EcoFlow Delta 2 review – smart power, minor quirks

The EcoFlow Delta 2 shows portable inverters and batteries have come a long way in a short time.

are all eager to get the attention of South Africans fed up with Eskom’s inability to provide electricity around the clock.

However, you’re going to want to reduce that to 500W to preserve the battery chemistry for as long as possible. At 500W, we found in our testing that the units could always recharge fully in time for the next outage, even at stage-6 load shedding. We also reduced the charging speed of our River 2 and River 2 Max units to 150W or less for the same reason, with no worries about not having maximum power stored for when the lights go again.

In normal operation, though, the Delta 2 is surprisingly quiet, especially if it’s only pulling a small amount of power – the fans only seem to kick in at about 150W power draw. When it’s not outputting any power, the unit is mostly quiet, though the fans kick in occasionally when it’s connected to the mains. Although still relatively quiet, we wouldn’t recommend keeping the Delta 2 in your bedroom as there is a chance it will disrupt your sleep.

We asked EcoFlow for comment on this, and company spokesman Orange Lin said its products are equipped with an “EPS function”. This means a 30ms delay between the mains dropping and inverter switching over to battery power, while a UPS has a delay of less than 20ms . “EPS can meet the needs of most home appliances within the output range of our power stations in the face of load shedding.

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TechCentral /  🏆 8. in ZA

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