EcoFlow Delta Pro 3 Long-Term Review - CleanTechnica

The EcoFlow Delta Pro 3 power station was tested extensively over a long period, initially around the reviewer’s home and later in a travel trailer setup. Although the reviewer’s original plan to create an all-electric RV was delayed, the unit proved reliable powering high-demand devices like a photo and video editing rig. In the travel trailer, the reviewer installed the Delta Pro 3 semi-permanently, rerouting 30-amp wiring and bypassing the camper’s 12-volt power converter to improve efficiency. Additional cooling measures, such as a computer fan and vent, helped maintain optimal battery temperatures and prevent heat-related shutdowns. The Delta Pro 3 demonstrated strong performance, handling power draws exceeding its rated output without issues—for example, simultaneously running a microwave, toaster oven, and air conditioning at about 4000 watts. With an added second battery doubling capacity to 8 kWh, the system could power an older air conditioner for around nine hours, enabling comfortable off-grid camping in hot weather