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Expansion Battery · 3,072Wh
Flexible Charging Options: Experience rapid recharging of the BLUETTI B300 with a maximum 200W solar input, thanks to its integrated MPPT technology. Furthermore, it supports AC, car, and lead-acid battery charging, with the latter requiring the D050S adapter.
Versatile Power Supply: From smartphones and laptops to fans, lights, refrigerators, and microwave ovens, the BLUETTI B300 caters to your diverse power needs. Utilize its specific output ports, including the 100W USB-C, 12V/10A cigarette lighter, and 18W USB-A ports.
Expandable Battery Capacity: Equipped with a 3,072Wh capacity and boasting over 3,500 life cycles with LifePO4 battery cells, the B300 retains up to 80% of its original capacity. Moreover, when paired with BLUETTI AC200MAX, AC200P, or AC300 series products, it can double, triple, or even quadruple its total capacity.
Home Backup and Travel Companion: Whether you're hosting a family gathering or embarking on a camping trip, the B300 serves as your reliable backup power supply or portable power bank. It effortlessly fuels your home and camping essentials, allowing you to fully immerse yourself in enjoyable moments.
| 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) |
| 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 |
| AC | ≈ 6.5~7 Hours at 500W |
| Solar | ≈ 15.5~16 Hours at 200W |
| 12V/24V Car Outlet | (100W/200W): ≈ 30 or 15 Hours |
| AC + Solar | ≈ 5 Hours at 700W |
| Solar + Solar | ≈ 5 Hours at 700W (D050S DC Charging Enhancer REQUIRED) |
| Dual AC | ≈ 5 Hours at 700W (Extra adapter REQUIRED) |
| 240V Split Phase Bonding | Yes, work with AC300 |
| 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 | UL2743, UKCA, RCM, PSE, FCC, CE |
| Warranty | 48 Months |
Unfortunately, BLUETTI B300 3,072Wh LiFePO4 Expansion Battery is sold out at the moment. Here are the closest models you can get at a good price today. Sorry for the inconvenience!
Just received my new AC300... Looking forward to sharing my experience.
(Review from www.bluettipower.com)
Been using the AC300 for two years with one B300 for boondogging while RV camping. Recently got a second B300.
Second Bluetti purchase and very pleased with quality and expandability. Using right now for home backup but intend to add capacity for ongoing supplemental power from solar panels.
(Review from www.bluettipower.com)
You know them, you love them, but both you & I know how danged expensive they are!
Bluetti should consider videos to help with set-up and trouble shooting. If they're available, we didn't see them and used many of the youtube consumer vids to understand why our hookup and then charging wasn't optimal.
We really appreciate the LAAF program that assists African families, but we are not 10 yr olds who need a trophy that is a cost to produce and mail. And what the hell are we supposed to do with it? Stick with a certificate of some sort.
We would have given you 5 stars w/o these two issues.
(Review from www.bluettipower.com)
Has good capacity. It powers my sump pump and two freezers. Works great in UPS mode for the occasional power outages. The unit it large and heavy, which I knew prior to purchase. A service cart works great to put the unit on. Would buy again.
(Review from www.bluettipower.com)
I recently received my 2nd Bluetti AC30+B300 combo to po wer my RV off grid. I have been well pleased with the power potential. With 600 w of portable solar panels, I’m able to use all my appliances, including AC. It also keeps all my electronics charged.
(Review from www.bluettipower.com)
Installing the solar arrays this weekend. (2) sets of 4, 240 watt panels. My last solar generator is a Titan with 8000 watt hours which has been bullet proof but lacks all the fancy features of this unit. Couldn’t pass up the Prime Days special on this. It‘s going into an off grid cabin on the same property.
(Review from www.bluettipower.com)
Love this solution for power outage
(Review from www.bluettipower.com)
This is a great setup. Live in Florida and the county we live has several power outages every year. We live in a fairly rural area and are nearly last to get the power restored. The Bluetti has saved our frozen food.
(Review from www.bluettipower.com)
Using for power trailer and also for construction, using power tools
Fixing trailer for food sales during July 04 celebration
Lot of rain but it was running all equipment for 8hours and still 35% left
(Review from www.bluettipower.com)
Great Solar battery solution for Montana off grid cabin!
(Review from www.bluettipower.com)
Added a second battery to our system - got a good workout this morning when our power went out at midnight.
Just finished bench testing the ac300-b300. Performs better than expected. Easy to connect and easy to use. Love the app!!
(Review from www.bluettipower.com)
Arrived on time and no issues setting it up
(Review from www.bluettipower.com)
I was so happy with my Bluetti AC300+B300 purchase that I bought another B300 to double the power of my system. All cables and connections are extremely high quality and everything fit perfectly in a utility cart and it makes my system very portable.
(Review from www.bluettipower.com)
I bought this system to test out Back up power systems based on the reviews I researched. I like the idea of having an Uninterruptable Power Source (UPS) system for critical systems in my home. I also like the idea of starting small and less expensive and adding capacity based on real life energy needs. I have the AC300 w/ 1 A300 battery. So far I'm using it to act as a backup power source for our deep freezer. Based on the performance and reliability I see, I will then have the option to grow the system to cover other systems. So far I'm impressed.
(Review from www.bluettipower.com)
We live in North Port, FL where Hurricane Ian just passed through and received about five hours of relentless winds and flooding. Every gas station within reach either didn't have gas or had a 4 to 6 hour wait w/no guarantees of getting any. The AC300 with only one 3kw pack allowed us to live quite comfortably and kept our food in the refrigerator and chest freezer good. We also used our microwave and air fryer during the day quite a bit as well as the TV and PS3 to watch movies. I bought 6 used panels for two 810 watt arrays, slightly undersized for what the MPPT's can handle, but they worked perfectly and produced 5-7 KWH each day after the storm. As far as my wife and I see it, this thing paid itself off and we just bought it a few weeks prior to the storm.
(Review from www.bluettipower.com)
Adding this one to my AC300+B300.
Love your system. Now have the AC300 and two B300.
Free shipping on all orders within the mainland US (Hawaii, Alaska and overseas territories excluded - a freight forwarder is required). Orders ship directly from our brand partners' warehouses across the U.S. Order confirmation is emailed immediately; if an item is unexpectedly backordered we notify you before your card is charged. In-stock items are processed within 1-4 business days (cut-off 4:00 PM EST), transit is 3-6 business days, and tracking is emailed within 24 hours of shipment. Typical delivery is 4-10 business days from purchase. Minimum order value is $69.
You have 30 days from the delivery date to initiate a return (35 days for orders placed Nov 25-30 and Dec 25-31). Items must be unused, in original packaging with tags attached, and returns require prior authorization from our team.
To start a return: +1 (307) 317-7213, hello@ecosolarkits.com, or live chat. Read the full return and refund policy
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