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The ESS-1800W-4000Wh is a serious home-scale power station engineered for whole-essentials backup and demanding off-grid use. With an 1800W rated AC output, a huge 4019.2Wh LiFePO₄ battery and ultra-fast recharging, it powers your key appliances during blackouts and fuels extended adventures away from the grid.
Key Selling Points
1800W Rated Power to Run Household Essentials
The ESS delivers a robust 1800W AC output through two AC sockets — enough to run refrigerators, microwaves, electric kettles, coffee machines, TVs, space heaters and power tools with ease. Whether it's keeping your kitchen running during an outage or powering a mobile workspace, this station handles the everyday loads that matter.
Massive 4019.2Wh Capacity — About 4kWh of Backup Energy
At the heart of the unit sits a 4019.2Wh lithium battery (12.8V / 314Ah), delivering around four kilowatt-hours of stored energy. That's enough to power a refrigerator for over a day, keep lights and a router running for days, or recharge laptops and phones dozens of times. Serious capacity for serious peace of mind.
LiFePO₄ Battery — Up to 6000 Charge Cycles
Built on premium LiFePO₄ (lithium iron phosphate) cells, the ESS is rated for up to 6000 charge cycles at 0.5C with 90% depth of discharge (at 25°C). This exceptional cycle life far outlasts ordinary lithium-ion batteries, delivering years of dependable service. The stable chemistry also provides superior thermal safety and high-temperature resistance — a power source you can trust in any environment.
Ultra-Fast AC Charging — Up to 1500W
Recharge at impressive speed from any standard wall outlet at up to 1500W through its C14 inlet socket. The wide AC input of 90–280V at 45–65Hz automatically adapts to power standards across North America, Europe, Asia and beyond — charge with confidence almost anywhere in the world, no converter needed.
High-Power Solar Charging — Up to 1200W
Heading off-grid? The built-in PV input accepts up to 1200W of solar charging (18–110V / 15A max). Pair it with high-wattage solar panels to harvest renewable energy and sustain a truly self-sufficient power supply — ideal for solar cabins, RVs, farms and emergency preparedness.
A Complete Output Hub for Every Device
Everything you need, all in one unit:
• 2× AC sockets: 1800W, 230V / 50Hz output
• 4× DC 5521 ports: 12V/10A — high-current DC for routers, monitors and CCTV
• 1× USB-C: PD 20W fast charging
• 1× USB-A: QC 20W fast charging
• 1× USB-A: 5V/3A standard output
Run AC appliances and DC devices simultaneously — one station powers your entire setup.
Robust, Wide-Temperature and Reliable
Measuring 336×239×355mm with a solid 32kg build, the ESS is designed for stationary home backup and heavy-duty off-grid use. It operates reliably across a wide temperature range of -15°C to 55°C, performing steadily through freezing winters and hot summers alike.
Who Is the ESS For?
• Homeowners — whole-essentials backup to keep fridges, lights, routers and appliances running through extended outages
• RV & off-grid dwellers — a powerful mobile energy hub for solar-powered living
• Farm & field operations — dependable power for tools, pumps and equipment
• Emergency preparedness — silent, fume-free power you can count on when the grid fails
Combining high power, generous capacity and fast recharging with a safe, long-life LiFePO₄ battery, the ESS-1800W-4000Wh is the dependable backup and off-grid companion your home and adventures deserve.
Power your world with confidence. Order the ESS-1800W-4000Wh today and keep your home and adventures running, no matter what.
| Rated Power | ESS-1800W-4000Wh |
| Battery type | 12.8V /314Ah |
| Battery Type | 3.2V(LiFePO4) |
| Battery Energy | 4019.2Wh |
| Charging Power | AC 1500W Max |
| AC Input Port | C14 Inlet Socket |
| AC Input Voltage | 90-280V AC |
| AC Input Frequency | 45-65Hz |
| PV Input Power | 1200W Max |
| PV Input Range | 18-110V/15A Max |
| Output Power | AC 1800W |
| AC Output Voltage | 230V 50Hz |
| Number of AC Outlets | 2 |
| DC (5521)x 4 | 12V/10A, |
| USB-C | PD 20W |
| USB-A 1 | QC 20W |
| USB-A 2 | 5V/3A |
| Dimensions | 336 x 239 x 355mm |
| Weight | 32kg |
| Operating Temperature | -15°C~55°C |
| Battery Life | 6000 Times, 0.5C, 90% DOD (25°C) |