solar › battery
bluetti Bluetti B300 Expansion Battery 3.0 kWh
48V slave-pack for AC300 / AC500. Standalone usable as a 12V/24V output bank via bypass — see Bluetti spec sheet.
Specifications
- capacity ah
- 58
- nominal voltage
- 51.2
- chemistry
- lifepo4
- cycle life
- 3500
- bms amps continuous
- 70
- comm protocol
- proprietary
- weight lb
- 79.4
Sources
- Manufacturer spec sheets (public PDFs and product pages) · ingest 2026-05-06
- Solar enthusiast community references (DIY Solar Forum public threads, Will Prowse YouTube spec summaries, Mobile Solar Power public guides) · ingest 2026-05-06