Oukitel P800 vs Yoshino B660 SST
What is the difference?
The Oukitel P800 has 800 W of power, 1.6 kW peak, a 512 Wh battery. The Yoshino B660 SST has 660 W of power, a 602 Wh battery.
The Oukitel P800 uses a LiFePO4 battery, the Yoshino B660 SST a lithium-ion (NMC) one. LiFePO4 generally lasts more charge cycles, so the Oukitel P800 should last longer.
The Oukitel P800 is rated for 3500 cycles, the Yoshino B660 SST is rated for 4000 cycles.
The Oukitel P800 weighs 13 lb, the Yoshino B660 SST weighs 17 lb. The Oukitel P800 is easier to carry.
The Oukitel P800 has a 1-year warranty, the Yoshino B660 SST has a 5-year warranty.
Specs side by side
| Oukitel P800 | Yoshino B660 SST | |
|---|---|---|
| Capacity (Wh) | 512 | 602 |
| Continuous (W) | 800 | 660 |
| Peak (W) | 1600 | — |
| Solar input (W) | 200 | — |
| Chemistry | LiFePO4 | NMC |
| Cycles | 3500 | 4000 |
| Expandable | — | — |
| Weight (lb) | 13 | 17 |
| Warranty (yr) | 1 | 5 |
| Fridge run time | 9.7 h | 11.4 h |
| CPAP run time | 11.6 h | 13.6 h |
| Wi-Fi router run time | 33.8 h | 39.7 h |
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Specs as read from manufacturer pages on 2026-11-03 / 2026-10-31. Specs one maker does not list are left out of the comparison. Run times are for that appliance alone with a typical duty cycle, after inverter and depth-of-discharge losses. Sponsored links; we may earn a commission.
Common questions
Which has more capacity, Oukitel P800 or Yoshino B660 SST?
The Yoshino B660 SST. More capacity: 602 Wh vs 512 Wh.
Which is lighter, Oukitel P800 or Yoshino B660 SST?
The Oukitel P800. Lighter: 13 lb vs 17 lb.
Which has the longer warranty, Oukitel P800 or Yoshino B660 SST?
The Yoshino B660 SST. Longer warranty: 5 years vs 1 year.
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Compare other models → · All Oukitel models · All Yoshino models