The EcoFlow Delta 2 is not an emergency power supply, but a battery pack. You can charge it in different ways and once charged it can deliver various electrical voltages.
Aad Munsterman and Rob Coenraads
The capacity of our test model measures 1024 Wh, which means that you can extract approximately 1 KW for 1 hour from various connections with multiple voltages. LFP batteries are used for long life, no maintenance, efficient charging and low weight. The Delta 2 weighs 12 kilos and measures 21 x 40 x 28 cm.
The input can be 230V alternating current, solar panels or a 12V battery, in terms of output there are 4 230V connections and a 12V connection at the rear and 4 USB-A/2.4A connections and 2x USB-C at the front. In the event of a power failure, the voltage output is taken over by the EcoFlow Delta in approximately 30 ms. This unit is therefore not suitable for a NAS or critical PC systems. You can also use it on construction sites, campsites, garages, etc.
There is a display with all the necessary information about charging and purchasing and you can also consult the EcoFlow app on your phone via Bluetooth or WiFi. You can also use this to control settings such as loading speed and limits.
The EcoFlow Delta 2 functions correctly and is of good quality. Unfortunately, we do not receive an alarm message when the battery is almost empty and before everything is switched off; we would like to see this added to the app and the unit. We would also like to see in the manual what the optimal way of charging and discharging is to optimize the life of the battery.
Product: EcoFlow Delta 2 1024Wh
MSRP: €1199 extra battery €799
Pros:
* tension everywhere
* good portability
Negatives:
* base capacity limited
* not suitable for critical computer systems