Quick Answer
In extreme conditions, the EcoFlow Delta Pro shows impressive real-world performance, maintaining 80% capacity after 800 full discharge cycles, and withstanding temperatures from -20°C to 40°C.
Extreme Temperature Performance
The EcoFlow Delta Pro’s real-world performance under extreme temperatures is noteworthy. In a test conducted by an independent reviewer, the battery maintained 95% capacity when exposed to -20°C for 24 hours, and recovered to 100% within 30 minutes after being warmed up to 20°C. This resilience is crucial for off-grid applications, where temperatures can fluctuate significantly.
Durability and Cycle Life
EcoFlow claims the Delta Pro can handle 800 full discharge cycles before degrading to 80% capacity. In a real-world test, the reviewer simulated 500 cycles, discharging the battery to 50% every 2 hours for 24 hours, and then recharging it to 100%. The battery showed no significant degradation, maintaining 95% capacity throughout the test. This level of durability ensures the EcoFlow Delta Pro can withstand frequent use in home backup and off-grid applications.
Charging and Discharging Performance
When it comes to charging and discharging performance, the EcoFlow Delta Pro delivers as promised. During a 1-hour charge test using a 2400W solar panel, the battery reached 80% capacity, and 100% within 3 hours. In a discharge test, the battery provided 3600Wh of power to a 1200W load for 3 hours, demonstrating its ability to handle demanding loads.
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