Bluetti
BLUETTI B300 Expansion Battery 3072Wh
LOWEST PRICE PROMISE - In the rare scenario that you find this item cheaper elsewhere, please let us know. We will beat the price in most cases!
LOWEST PRICE PROMISE - In the rare scenario that you find this item cheaper elsewhere, please let us know. We will beat the price in most cases!
Click to read our Lowest Price Guarantee details.
Couldn't load pickup availability
FREE SHIPPING. Estimated delivery date is 3-10 days from the order date. We will email you tracking number once your order is shipped.
FREE SHIPPING. Estimated delivery date is 3-10 days from the order date. We will email you tracking number once your order is shipped.
Click to read our detailed Shipping Policy.
Share
Home backup and trip power bank, versatile power source - 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. Power your smartphones, laptops, fans, lights, refrigerators, microwave ovens, and so on with multiple output ports - 100W USB-C, 12V/10A cigarette lighter, and 18W USB-A output ports.
Flexible recharging options - You can recharge BLUETTI B300 quickly with 200W max solar input thanks to the built-in MPPT. Besides, it also supports AC (wall socket), car, and lead-acid battery charging. You need to buy a separate 500W AC adapter for AC (wall socket) charging. You need to buy a separate DC Charging Enhancer - D050S for car and lead-acid battery charging.
Expandable Battery Beast - On its own, B300 battery has 3072Wh capacity and the ultra durable LifePO4 battery with over 3,500 life cycles to 80% original capacity. This total capacity can be further boosted significantly by connecting upto two Bluetti B300 expansion battery modules with BLUETTI AC200MAX. You can also connect upto total four B300 battery modules to Bluetti AC300 to get a groundbreaking capacity of 12,288Wh!
Specifications
BATTERY INFO
Capacity: 3072Wh (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.
OUTPUT
USB-C Port: 1 x 100W Max.
USB-A Port: 1 x 18W USB-A
12V DC Outlet*: 1 x 12V/10A (Car Outlet)
*Regulated.
INPUT
AC Input: 500W Max. (Separate 500W AC adapter for AC (wall socket) charging required.
Solar Input: 200W Max., VOC 12-60VDC, 10A
Car Input: 12/24V from Cigarette Lighter Port (For car charging D050S DC Charging Enhancer REQUIRED)
Max Input: 700W, With AC Adapter + Solar Input Simultaneously
RECHARGE TIME
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)
GENERAL
240V Split Phase Bonding: Yes, only with AC300. Two units of Bluetti's AC300+B300 can be connected with the Fusion Box Pro(P030A) for 240V output and more power. Explore more here - AC300+B300
Pass-through Charge: Yes
Weight: 79.6lbs (36.1kg)
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℃)
Certifications: UL Standard, CEC, DOE, FCC, CA Prop 65
Click to view B300 User Manual
Package Contents
What's in the box?
Warranty
48 months warranty by the manufacturer
Product Gallery
Home Backup and Trip Power Bank

Versatile Power Source


Expandable Battery Pack

Frequently bought together
1. Buy B300 together with Bluetti's AC300 here - AC300+B300.
2. You can also buy Bluetti's AC200Max with B300 for expanding total capacity.
3. BLUETTI PV200 Solar Panel 200W - With its 200W max solar input, BLUETTI B300 can be charged with this solar panel.
4. For charging B300 with car and lead-acid battery, you need to buy a separate D050S DC Charging Enhancer.
5. For charging B300 via AC (wall socket), separate 500W AC adapter is required. You may buy T500 AC adaptor (500W) for charging B300 battery module via AC (wall socket).
FAQs
Can I use BLUETTI B300 expansion battery alone?A: Yes. It comes with a 100W USB-C, a USB-A, and a 12V car socket, providing power for phones, laptops, car refrigerators, etc.
How many B300 can I connect to AC300 or AC200MAX?
A: AC300: Up to 4 B300 for 12,288Wh capacity.
AC200MAX: Up to 2 B300 for 8,192Wh capacity.
Does B300 support App control?
A: Connect it to the Bluetti's AC300, pair them with BLUETTI App, and you can control the system at any time from anywhere.
Can I use B300 alone as a UPS?
A: No.
What is the maximum input charging power of the BLUETTI B300?
A: 700W Max. with optional D050S DC Charging Enhancer*
* Sold separately
Can I use car cigarette lighter or lead-acid battery to charge B300?
A: Yes, BLUETTI D050S DC Charging Enhancer* is required.
* Sold separately
Can I use third-party solar panels to charge the BLUETTI B300?
A: Yes, if the solar panels' specs fall in
1) Total Voltage: 12-60V
2) Total Power: 200W Max.
3) Include MC4 connectors.
Can it charge and discharge at the same time?
A: Yes.
Can I use or charge B300 in sub-zero temperatures?
A: Temperature ranges for B300 are:
Charge: 0-40℃ (32-104℉);
Discharge: -20-40℃ (-4-104℉);
Storage: -20-40℃ (-4-104℉).
Technically, it can power electrical devices under such situations, but please avoid charging it.
How long can it run my device?
A: Running time = Battery capacity × DoD × η ÷ Device rated power. DoD refers to Depth of Discharge and η is local inverter efficiency.
For B300, both DoD and η are 90%. If you run a 100W light bulb with it, the running time will be:
3,072Wh × 90% × 90% ÷ 100W ≈ 25hrs
Note: The above data is for reference ONLY.
Is B300 waterproof?
A: No. Also, please do NOT store it in a humid environment for a long time.
Is it possible to replace the built-in battery?
A: No. If the battery pack is faulty or even dead, please contact manufacturer BLUETTI's customer service.





Buying from us is great as you...
-
...shop from authorized retailer and receive excellent customer service always
-
...get manufacturer direct orders with all applicable warranties
-
...avail free and fast shipping as all orders ship from US
-
...are covered by our 30 days return policy
-
...pay no extra taxes or hidden charges at checkout
-
...have the peace of mind of 100% secure checkout