PECRON E3800LFP
#2 in Home backupFull review
A big, expandable home-backup station for buyers who want a lot of power and solar input per dollar. It is too heavy to treat as truly portable.
Amazon $1,299 Pecron $1,299$1,299
The PECRON E3800LFP is the better portable power station overall, rated 4.2 to 4.0. The PECRON E3800LFP leads on AC output, solar input and charging speed. The FOSSiBOT F3600 Pro costs $160 less ($1,139 vs $1,299).
FOSSiBOT F3600 Pro
#6 in Home backupFull review
A large home-backup station for buyers who want lots of capacity and solar input at a low price per watt-hour, and don’t need to move it often.
Amazon $1,139 FOSSiBOT $1,219$1,139
Prices were last checked October 20, 2026 and are subject to change; the price and availability shown by the retailer at the time of purchase apply.
Which should you buy?
- Choose the PECRON E3800LFP for AC output (4,200 W continuous AC vs 3,600 W continuous AC), solar input (3,150 W max solar input vs 2,000 W max solar input) and charging speed (0-100% on AC in 2 h 30 min vs 0-100% on AC in 3 h).
Scores side by side
Each factor is scored 0-100 against the same fixed reference points for every home backup portable power station; a clear win is highlighted. How we rank explains each one.
| Factor weight | PECRON E3800LFP | FOSSiBOT F3600 Pro |
|---|---|---|
| Overall rating | 4.2/5 | 4.0/5 |
| Value 25% | 94 $0.34 per rated Wh | 100 $0.30 per rated Wh |
| Tested capacity 15% | 64 84% of rated capacity delivered (1 test) | 50 not yet independently tested (neutral score used) |
| Battery life 15% | 96 LiFePO4, 3,500 cycles, 5-year warranty | 100 LiFePO4, 6,500 cycles, 5-year warranty |
| AC output 15% | 51 4,200 W continuous AC | 37 3,600 W continuous AC |
| Charging speed 10% | 47 0-100% on AC in 2 h 30 min | 32 0-100% on AC in 3 h |
| Portability 10% | 94 97 Wh per kg (87.3 lb (39.6 kg)) | 84 91 Wh per kg (92.6 lb (42 kg)) |
| Solar input 5% | 79 3,150 W max solar input | 44 2,000 W max solar input |
| Features 5% | 100 UPS (20 ms), expandable, 100 W USB-C, app | 100 UPS (10 ms), expandable, 100 W USB-C, app |
Independent capacity tests
PECRON E3800LFP
| Tested by | Usable AC energy | Of rated | Conditions |
|---|---|---|---|
| The Solar Lab | - | 84% | Load and method not stated. Measured idle draw about 21W and AC recharge of 2 h 27 min on 15A, about 1.5 h on 30A. |
FOSSiBOT F3600 Pro
No independent test published yet.
Specifications
| PECRON E3800LFP | FOSSiBOT F3600 Pro | |
|---|---|---|
| Battery | ||
| Rated capacity | 3,840 Wh | 3,840 Wh |
| Tested usable capacity | 3,226 Wh (84%) | - |
| Chemistry | LiFePO4 | LiFePO4 |
| Cycle life | 3,500 to 80% | 6,500 to 80% per product description and Amazon; US spec table says to 50% |
| Expandable | Yes, up to 26,880 Wh | Yes, up to 11,520 Wh |
| Output | ||
| AC output | 4,200 W | 3,600 W (7,200 W surge) |
| AC outlets | 5 total | 5 total |
| 120V 20A outlets (NEMA 5-20R) | 4 | 4 |
| RV 30A outlet (TT-30R) | 1 | 1 |
| AC waveform | Pure sine wave | Pure sine wave |
| USB-C ports | 2 (up to 100 W each) | 4 (up to 100 W each) |
| USB-A ports | 4 | 2 |
| 12 V car outlet | Yes | Yes |
| DC5521 ports | 1 | 2 |
| UPS / pass-through | Yes (20 ms switchover) | Yes (10 ms switchover) |
| Charging | ||
| AC charging | 1,800 W | 1,500 W |
| Full AC charge time | 2 h 30 min (Manufacturer: 2.5 hours on a 15A outlet; 1.4 hours at 3200W with the 30A cable) | 3 h (Manufacturer: about 3 hours on AC; 1 h 50 min with AC + solar (3500W)) |
| Max solar input | 3,150 W | 2,000 W |
| Solar input voltage | 2 x 1500W XT60 (32-150V, 20A) + 150W DC5521 | 12-160V, 20A |
| Car charging | 150 W | 120 W |
| Build | ||
| Weight | 87.3 lb (39.6 kg) | 92.6 lb (42 kg) |
| Dimensions | 17.5 x 12.1 x 14.7 in | 24.0 x 12.6 x 18.7 in |
| App | PECRON app (Wi-Fi/Bluetooth) | FOSSiBOT app |
| Warranty | 5 years | 5 years |