Bluetti B300K2 Expansion Battery | 2,764.8Wh
Bluetti B300K2 Expansion Battery | 2,764.8Wh
- Capacity2,764.8Wh
- Warranty4 years
- Free UK delivery on this order
- Authorised Bluetti dealerManufacturer warranty: 4 years
Delivery
£10 UK delivery on orders under £250, and free on orders of £250 or more. We deliver to England, Scotland, Wales and Northern Ireland, and email a tracking link once your order is on its way. Delivery details
Returns
You can cancel within 14 days of your order arriving and return it for a refund. Contact us within that time and we'll arrange the return. How returns work
Warranty
Covered by Bluetti's manufacturer warranty, with the period for this product listed in its specification. If it fails within 30 days of delivery, we'll arrange a replacement once the fault is confirmed. Warranty details
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Overview
Bluetti B300K2 Expansion Battery
2,764.8Wh of automotive grade LiFePO4, rated to 4,000 cycles. Doubles an Apex 300 to 5,529.6Wh, managed entirely by the host unit, and works as a standalone DC power source in its own right.
- 2,764.8Wh capacity
- 4,000+ life cycles, automotive grade LiFePO4
- Standalone outputs, use it as a DC power source with no host unit
- Seamless integration, no reconfiguration of an existing install
- 4 year manufacturer warranty
What it adds to an Apex 300
| Configuration | Capacity | Full time days from full |
|---|---|---|
| Apex 300 alone | 2,764.8Wh | 3.2 days |
| Apex 300 + 1 x B300K2 | 5,529.6Wh | 6.5 days |
| Apex 300 + 2 x B300K2 | 8,294.4Wh | 9.75 days |
Based on a full time daily draw of 850Wh: compressor fridge, diesel heater, lighting, laptop, phones and water pump.
Winter capacity
Between November and February a UK van roof generates a fraction of its summer yield, and consumption rises as the heater runs. Capacity is what carries a conversion between drives through those months. A second pack takes a typical build from three days of reserve to six and a half.
Payload note
Confirm your vehicle's remaining payload before ordering. We can advise on weight distribution and mounting for your chassis.
Buy as a system
The Apex 300 and B300K2 bought together saves 400 pounds against the individual prices.
The numbers that matter in a van
Figures from Bluetti's published specification. Anything wired into 230V mains should be signed off by a qualified electrician.
Build notes for this part
Get the sizing and fitting notes.
Useful product advice, installation considerations and occasional offers for this part of your van build.