Short Home Outages
Keeping the fridge, Wi-Fi and phones alive for hours
PECRON · Extra large
PECRON E3800LFP
3.84 kWh of storage, 4.2 kW of continuous AC output, listed at $1,299. That works out to $0.34 per watt-hour and 44.0 watt-hours per pound.
3.84 kWh4.2 kW AC87.3 lbLiFePO43,500 cycles
What this unit is for
LiFePO4 and high inverter output at value pricing — the challenger that competes on chemistry and watts rather than on ecosystem.
Best suited to: Value buyers who care about chemistry and output more than ecosystem. Less suited to: Buyers who need a mature app, dealer support or resale value.
Multi-day backup, off-grid and whole-home loads.
Specifications
8 of 19 fields are published by PECRON for this model. The rest are shown as “—” and are excluded from rankings rather than estimated.
| Capacity | 3.84 kWh |
|---|---|
| AC output (continuous) | 4.2 kW |
| AC surge | — |
| Power lifting / boost | — |
| Battery chemistry | LiFePO4 |
| Rated cycles | 3,500 |
| Weight | 87.3 lb |
| AC recharge to full | — |
| Max solar input | 3 kW |
| AC outlets | — |
| USB-C ports | — |
| USB-A ports | — |
| 12V car port | — |
| UPS switchover | — |
| Max expandable capacity | 26.88 kWh |
| Warranty | 60 months |
| Noise level | — |
| Ingress protection | — |
| Operating temp (low) | — |
| List price | $1,299 |
Where these numbers come from. Every figure on this page is taken from PECRON’s own product listing and is stored with the vendor’s exact wording, reproduced below. We do not estimate missing specs — a field the vendor does not publish is shown as “—” and excluded from rankings. Source: www.pecron.com/products/pecron-e3800lfp-portable-power-station-4200w-3840wh.
Vendor wording for each figure (8)
capacityWh: “3840Wh Large Capacity”acOutputW: “4200W Bidirectional PSW Inverter”chemistry: “LiFePO4”cycleLife: “3500+ cycles to 80%+ capacity”weight: “Around 87.3lb (39.6Kg)”solarInputW: “3000W Solar Charging Max”maxExpandableWh: “Expandable Up to 26,880Wh with 6*EP3800-48V”warrantyMonths: “3+2 Years Warranty!”
Where it ranks
All rankings →Position among all 76 models we track, in each dimension this unit publishes the inputs for.
| Dimension | Rank | Value |
|---|---|---|
| Best value (Wh per dollar) | #6 of 73 | $0.34 |
| Most portable (Wh per pound) | #16 of 74 | 44.0 Wh/lb |
| Most inverter headroom | #50 of 75 | 109 W/100Wh |
| Highest solar input | #6 of 55 | 3 kW |
| Most expandable | #4 of 24 | 26.88 kWh |
| Longest service life | #5 of 65 | 13440 kWh |
| Most output per dollar | #13 of 72 | 3.23 W/$ |
| Best for home backup | #25 of 75 | 65/100 |
| Longest warranty | #51 of 75 | 60 mo |
Who buys this brand, and why
Full PECRON profile →Who it is for
- Value buyers who have learnt to look for LiFePO4
- RV and off-grid users wanting high output cheaply
- Preparedness buyers comparing 240V-capable units
What they will pay extra for
- LiFePO4 and a stated cycle life
- Inverter output per dollar
- Expansion batteries priced fairly
Honest drawbacks
- Brand support and service are less established than the majors
- App and firmware polish is behind EcoFlow and Anker
- Independent long-term durability data is thin
- Frequent model churn makes like-for-like comparison harder
Fits these buying scenarios
RV & Van Life
Living and working from a vehicle, on solar and alternator charging
Off-Grid & DIY Solar
Cabins, sheds, job sites and self-built systems
Elsewhere in the PECRON range
All PECRON models →
Closest rivals by capacity
Other brands’ models nearest in capacity — the units a buyer is most likely to be comparing against this one.
