- Measured 3640 W continuous AC output exceeds the 3600 W rating with no thermal throttling
- 2200 W AC input completes a full recharge in 2 hours 10 minutes, with up to 3500 W combined AC+solar charging
- Modular expansion from 3840 Wh to 7680 Wh or 11520 Wh using up to two FB3840 expansion batteries
- EVE LiFePO4 cells paired with 15 output ports (including 100 W USB-C PD and XT60) and built-in transport wheels
- Contradictory manufacturer documentation on rated cycle count and warranty coverage (5-year US page claim vs. 2-year effective warranty)
- 10 ms UPS switchover, near-max 2000 W solar charging speed, acoustic noise, and round-trip efficiency lack independent test measurements in reviewed evaluations
Overview
Sustaining 3640 W of continuous AC output in independent load testing without thermal throttling puts this high-capacity power station slightly ahead of its own 3600 W nameplate rating. Built around a 3840 Wh EVE LiFePO4 battery pack and a high-headroom inverter rated for 7200 W surge loads, the platform scales modularly via two dedicated expansion ports to 7680 Wh with one FB3840 battery or 11520 Wh with two. That combination targets heavy-duty off-grid appliances, mobile workshops, and home backup roles where both sustained wattage and expandable runtime matter.
Charging flexibility and physical utility are central to its day-to-day ergonomics. Mains charging at 2200 W refills the main pack in 2 hours 10 minutes, while selectable 100-120V AC input limits of 300 W, 600 W, 900 W, 1200 W, and 1500 W let users adapt draw to weaker circuits. Solar arrays connect at up to 2000 W—or 3500 W when paired with AC power—while built-in transport wheels and a detachable magnetic flashlight simplify moving and operating a large-format unit. Across the front and side I/O, 15 output ports cover 3x 230V Schuko AC outlets on the EU variant, one 100 W USB-C PD port, three 20 W USB-C PD ports, two 18 W Quick Charge 3.0 USB-A ports, two 12V/3A DC5521 jacks, a 12V/10A car socket, and a 12V/25A XT60 terminal.
Battery management is overseen by an integrated BMS alongside Bluetooth and Wi-Fi app monitoring, and the unit specifies a 10 ms UPS switchover time for connected electronics. Practical ownership caveats center on documentation rather than load behavior: manufacturer materials contradict themselves on rated cycle life—listed at 6500+ cycles—and warranty duration, with a 5-year claim on the US product page conflicting with a 2-year effective warranty noted in third-party evaluation. In addition, independent lab figures for the 10 ms UPS transition, near-maximum solar charging, fan noise in decibels, and round-trip efficiency remain unverified in the reviewed tests.
Technical Specifications
| Brand | FOSSIBOT |
| Model | F3600 Pro |
| Battery Capacity | 3840 Wh |
| Expandable Capacity | Up to 11520 Wh (1x FB3840: 7680 Wh; 2x FB3840: 11520 Wh) |
| Battery Chemistry | EVE LiFePO4 (LFP) |
| Rated Cycle Life | 6500+ cycles |
| Continuous AC Output | 3600 W (3640 W measured sustained) |
| Surge AC Output | 7200 W |
| UPS Switchover Time | 10 ms (rated) |
| Total Output Ports | 15 |
| AC Outlets | 3x Schuko AC sockets (230V, EU variant) |
| USB C Ports | 1x 100 W PD, 3x 20 W PD |
| USB A Ports | 2x 18 W (Quick Charge 3.0) |
| DC Outputs | 2x DC5521 (12V/3A), 1x Car Socket (12V/10A), 1x XT60 (12V/25A) |
| Input Ports | AC port, Solar port, Car connection, 2x expansion battery ports |
| Max AC Charging | 2200 W (2h 10m measured full recharge) |
| Adjustable AC Input (100 120V) | 300 W / 600 W / 900 W / 1200 W / 1500 W |
| Max Solar Input | 2000 W |
| Max Combined AC + Solar Input | 3500 W |
| Connectivity | Bluetooth, Wi-Fi (app monitoring) |
| Integrated Features | Built-in transport wheels, detachable magnetic flashlight, BMS |
Primary Sources & Audited Citations
Recommended Alternatives in Power Stations & UPS
At a Glance
How reliable is the FOSSIBOT F3600 Pro according to Mizex audits?
Buy the FOSSiBOT F3600 Pro if you want verified 3640 W continuous AC output, fast 2200 W charging, and modular expansion up to 11520 Wh, provided you confirm regional warranty terms in writing first.
What are the known quirks or drawbacks of the FOSSIBOT F3600 Pro?
Our reliability audit identified the following documented caveats:
- Contradictory manufacturer documentation on rated cycle count and warranty coverage (5-year US page claim vs. 2-year effective warranty)
- 10 ms UPS switchover, near-max 2000 W solar charging speed, acoustic noise, and round-trip efficiency lack independent test measurements in reviewed evaluations
What are the key engineering highlights of the FOSSIBOT F3600 Pro?
The top strengths recorded in our evaluation include:
- Measured 3640 W continuous AC output exceeds the 3600 W rating with no thermal throttling
- 2200 W AC input completes a full recharge in 2 hours 10 minutes, with up to 3500 W combined AC+solar charging
- Modular expansion from 3840 Wh to 7680 Wh or 11520 Wh using up to two FB3840 expansion batteries
- EVE LiFePO4 cells paired with 15 output ports (including 100 W USB-C PD and XT60) and built-in transport wheels