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BLUETTI B300K 2764.8Wh Expandable/Standalone Battery for AC200L/AC300/AC500

LiFePO₄ Battery with 4000+ life cycles. 4 yrs Warranty.
US $999.00
as low as $89.69/mo with
Condition:
New
Out of Stock2 sold
Shipping:
Free Standard Shipping.
Located in: Chino, California, United States
Delivery:
Estimated between Wed, Nov 19 and Sat, Nov 22 to 94104
Delivery time is estimated using our proprietary method which is based on the buyer's proximity to the item location, the shipping service selected, the seller's shipping history, and other factors. Delivery times may vary, especially during peak periods.
Returns:
30 days returns. Seller pays for return shipping.
Payments:
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Direct from BLUETTI
Item sold directly by the brand. 
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eBay item number:286402844111
Last updated on Nov 11, 2025 18:50:58 PSTView all revisionsView all revisions

Item specifics

Condition
New: A brand-new, unused, unopened, undamaged item in its original packaging (where packaging is ...
Application
Agriculture/Farming, Back-up Power, Camping/Hiking, Commercial, Electronics, Home/Garden
Brand
BLUETTI
Charging Mode
MPPT (Maximum Power Point Tracking)
Color
Gray
Current Output
10 A or Less
Current Rating
3A-10A
Current Type
AC/DC
Features
All Daylight Conditions, Maintenance Free, Monocrystalline, Portable, Smart Module, USB Port
Item Length
20.67in
Model
Bluetti B300K
MPN
BLUETTI B300K
Net Weight
Approx. 29.5kg (65.04lbs)
Power
/
Size
525 × 327 × 209mm (20.67 × 12.87 × 8.23in)
Solar Technology
Monocrystalline
System Configuration
Grid-Tie
Type
Expansion battery
Voltage
100-120V
Warranty
4-year directly from Bluetti
UPC
193022000100
Category

Item description from the seller

About this seller

Bluetti US Official Store

98.6% positive feedback1.0K items sold

Joined Feb 2025
BLUETTI US, BLUETTI OFFICIAL, BLUETTI Official Store,Bluetti US Official Store are the authorized marketer of Bluetti® products on eBay.com, and directly represents the Bluetti® trademark owner. We ...
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Detailed seller ratings

Average for the last 12 months
Accurate description
4.9
Reasonable shipping cost
5.0
Shipping speed
4.9
Communication
5.0

Seller feedback (151)

All ratingsselected
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Product ratings and reviews

4.9
16 product ratings
  • 15 users rated this 5 out of 5 stars
  • 1 users rated this 4 out of 5 stars
  • 0 users rated this 3 out of 5 stars
  • 0 users rated this 2 out of 5 stars
  • 0 users rated this 1 out of 5 stars

Would recommend

Good value

Good quality

Most relevant reviews

  • Top favorable review

    works great, i wish the SOC setting kept...

    works great, i wish the SOC setting kept all batteries, regardless of their watt hour rating at the same percentages. i'm mixing two B300K with one B300 battery and the percentages are all over the place, but the average SOC is correct. I wish they were all consistent to each battery.

    Verified purchase: YesCondition: Pre-OwnedSold by: bluettidirect

  • Purchased 2 B300K batteries to add to my...

    Purchased 2 B300K batteries to add to my AC500. Plugged them in and turned the AC500 on. Worked instantly. No configuration needed. Latest firmware already installed. You will need to buy the BLUETTI P150D to P090D Cable separately to connect it to the AC500.

    Verified purchase: YesCondition: RefurbishedSold by: bluettidirect

  • Good technology for energy-grid independence

    This was the 4th B300 I have purchased via Ebay. The install addition to the other 3 B300 was straight forward and the added battery capacity is already showing lower electrical line watts being consumed.

    Verified purchase: YesCondition: Pre-OwnedSold by: bluetti_us

  • Great battery. Charged it to same penta...

    Great battery. Charged it to same pentagon as 3 others, then connected to power station, and it works perfectly.

    Verified purchase: YesCondition: Pre-OwnedSold by: bluetti_us_official

  • so far so good it’s doing its job. It’s ...

    so far so good it’s doing its job. It’s charging with my solar panel good working condition thank you

    Verified purchase: YesCondition: Pre-OwnedSold by: bluettidirect