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, public institutions, food processing plants and telecom base stations, 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%.
Food Processing Plant Solar + Storage Project
200 kWp PV + 261 kWh storage. Rooftop PV supplies the production load first; surplus energy is stored and released at peak times, cutting overall energy costs.
Tongliao Telecom Base Station Storage Project
20 kW PV + 32 kWh storage. PV covers the base station's daily load and surplus power is stored to raise green-power utilisation; the battery backs up critical communications during outages.