SESS 1+0.5 Portable All-in-One ESS | 1kWh LiFePO4 Battery + 500W Inverter

SESS 1+0.5: Compact Portable Energy Storage

Bring battery storage and AC power together in one compact unit. The CSSUN SESS 1+0.5 combines a 1kWh LiFePO4 battery with a 500W pure sine wave inverter for small backup-power and solar applications. A built-in carry handle makes it convenient to reposition where power is needed.

• All-in-one design: LiFePO4 battery and inverter integrated in one enclosure.
• 500W pure sine wave output: 230Vac output for compatible appliances within the rated power limit.
• Solar and AC inputs: PV input up to 300W, with an MPPT range of 11–55V, plus AC charging input.
• Compact footprint: 260 × 151 × 320mm and approximately 15kg.
• Built-in battery protection: BMS functions include overcharge, over-discharge, overcurrent, temperature and short-circuit protection.

Choose the Right SESS Model for Your Application

Start with your appliances’ running power, starting power and required backup time. For this model, keep the connected load within the 500W rated AC output and match the solar array to the specified PV input limits. Actual backup time depends on the load, battery condition and conversion losses.

The brochure above includes series information and single-cell performance curves. Confirm model-specific ports, charging conditions and the final supplied configuration before ordering; cell test curves do not represent complete-system runtime.

Compare all 11 models in the Download tab, where you can download the individual datasheets and the SESS series catalog.

Need help choosing a model? Share your appliance list, daily energy needs, solar-panel specifications and destination market with sales@cssun.net. CSSUN can help you select a suitable battery-and-inverter configuration for your project.