Bluetti AC180 vs Bluetti AC2A
Side-by-side on the specs that decide it — surge, capacity, runtime and price.
Both models' specs verified against manufacturer listings · Last updated
The short answer
Bluetti AC2A costs $600 less. Whether that gap is worth closing depends on what you need to run.
- Bluetti AC180 holds 465% more energy (1152Wh vs 204Wh), so it runs the same load proportionally longer.
- Bluetti AC180 has 2100W more surge headroom (2700W vs 600W) — that decides whether a fridge, pump or AC compressor will actually start.
- Bluetti AC2A is 29.5 lb lighter (7.9 lb vs 37.4 lb).
- Bluetti AC180 is rated for 3,500 cycles vs 3,000 — meaningful if you cycle it daily.
Neither of these will start a sump pump or well pump — both surge below the ~3,400W those motors need. If home backup with pumps is your use case, look at higher-surge models instead of either of these.
A solid mid-size unit that competes on price rather than any standout spec. 1152Wh is a useful step above the 1kWh crowd.
Best for: Buyers who catch it on sale and want slightly more than 1kWh.
Where it falls short:
- 37.4 lb is heavy for its capacity
- 2700W surge is mid-pack
- Not expandable
One of the cheapest LiFePO4 stations on the market. 204Wh is tiny, but a 200W solar input that outpaces the capacity makes it a surprisingly capable little off-grid trickle unit.
Best for: Ultralight campers who recharge from a panel daily.
Where it falls short:
- 204Wh is genuinely small
- 300W output is device-only
| Spec | Bluetti AC180 | Bluetti AC2A |
|---|---|---|
| Price | $799 | $199 |
| Capacity | 1152 Wh | 204 Wh |
| Continuous output | 1800 W | 300 W |
| Surge output | 2700 W | 600 W |
| Battery | LiFePO4 | LiFePO4 |
| Rated cycles | 3,500 | 3,000 |
| Weight (lighter wins) | 37.4 lb | 7.9 lb |
| Max solar | 500 W | 200 W |
| Recharge time (faster wins) | 1h 30m | 1h 30m |
Runtime head-to-head
| Appliance | Bluetti AC180 | Bluetti AC2A |
|---|---|---|
| Refrigerator | 16.3 hrs | ❌ |
| Mini fridge | 31.1 hrs | 5.5 hrs |
| Chest freezer | 12.2 hrs | ❌ |
| CPAP machine | 24.5 hrs | 4.3 hrs |
| Sump pump | ❌ | ❌ |