Bluetti
Bluetti AC300 + B300K
4.2 2764.8Wh
A modular 24/7 UPS-style kit — the AC300 inverter head paired with one B300K battery — that expands with extra battery modules to over 11kWh.
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Specifications
| Capacity | 2764.8 Wh |
|---|---|
| AC output | 3000 W |
| Surge output | 6000 W |
| Battery | LiFePO4 |
| Max with expansion | 11059.2 Wh |
| Max solar input | 2400 W |
| Weight | 51.1 kg |
| Cycle life | 4000 |
Our verdict
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.
Pros
- 24/7 UPS with 20ms switchover
- Modular — scale battery separately from inverter
- 2,400W solar input
Cons
- Base kit output trails 4,000W+ flagships
- Inverter and battery bought/weighed as separate units