Goal Zero Yeti 700
677.37 Wh, 600 W
Fossibot F800
Power station · FOSSiBOT. Specs from the manufacturer page (checked ).
The Fossibot F800 is a 512 Wh portable power station with 800 W pure sine wave AC output. It uses LiFePO4 batteries rated for more than 3,500 cycles to 80%, and the manufacturer gives it a 5-year warranty.
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Capacity
512Wh
Continuous
800W
Peak / surge
840W
Solar input
200W
Chemistry
LiFePO4
Cycles
3500
Warranty
5yr
Key features
- 800W pure sine wave AC output; overload protection activates when the load reaches 840W
- 8 outputs for charging multiple devices at once
- AC charge in 1.5 hours (400W AC charge); AC + solar in 1.2 hours; solar in 2.5 hours with up to 200W solar input; car charging in 4.5 hours
- MPPT solar charge controller
- Can be recharged while in use
- Fans keep the batteries cool at around 50dB at 1 meter
- Auto-adjusts between 50Hz and 60Hz, with manual switching available
- Use and charge range 0-40°C (32-104°F); discharge range -15-40°C (-4-104°F)
Specifications
| Capacity | 512 Wh |
|---|---|
| Continuous output | 800 W |
| Peak / surge | 840 W |
| Solar input | 200 W |
| Battery chemistry | LiFePO4 |
| Cycle life | 3500 cycles |
| Noise | 50 dB |
| AC charging | AC Charge in 1.5 Hours |
| AC output voltage | 100-120V |
| Warranty | 5 years |
From the Fossibot page. Values the manufacturer does not publish are left out.
How long it runs common appliances
| Appliance | Watts | Runs? | Hours |
|---|---|---|---|
| Refrigerator (with freezer) | 120 W (600 start) | yes | 9.7 h |
| Chest freezer | 100 W (500 start) | yes | 14 h |
| CPAP (no humidifier) | 35 W (40 start) | yes | 12 h |
| Gas boiler (pump + controls) | 120 W (300 start) | yes | 6.8 h |
| Wi-Fi router + modem/ONU | 12 W | yes | 34 h |
| Starlink (standard dish) | 60 W (100 start) | yes | 6.8 h |
| TV 50" | 75 W | yes | 5.4 h |
| Sump pump 1/2 HP | 920 W (2150 start) | surge too high | — |
| Well pump 1/2 HP | 880 W (2000 start) | surge too high | — |
| Space heater 1500 W | 1500 W | surge too high | — |
Assumes 88 % inverter efficiency, 90 % usable capacity and typical duty cycles. Build your own list in the calculator.
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Fossibot F800 comparisons
- F800 vs Goal Zero Yeti 700
- F800 vs Goal Zero Yeti 500
- F800 vs Bluetti AC50B
- F800 vs Westinghouse iGen600s
- F800 vs Bluetti AC60
- F800 vs Bluetti AC60P
Connection and wiring
We have not linked an official manual for this model yet; see the Fossibot page.
Error codes and troubleshooting
We have not found an official code table for this model yet.
FAQ
How long will the Fossibot F800 run a refrigerator?
About 10 hours for a typical 120 W refrigerator that runs 35 % of the time, after inverter and depth-of-discharge losses.
Can the Fossibot F800 start a sump pump or well pump?
Starting surge matters more than running watts: this unit is rated 840 W peak. That is below a typical 1/2 HP sump pump start (about 2150 W); check your pump label. Use the calculator with your exact pump.