ZT-PESS-4k | ZT-PESS-4k Pro

Spark Portable Power Station

4kWh | 3kW | UPS ≤20ms (Pro)

The ZTTEK Spark A-4k delivers 4019 Wh of LFP energy with 3kW continuous AC output (4.5kW peak) — enough to power a household through extended outages or support high-draw professional applications. The Pro model adds UPS ≤20ms transfer and 3kW solar MPPT input for near-self-sufficient off-grid operation. Both models include an integrated 15W LED emergency light rated for 200+ hours.

4kWh LFP Battery, 3,000-Cycle Lifespan

High-capacity LFP for extended runtime and long service life.
- Rated capacity: 4019 Wh; cell: 12.8 V / 314 Ah
- Cycle life: ≥3,000 cycles to 80% capacity (80% DoD)
- Operating temperature: -20°C to 55°C (charge/discharge)
- 8-layer BMS: over-current, short-circuit, over-temp, under-voltage, over-voltage, reverse current, cell balancing, lightning protection

3kW AC Output, 4.5kW Peak

High-power output to run heavy-load appliances and tools.
- Rated AC: 3kW; peak: 4.5kW — handles motor startup surges
- AC outlets: 3 × 220V (A-4k Pro) / 4 × 220V (A-4k)
- USB-C PD: 1 × 140W
- USB-A: 2 × 5V/2A (10W each)
- Car outlet: 12.8V/20A (optional 40A); LCD display

UPS Function with ≤20ms Transfer (Pro version)

The A-4k Pro provides seamless backup switching for sensitive equipment and home appliances.
- UPS transfer time: ≤20 ms (ZT-PESS-4k Pro only)
- Suitable for NAS drives, medical devices, smart home hubs, and security systems