were closer-more convenient) Customer service has been very helpful, though it does take a bit more time since it is through emails and not a phone conversation.
I am fortunate I had ordered the second battery so I could rule out that the AC500 had no issues. Plus now I have the proper packing material easily available to return the first battery.
Time will tell if this new B300S will hold up to the cold as they claim. The first one seemed not to tolerate the initial winter chill which at the coldest so far was only 9 degrees Fahrenheit.
Fingers crossed this can become a five star if it lives up to the claimed colder temperatures. It is why I invested in the B300S over the B300.

D
David Burris
B300S

So far, no issues to report. It arrived on time and in good condition - hoping to add it to the system this weekend.

R
Ray Abernathie
AC500/B300S

I purchased an AC500 (2) B300S' earlier this year. We recently experienced a power outage that lasted a week. I am thrilled with the performance of my setup, but I figured that I needed to add a little more capacity, so I purchased another B300S. Bluetti makes outstanding products.

M
Michael DeJarnette
Separate batteries for the AC500

With this system you can add more power over time as needed, plus the head unit is separate.

You can actually use these batteries on say, a camping trip without bringing the head unit, if you have items that can run on 12v cigarette lighter power or USB-C.

It has it's own Inverter so you can plug in solar panels or charge from your car battery or an AC outlet (needs an adapter).

FAQS

  • Q1: How does the Bluetti subscription work?

    The Bluetti subscription allows you to pay a monthly fee for your AC180 Solar Portable Power Station. You can cancel whenever you like and return your AC180 Solar Portable Power Station with no hidden fees. We send you a shipping label (return costs on us), and you return your AC180 Solar Portable Power Station in the original packaging.
  • Q2: What’s included with the Bluetti subscription?

    The Bluetti subscription includes a brand new or like-new AC180 Solar Portable Power Station (normally a $999 product to purchase) and a warranty for as long as you keep your Bluetti subscription for any issues that may arise, with the exception of user error or gross negligence.
  • Q3: Is this the same as financing or a rent-to-own program?

    This is not a rent-to-own program. When you cancel your Bluetti subscription, you are required to return your AC180 Solar Portable Power Station. The goal of the program is to provide ongoing value through a variety of benefits as well as new future products, not to create more options to buy a AC180 Solar Portable Power Station.
  • Q4: Can I cancel anytime? Are there any hidden fees?

    Yes, you can cancel your Bluetti subscription at any time. No contract, hidden fees, or gotchas. We cover the return shipping label as well.
  • Q5: What if I want to upgrade my BLUETTI AC180?

    This is not a rent-to-own program, as our Bluetti subscription includes flexibility, service components, future upgrade opportunities, and a lifetime warranty. However, you may still contact us if you are interested in purchasing your AC180 Solar Portable Power Station, as we are often able to create an option where a portion of your monthly payments to-date can be applied as a discount against the listing price.
  • Q6: What if the BLUETTIE AC180 is damaged?

    Please contact us as soon as possible. We will work with you to evaluate the cause, and with the exception of intentional, excessive, or grossly negligent damage, we will ship you a new product or component and cover shipping fees in both directions. Depending on the degree of user fault, you may be charged for replacement components, parts, or shipping fees. If you’d like further assistance, feel free to contact us at support@fragile.co.
  • Q7: How do I track my order status?

    Updates are sent to the email address you used to sign up. This includes: order in review, order approved, tracking number received (at which point you can opt for additional delivery status updates), out for delivery, and order delivered. Text messages are also sent for the initial order request and delivery of your package. If you’d like further assistance, feel free to contact us at support@fragile.co.

How-to

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/B300S to AC500?

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