SU-ESS Portable Inverter Energy Storage Unit
A portable energy storage product built for basic home backup power, small shops, outdoor work and temporary power supply. The unit integrates 314 Ah LiFePO4 cells, a bidirectional inverter and an intelligent BMS, delivers a stable 230 V pure sine wave output, supports both mains and PV charging, and has a UPS switchover time of ≤20 ms.
- Integrated bidirectional inverter + intelligent BMS with a single 314 Ah LiFePO4 cell
- 230 V pure sine wave output, AC socket + USB port
- Dual fast charging from mains / PV, full charge in about 2 hours
- Multiple protections for under-voltage/over-voltage, short circuit and over-temperature; operating noise <40 dB
Product Specifications
| Specification | SU-ESS-500W | SU-ESS-1000W |
|---|---|---|
| Rated output power | 500 W | 1,000 W |
| Rated energy | 1,004.8 Wh (approx. 1 kWh) | 2,009.6 Wh (approx. 2 kWh) |
| Battery type | LiFePO4 (LFP) | |
| Cell specification | 3.2 V / 314 Ah × 1 | 3.2 V / 314 Ah × 2 |
| Battery rated voltage | 3.2 V | 6.4 V |
| Battery voltage range | 2.9 ~ 3.65 V | 5.8 ~ 7.3 V |
| Maximum charging current | 140 A | 160 A |
| Output waveform | Pure sine wave | |
| Rated output voltage | 230 Vac ±5 V | |
| Rated output frequency | 50 Hz ±0.5% | |
| AC input voltage range | 90 ~ 280 Vac ±5 V | 90 ~ 270 Vac ±5 V |
| Input frequency range | 45 ~ 65 Hz | |
| Maximum mains charging power | 500 W | 1,000 W |
| Maximum PV MPPT power | 300 W | 500 W |
| PV input voltage range | 10 ~ 55 Vdc | 12 ~ 55 Vdc |
| UPS switchover time | ≤20 ms | |
| Maximum inverter efficiency | 88% | 90% |
| Total harmonic distortion (THD) | <3% (linear) / <5% (non-linear) | |
| Output ports | Universal socket × 1, USB × 1 | Universal socket × 2, USB × 1 |
| USB output | 5 V / 1 A (5 W max) | |
| Display | 4-segment SOC indicator + 2 status indicators | |
| Protection | Under-voltage/over-voltage, short-circuit and over-temperature protection | |
| Operating temperature | -10°C ~ 50°C | |
| Storage temperature | -15°C ~ 60°C | |
| Humidity | 20% ~ 95% RH, non-condensing | |
| Altitude | ≤3,000 m (>3,000 m, 1% derating per 100 m) | |
| Noise | <40 dB (at 1 m) | |
| Product dimensions (W×D×H) | 210 × 156 × 356 mm | 240 × 225 × 355 mm |
| Net weight / Gross weight | 11 kg / 12 kg | 18.6 kg / 22 kg |
SU-ESS Portable Inverter Energy Storage Unit enquiry
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Where it fits
SU-ESS Portable Inverter Energy Storage Unit suits the following power scenarios.
Home Backup Power
Automatic switchover in ≤20 ms keeps lighting, routers and refrigerators running.
Small Shop Backup
POS, surveillance and lighting stay uninterrupted, avoiding lost business from sudden outages.
Outdoor Work & Camping
Portable and ready to use: 230 V pure sine wave power for outdoor jobs, camping and market stalls.
Temporary Power Supply
For sites without a fixed grid, with dual mains and PV charging and about 2 hours to full charge.
Related cases
Covering factories, villas, hotels and public institutions, with real project results proving the value of our products.
HONGMLD factory self-consumption
A 52 kW PV + 64 kWh storage system covering production and office loads. It generates 216 kWh per day on average and cuts electricity costs by about 72%, directly reducing operating expenses.
Villa PV + storage upgrade
Existing 20 kW PV plus 32 kWh of new storage. Surplus PV is stored to cover loads from the evening until 8 a.m. the next day, combining self-consumption with backup power during outages.
PV + storage integration at Home Inn, Yuncheng
31 kW PV + 32 kWh battery storage. Daytime solar is stored to secure air-conditioning loads during the night check-in peak, shaving peak demand and reducing the hotel's energy bill.
PV-storage-charging project for a Party school
80 kW PV + 64 kWh storage with a PV carport and charging piles. It supplies about 94,316 kWh of green electricity per year, a green coverage rate of roughly 63%.