FOSSiBOT F3600 Pro
A 3,840 Wh LiFePO4 portable power station with 3,600 W output and up to 4,200 W recharge, expandable with FB3840 batteries to 11,520 Wh.
- Best for expandable home backup
- Power station
- 3,840 Wh
- 3,600 W
- Made by FOSSiBOT.
- Capacity: 3,840 Wh with EVE LiFePO4 cells rated for over 6,500 cycles, expandable with FB3840 batteries to 11,520 Wh.
- Output: 3,600 W AC, with a UPS function of 2,500 W that switches in under 10 ms.
- Charges at up to 4,200 W from AC and solar combined: 2 hours from 2,200 W AC or from 2,000 W solar.
- Has wheels and an extendable handle. The page does not give its weight.
Not tested by us
We have not tested the FOSSiBOT F3600 Pro. The figures on this page come from the sources listed at the end of the page, checked on 11 November 2026, and we do not show prices. "Best for" is based on what the maker says the product is designed for, not on our own tests.
Key figures
3,840 Wh
Capacity, 11,520 Wh expanded
3,600 W
AC output
4,200 W
Maximum recharge power
Specifications
Last checked on 11 November 2026. The grey text under each name explains what the value means.
| Specification | Value |
|---|---|
| Storage | |
| CapacityHow much energy the battery stores. Bigger means longer runtime or more of your own solar power used later. | 3,840 Wh |
| Battery chemistryLFP (lithium iron phosphate) cells are known for long life and stable behaviour with heat. | EVE LFP (LiFePO4) |
| Cycle lifeHow many full charge and discharge cycles the cells are rated for before they hold less than the stated share of their original capacity. | More than 6,500 cycles. The capacity left after that is not stated. |
| ExpansionExtra battery units that add storage to the same system. | FB3840 expansion batteries, from 3,840 Wh up to 11,520 Wh (the page's figures are for one F3600 Pro with two FB3840 packs) |
| Output | |
| AC output (continuous)The power it can deliver all the time. Add up the watts of what you want to run at once and stay below this. | 3,600 W. The page does not give the number of sockets. |
| AC output (surge)A short burst above the continuous rating, for appliances that draw more power when they start. | Not stated |
| USB-APorts for phones, tablets and small devices. | The page lists USB outputs without ratings |
| USB-CPorts for laptops, phones and tablets. Power delivery up to 100 W can charge most laptops. | The page lists a PD 3.0 output without a rating |
| Car outletA 12 V socket like the one in a car, for car accessories. | A cigarette lighter output and a 12 V DC output; ratings not stated |
| Wireless chargingA pad on the unit that charges a compatible phone without a cable. | Not stated |
| Charging | |
| AC chargingHow fast it charges from a wall socket. Higher means a shorter wait. | 2,200 W (the page quotes 2 hours for a full charge) |
| Time to charge from the mainsHow long a full charge takes from a wall socket. | 2 hours with 2,200 W AC. The page also quotes 1.5 hours with up to 4,200 W of AC and solar combined. |
| Solar inputHow much solar panel power it accepts. A higher figure fills the battery faster on a sunny day. | 2,000 W (the page quotes 2 hours for a full charge). The XT60 and XT90 solar inputs are listed without voltage or current limits. |
| Solar charging timeHow long a full charge takes from solar panels, in the conditions the maker names. | 2 hours at 2,000 W (FOSSiBOT's figure; conditions not stated) |
| Car chargingCharging from a car's 12 V or 24 V socket while driving. Slow, but useful on the road. | 96 W, 40 hours for a full charge |
| Backup switchover (EPS)What happens when the grid fails. EPS means it takes over automatically. | Under 10 ms. FOSSiBOT states a 2,500 W UPS function. |
| Pass-through chargingWhether it can power devices while it is itself being charged. | Not stated |
| Housing and warranty | |
| Dimensions (L × W × H)Check the space before you buy, including room around it for airflow and cables. | Not stated |
| WeightMatters for lifting, wall mounting and moving it. | Not stated |
| Operating temperatureThe range it is rated to work in. Cold and heat can reduce performance. | Not stated. The page lists high and low temperature protection. |
| Noise levelFan noise while working. | Not stated |
| Protection ratingIP ratings show protection from dust and water. IP55 and IP65 are rated for outdoor-style exposure; check the installation guidance. | Not stated |
| WarrantyThe period the maker covers. Read the terms: conditions and capacity guarantees differ. | Not stated on the product page |
How long will it run your devices?
Choose how many of each device you want to run at the same time. The wattages are typical figures, so check the label on your own devices.
| Device | Typical power | How many |
|---|---|---|
| 10 W | ||
| 10 W | ||
| 15 W | ||
| 60 W | ||
| 80 W | ||
| 80 W | ||
| 40 W | ||
| 1,000 W | ||
| 2,000 W | ||
| 1,000 W | ||
| W |
The estimate assumes 85% of the rated capacity is usable after conversion losses. FOSSiBOT does not state this figure, so we use a cautious assumption. Real running times vary with temperature, battery age and how each device draws power.
Compatible with
What FOSSiBOT says this product works with. Anything not listed here is not confirmed.
- Extra batteries
- FB3840 expansion batteries, up to 11,520 Wh in total.
- Solar panels
- XT60 and XT90 solar inputs, up to 2,000 W.
- Generators
- Charges from a 1,100 W generator in 3.5 hours.
- App
- The FOSSiBOT app shows battery level and sets the charging time, and switches the USB and DC outputs on and off.
Rules where you live
A portable power station is not wired into your home, so it is simple to use almost anywhere. Connecting one to your home circuits to power the house is different, and the rules for that vary by country. See our country guides for the rules, incentives and prices where you live.
Strengths and things to check
Strengths
- 3,600 W output with an expandable 3,840 to 11,520 Wh
- AC and solar charging up to 4,200 W
- Over 6,500 cycles (FOSSiBOT's figure)
- UPS switchover under 10 ms
- Wheels and an extendable handle
Worth checking before you buy
- Weight, size, warranty and protection rating are not stated
- The specification table could not be read as text, so ports are not listed in detail
- FOSSiBOT's headline figures assume one F3600 Pro with two FB3840 packs
Change log
We record changes to this page here, so you can see when figures such as the warranty were last updated.
- 11 November 2026
- Page published. Warranty at publication: not stated on FOSSiBOT's product page, so none is shown.
Where this information comes from
We have not tested the F3600 Pro. Every figure above comes from FOSSiBOT's product page for this model, last checked on 11 November 2026. The page's Tech Specs tab did not load as text, so size, weight, ports and warranty are shown as not stated. We do not show prices, because they change often and differ between sellers.
- Manufacturer FOSSiBOT F3600 Pro page
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Common questions about FOSSiBOT F3600 Pro
How big can the FOSSiBOT F3600 Pro get?
With FB3840 expansion batteries FOSSiBOT lists capacities from 3,840 Wh up to 11,520 Wh.
How fast does the F3600 Pro charge?
FOSSiBOT quotes a full charge in 2 hours from 2,200 W of AC power or from 2,000 W of solar, and 1.5 hours with up to 4,200 W of AC and solar combined.
Is the F3600 Pro the same as a home battery?
No. It is a portable power station that you plug devices into. An installed home battery is wired into your electrics by an electrician. See our guide to plug-in and installed home batteries.
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