Bluetti AC300 + B300K vs Bluetti Apex 300
A side-by-side look at the Bluetti AC300 + B300K and Bluetti Apex 300. Winning figures are highlighted.
| Bluetti Bluetti AC300 + B300K | Bluetti Bluetti Apex 300 | |
|---|---|---|
| Price from | £1,799 | £1,699 |
| Capacity | 2764.8 Wh | 2764.8 Wh |
| AC output | 3000 W | 3840 W |
| Surge output | 6000 W | 7680 W |
| Battery | LiFePO4 | LiFePO4 |
| Max with expansion | 11059.2 Wh | 33485 Wh |
| Max solar input | 2400 W | 2400 W |
| Weight | 51.1 kg | 38 kg |
| Cycle life | 4000 | 6000 |
Best value per row highlighted. Prices last checked 21 July 2026.
Bluetti AC300 + B300K
Splitting the inverter and battery into separate units is the point: the AC300 acts as a 24/7 UPS with 20ms switchover, and you scale storage independently by adding B300K modules. A flexible modular alternative to fixed-capacity flagships like the DELTA Pro 3.
Full Bluetti AC300 + B300K review →Bluetti Apex 300
The most expandable Bluetti here — a single base unit already outputs 3,840W, and linking 2-3 units with up to 18 battery modules gets you to a genuine whole-home 58kWh system. Automotive-grade cells give it a 6,000-cycle rating, the best of any home-backup unit in this catalogue.
Full Bluetti Apex 300 review →