Bluetti AC500 vs Goal Zero Yeti 1500X
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
These two cost the same, so the decision comes down to what you're powering.
- Bluetti AC500 holds 103% more energy (3072Wh vs 1516Wh), so it runs the same load proportionally longer.
- Bluetti AC500 has 6500W more surge headroom (10000W vs 3500W) — that decides whether a fridge, pump or AC compressor will actually start.
- Goal Zero Yeti 1500X is 20.5 lb lighter (45.64 lb vs 66.1 lb).
- Bluetti AC500 uses LiFePO4 while the other uses NMC — roughly double the usable cycle life.
- Bluetti AC500 is rated for 3,500 cycles vs 500 — meaningful if you cycle it daily.
If you plan to cycle the battery daily, think twice about the Goal Zero Yeti 1500X. Its NMC cells are rated for 500 cycles against the LiFePO4 rival's longer life — over years of regular use that's the more expensive unit, whatever the sticker says.
A modular home-backup system, not a portable unit — the AC500 has no internal battery at all until you add B300K packs.
Best for: Serious home-backup builds where you're designing a system, not buying an appliance.
Where it falls short:
- Requires separate battery packs to function at all — budget accordingly
- Total system cost climbs fast
The previous-generation flagship. Its NMC battery is the catch — far fewer cycles than the LiFePO4 units now around it, including its own replacement.
Best for: Only at a steep discount against the newer LiFePO4 Yeti 1500.
Where it falls short:
- NMC chemistry — roughly 500 cycles vs 4,000 for the new 1500
- 180-minute recharge is slow
- Only a 2-year warranty
| Spec | Bluetti AC500 | Goal Zero Yeti 1500X |
|---|---|---|
| Price | $1999 | $1999 |
| Capacity | 3072 Wh | 1516 Wh |
| Continuous output | 5000 W | 2000 W |
| Surge output | 10000 W | 3500 W |
| Battery | LiFePO4 | NMC |
| Rated cycles | 3,500 | 500 |
| Weight (lighter wins) | 66.1 lb | 45.64 lb |
| Max solar | 3000 W | 600 W |
| Recharge time (faster wins) | 1h 45m | 3h |
Runtime head-to-head
| Appliance | Bluetti AC500 | Goal Zero Yeti 1500X |
|---|---|---|
| Refrigerator | 43.5 hrs | 21.5 hrs |
| Mini fridge | 82.9 hrs | 40.9 hrs |
| Chest freezer | 32.6 hrs | 16.1 hrs |
| CPAP machine | 65.3 hrs | 32.2 hrs |
| Sump pump | 3.3 hrs | 1.6 hrs |