The Flexopower Lithium1800 is a high-capacity 1.8kW power station with a 1229Wh LiFePO4 battery, aluminium casing and true UPS.
It is aimed at users who want to power most household or office loads, including TVs, PCs, printers, routers and multiple fridges during load-shedding or off-grid stays.
It fits neatly in a trailer or caravan and then rolls back into the house when you return, offering one solution for both travel and backup power.
Estimated runtimes with National Luna dual fridge/freezers*
*Approximate values in mild conditions, mixed fridge/freezer use, single appliance only. Real-world runtimes will vary with ambient temperature, packing, and settings.
| Appliance | Estimated runtime |
|---|---|
| National Luna 50L Dual fridge/freezer | up to approx 27.5 hours |
| National Luna 60L Dual fridge/freezer | up to approx 24.5 hours |
| National Luna 72L Dual fridge/freezer | up to approx 20.5 hours |
| National Luna 90L Dual fridge/freezer | up to approx 17.5 hours |
Specifications
| Battery service life | Approx 10 years of typical use |
|---|---|
| Battery chemistry | LiFePO4 (Lithium Iron Phosphate), square aluminium case |
| Battery capacity | 1229Wh, 51.2V, 24Ah |
| AC output | 1800W continuous (3600W peak), 230V, 50Hz, pure sine wave |
| DC output |
1 × 12.6V / 10A regulated cigarette lighter 2 × 12.6V / 3A DC5521 barrel plugs 2 × USB-A Fast Charge 5V / 2.4A (18W per port) 2 × USB-A 5V / 2.4A (12W per port) 2 × USB-C PD 100W |
| Charging inputs |
AC 230V, 1800W fast charge (≈60 minutes from flat) Solar PV up to 400W, 13–45V, max 12A (integrated MPPT) |
| UPS | True UPS with 14ms transfer time |
| Display | Full LCD system information display |
| Weight | 22kg |
| Dimensions (L × W × H) | 270 × 300 × 432mm |
| Safety protections |
Short circuit, over-current, over-voltage, low-voltage, overload, over-temperature |
| Included accessories |
AC charger cable Solar cable with grey Anderson SB50 User manual |
| Operating temperature | 0°C to 45°C |
| Warranty | 2 years |
| Certification | CE, FCC, RoHS, PSE |
| Weight | 14 kg |
|---|---|
| Dimensions | 35 × 22 × 27 cm |
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