Extending the runtime of a Bluetti setup
The B300K is a battery module that complements a Bluetti power station or inverter built to accept expansion units. Its 2764.8 Wh adds to the energy already on hand, so your equipment keeps running for longer without a recharge. The precise list of compatible models and the number of modules allowed are given in the manufacturer’s manual; read it before committing to the whole combination. Also confirm that the expansion cable and the settings of your main system match this battery.
Uses at home and at work
Around the house
For a household that wants to ride out a power cut, the module helps keep the fridge, a connected boiler or a home-office desk running longer. Paired with solar panels, it also lets you set aside the surplus of the day.
In a professional setting
On a site without a mains connection, in a mobile workshop or at an outdoor event, an extra reserve saves repeated recharging and service interruptions.
Battery construction
This module uses LiFePO4 technology, with its capacity given both in amp-hours and in watt-hours: 54 Ah / 2764.8 Wh. The case measures 525 × 327 × 209mm, a long and shallow shape, and weighs +/- 29.5kg. That low profile makes it easier to tuck under a worktop, into a vehicle locker or beside a piece of technical furniture.
How to set it up
- Find a solid, level and dry surface suited to a weight of +/- 29.5kg.
- Leave room around the case for air movement.
- Shut down the main system before connecting anything.
- Plug in the expansion cable specified by the maker, then restart as described in the manual.
Connection to a dwelling’s electrical installation must be carried out by a qualified installer.
What sets this model apart
- A 2764.8 Wh reserve in a single module.
- LiFePO4 chemistry favoured for repeated use.
- A flat footprint that slips more easily into tight spaces.
Technical specifications
- Brand: Bluetti
- Battery type: LiFePO4
- Battery capacity: 2764.8 Wh
- Capacity: 54 Ah / 2764.8 Wh
- Dimensions: 525 × 327 × 209mm
- Weight: +/- 29.5kg
Safety precautions
Keep ventilation openings clear and keep the module away from heat and liquids. As no water-resistance rating is supplied, shelter it from rain and splashes. Observe the limits in the manual, use only suitable cables and switch the unit off after an impact, if it swells or if it gives off an unusual smell.
Care and storage
Wipe the case dry and check the connectors from time to time. For a long idle period, leave the module partly charged in a cool, dry and ventilated place and check its level periodically, in line with the usual advice from manufacturers. To move it, disconnect it, let it cool and lift it with two people. Avoid placing it directly on a damp floor or anywhere water can collect.
