EcoFlow Delta 2 (1024Wh)
The EcoFlow Delta 2 is the best all-around portable solar generator for professional job site use. With 1024Wh of lithium iron phosphate (LiFePO4) capacity and a 1800W pure sine wave inverter (2500W surge), it powers everything from drill chargers and angle grinders to small inverters and lighting rigs. The standout feature is X-Stream fast charging - the unit reaches 80% in just 50 minutes on AC, and accepts up to 1100W of solar input for rapid recharge in direct sunlight.
For solar installers, the Delta 2 strikes the ideal balance between capacity and portability. At 27 lbs, it is heavy enough to be stable on a work surface but light enough for one person to carry up a ladder. The multiple output options - 4 AC outlets, 2 USB-C ports (100W max), 1 USB-A port, and a 12V car socket - mean a crew can charge drills, multimeters, and phones simultaneously.
The LiFePO4 battery chemistry provides 3,000+ cycles to 80% capacity, meaning years of daily job site use without significant degradation. The built-in app connectivity lets users monitor charge status, adjust output settings, and schedule charging windows remotely - useful when the unit is placed on a roof while the crew works below.
- 1024Wh capacity handles most job site tools
- 1800W inverter with 2500W surge for startup loads
- 1100W solar input charges fast in direct sun
- LiFePO4 battery lasts 3,000+ cycles
- App connectivity for remote monitoring
- 27 lbs is heavy for frequent ladder carries
- 100W USB-C max may not fast-charge all laptops
- No wave power outlet for some European tools