4000W. 3456Wh. 11 Ports. <15ms UPS. Expandable to 21.6kWh. Power That Never Quits.

The NEJoye X4000 delivers a true 4000W continuous output (6000W peak) from a 3456Wh LiFePO4 battery, with pure sine wave AC, sub-15ms UPS backup, and five charging inputs including solar and EV charging piles. 11 devices simultaneously. Expandable to 21.6kWh with 6 units. It’s the 4000W portable power station built to keep your home, business, and adventures running — no matter where the grid ends.

Key Specifications

• Battery Capacity: 3456Wh (expandable to 21.6kWh with 6 units)
• Battery Type: LiFePO4 (lithium iron phosphate)
• Rated AC Output: 4000W (220–240V) / 3600W (100–120V), pure sine wave
• Peak AC Output: 6000W
• AC Outlets: 4× universal (2×2 grid)
• USB-C: 2× up to 100W PD
• USB-A: 4× (2× QC up to 18W + 2× 5V/2.4A)
• Car Outlet: 1× 12V, up to 120W
• AC Input: Up to 2200W
• Solar Input: Up to 2000W (MPPT 12–150V, 40A)
• EV Pile Input: Up to 2000W
• Combined Input: Up to 4000W (AC + solar or EV + solar)
• UPS Switchover: <15ms
• Operating Temp: -20°C to +40°C
• Safety: 8-layer BMS protection
• Weight: Approx. 45kg
• Dimensions: Approx. 540 × 490 × 300mm
• Colors: Gray / Black / Silver
• Plug Types: US / UK / FR / EU / Other

True 4000W Output — 6000W Peak, Pure Sine Wave

Genuine 4000W rated output (3600W on 100–120V grids) through four universal AC outlets, with a 6000W peak that handles surge-heavy appliances with ease. Refrigerators, air conditioners, water heaters, power tools, coffee machines, and industrial equipment — the X4000 starts them and keeps them running. True 220V pure sine wave output: safe for laptops, medical devices, audio equipment, and CPAP machines.

3456Wh LiFePO4 — Built for Years of Service

LiFePO4 chemistry trusted in electric vehicles for thermal stability and safety. Doesn’t catch fire or explode under stress. Thousands of charge cycles before degradation. Operates reliably from -20°C to +40°C — freezing winter outages, scorching summer job sites, and everything in between.

How Long Will It Last?

• 400W refrigerator — ~7 hours
• 100W LED lighting — ~29 hours
• Laptop (65W) — 40+ full charges
• Smartphone — 200+ full charges
• Air conditioner (1000W) — ~2.9 hours
• 4000W load — ~45 minutes

11 Devices at Once — 5 Types of Interfaces

4× AC outlets (4000W rated / 6000W peak), 2× USB-C PD 100W, 2× USB-A QC 18W, 2× USB-A 5V/2.4A, 1× 12V car outlet (120W). Espresso machine, air fryer, projector, cameras, phones, tablets, drones — plug them all in at once.

Five Ways to Charge — Including EV Pile

• 🔌 AC mains (2200W) — fast wall charging
• ☀️ Solar (2000W, MPPT 12–150V) — true solar generator
• ⚡ EV charging pile (2000W) — top up at public EV stations on the road
• 🔌 AC + solar combined — up to 4000W total
• ⚡ EV pile + solar combined — up to 4000W total

8-Layer BMS Safety Protection

High-temperature, low-temperature, over-discharge, overload, short-circuit, overvoltage, overcurrent, and battery protection — every charge and discharge cycle monitored continuously.

<15ms UPS — Zero Downtime

Switches from grid to battery in under 15 milliseconds — fast enough to keep computers, servers, and network equipment running without a single interruption. No lost files, no corrupted data. Complete backup solution for home offices, clinics, and enterprise workstations.

Touchscreen + ECO Mode + Silent Mode

Touchscreen display for battery status, input/output wattage, and mode settings. ECO mode extends standby time and minimizes battery wear. Silent mode delivers no-noise, no-exhaust operation — perfect for indoor use and quiet campsites.

Expandable to 21.6kWh

Connect multiple units or expansion battery packs via the dedicated parallel interface. Scale from 3456Wh to 21.6kWh with six units — enough to back up a small business or power an off-grid homestead for days.

Built to Move — 45kg, Telescoping Handle, Large Wheels

Two heavy-duty handles with textured orange grips for lifting. Large rear wheels and telescopic handle for rolling like premium luggage. 540×490×300mm footprint fits in a truck bed, garage corner, or RV storage bay.

Built for Every Scenario

• Home backup — lights, fridge, and CPAP through outages
• RV and mobile living — power RV appliances on the road
• Mobile business — food trucks, coffee carts, and market stalls
• Outdoor work — surveying, maintenance, emergency rescue, security
• Enterprise backup — UPS protection so employees keep working
• Off-grid areas — islands, fish farms, yurts, remote zones
• Camping — solar-recharged power for tents, cookers, projectors