Catalog   /   Home & Renovation   /   Autonomous Power Supply   /   Portable Power Stations   /   BLUETTI

BLUETTI B300K Expansion Battery

Photos - Portable Power Station BLUETTI B300K Expansion Battery
Videos 12Photos 12
BLUETTI B300K Expansion Battery
Main
In boxbattery pack
Outputs
USB-A1 pcs
5В/2.4А
12 W
Inputs (station charging)
From solar panels
Battery and charging time
Battery typeLiFePO4
Battery capacity2764.8 W*h
Charging cycles4000 / DOD>80% /
General
Carrying handle
Operating temperature0 °C ~ +40 °C
Dimensions525x327x209 mm
Weight29.5 kg
Official Websitebluettipower.co.uk
Added to E-CatalogOctober 2024

Expansion battery module, designed to increase the total capacity of energy systems based on BLUETTI charging stations. Unlike full-fledged portable power stations, this is a standalone battery block without outlets and a large number of outputs, the main task of which is to extend the operating time of the main station. The module is equipped with an automotive-grade lithium iron phosphate battery with a capacity of 2764.8 Wh and a lifespan of over 4000 charge-discharge cycles before the depth of discharge falls below 80%, ensuring a long-term service life with daily use.

The BLUETTI B300K expansion battery is compatible with AC200L, AC200MAX, AC300, and AC500 charging stations, allowing flexible scaling of the energy system to meet specific needs. When connected to an AC500, the maximum total capacity of the assembly can reach 16588 Wh, which is sufficient for providing autonomous power supply for an extended period. The block can work not only as an expansion module but also as an independent power source thanks to the presence of one 12W USB-A port for charging mobile devices, tablets, or small gadgets.

The battery can be charged from solar panels or through the two specialized expansion ports. When working together with AC300 or AC500, the block charges to 80% in about 45 minutes. The case is made of aluminum with an integrated cooling system and advanced AI-BMS technology to monitor battery status. The module dimensions are 525x327x209 mm with a weight of 29.5 kg, and handles are provided for easy transportation.

The information in the model description is for reference purposes.
Always clarify the specifications and configuration of the product with the online store manager before purchasing.
Catalog BLUETTI 2026 - new arrivals, bestsellers, and the most relevant models BLUETTI.

Buy BLUETTI B300K Expansion Battery

When you make a purchase through links on our site, we may receive a affiliate commission.

B300K for Apex 300

Official partner BLUETTI
Bluettipower.co.uk
Delivery: in United Kingdom
Report
£1,199.00

BLUETTI B300K Expansion Battery | 2,764.8Wh

Official partner BLUETTI
Bluettipower.co.uk
Delivery: in United Kingdom
Report
£1,199.00

Bluetti B300k Solar Panel Battery

BLUETTI B300 Expansion Battery: Unleash Limitless Power for Your Off-Grid Camping AdventuresElevate your outdoor experience a... morend say goodbye to power anxiety with the BLUETTI B300, the ultimate modular expansion battery designed for the modern explorer. Whether you´re setting up a base camp for a week-long expedition, living the van life, or simply need a reliable power source for your weekend getaway, the B300 provides the massive energy reserve you need to power your essential gear and more. It is the perfect companion to your portable solar panel setup, transforming the sun´s energy into a steadfast and accessible power supply, day or night.Experience unparalleled energy freedom. The B300´s substantial capacity allows you to run everything from portable refrigerators and cooking appliances to lighting, drones, and camera equipment for extended periods. Built with state-of-the-art battery technology, it offers an exceptionally long lifespan, ensuring it remains a dependable part of your camping kit for thousands of adventures to come. This isn´t just a battery, it´s an investment in enduring and safe portable power.The true genius of the B300 lies in its incredible flexibility. It's designed to seamlessly expand the capacity of your existing BLUETTI solar generator, allowing you to create a power system tailored precisely to your needs. Start with one unit for significant power and scale up by adding more B300s as your energy demands grow, creating a truly formidable off-grid power station.One of its most groundbreaking features for campers is its ability to function as more than just an expansion unit. With versatile charging options, you can replenish its power from a wall outlet before you leave, from your vehicle while on the move, or—most importantly for true self-sufficiency—directly from your portable solar panels. Thanks to its integrated solar charge controller, you can harness sunlight to charge the battery independently, giving you complete energy independence far from the grid. Furthermore, it serves as a powerful standalone DC power source, equipped with its own dedicated output ports, including high-power USB-C, USB-A, and a 12V cigarette lighter port. This allows you to directly charge laptops, smartphones, and other 12V devices without needing the main power station, adding an incredible layer of convenience and versatility to your campsite.Main Features:* Expansive 3.072Wh power capacity to dramatically increase your energy storage.* Ultra-durable and safe LiFePO4 battery chemistry for superior longevity and performance.* Impressive lifespan of over 3.500 charge cycles to 80% capacity.* Fully modular and expandable design for a customizable power solution.* Versatile and fast recharging through AC, car, or solar power.* Integrated MPPT charge controller for efficient direct solar charging up to 200W.* Functions as a standalone DC power source for charging devices directly.* Features a 100W USB-C port, an 18W USB-A port,
Trekkinn
Delivery: in United Kingdom
Report
£1,237.99

BLUETTI AC300 + B300K Home Battery Backup | 3,000W 2,764.8Wh - AC300+B300K | 3000W Output | 2764.8Wh Capacity

Official partner BLUETTI
Bluettipower.co.uk
Delivery: in United Kingdom
Report
£1,799.00

BLUETTI AC300 + B300K Home Battery Backup | 3,000W 2,764.8Wh - AC300+B300K*2 | 3000W Output | 5529.6Wh Capacity

Official partner BLUETTI
Bluettipower.co.uk
Delivery: in United Kingdom
Report
£2,998.00
Video reviews