Ecoflow Delta 2: The new mobile battery… and not only

Introduction

We’re already the proud owners of a small but effective Delta Mini, so if you’d like to find out more about its performance and what it’s been able to do for us on a day-to-day basis, all this is explained in our article on test and review of Ecoflow’s Delta Mini.

And yes, we know, you’re probably still thinking that you’re hearing a bit too much about Ecoflow these days. And you’re not wrong, but this is a company that’s particularly innovative, and whatever one may say, their products are (in our eyes) good.

During our RoadTrip, we were able to preview the new version of the Delta, simply named Delta 2. So we’ll be able to give you some information and feedback even before it’s released.

• 10W light: 31h
• 120W refrigerator: 7 to 14h
• Telephone: 98 refills
• 60W computer: 16 recharges
• Camera: 60 refills

• Microwave: 0.6h
• Washing machine: 1.8h
• 50-inch TV: 8h
• Drone: 25 refills
• Speaker: 31h

• Hair dryer: 30 min
• Coffee machine: 50 minutes
• Car fridge: 16h-32h
• Projector: 12h
• PS5: 4.5h

The refill

Like all the brand’s products, the Delta 2 can be recharged in a variety of ways.

• By solar panel: a new MPPT algorithm detects the best voltage to send to the battery to achieve 98% efficiency. Depending on the size of the panel, here are the indicative times for recharging the battery.
  • 1 110w panel: 12-24 hours – 4 110W panels: 3-6 hours
  • 1 160w panel: 8-16 hours – 2 160W panels: 4-8 hours
  • 1 220w panel: 6-12 hours – 2 220W panels: 3-6 hours
  • 1 400W panel: 3-6 hours
• From the mains, expect less than 2 hours for a full recharge, 50 minutes for an 80% charge.
• By cigar lighter: approx. 20h.

The load cycle

This is where Ecoflow’s claim is a real step forward compared with other batteries in the range: 3000 battery recharge cycles*, compared with 500 cycles for other batteries.

*As a reminder, a charge cycle is the number of guaranteed recharges where the battery will recharge to 100% of its capacity. Beyond that, it won’t stop working, just lose its recharging capacity.

This little feat is due to the composition of the drums themselves. Ecoflow used LFP technology, the same technology used in Tesla batteries. It comes with a 5-year warranty and numerous BMS protections to protect the battery from overheating, temperature and other minor problems.

The weight

Last but not least, for a nomad battery, it has been lightened by 2 kilos compared to the previous version. This means that it now weighs in at 12 kilos, which is pretty cool when you have to carry it around, I’m sure you’ll agree, especially if you’re a nomad like us.

Application and ecosystem

Of course, this battery fits in perfectly with the Ecoflow ecosystem, and can be controlled via the mobile application, which is brilliant, even if I do have a few quibbles with it. In any case, you can easily integrate Ecoflow into your existing system (such as an Ecoflow Energy Power Kit ) in a very simple way

First of all, there’s little difference in weight between a Delta Mini and a Delta 2. The two handles have been retained, and while this may seem to take up space for nothing, if you need to move the battery around a lot, it’s a real advantage: you can retrieve it easily, carry it with two people, and it’s really great.

On the front, what we like best are the two USBC 100W ports. For those of us who use Macbook Air M1s, this is the type of connector that will save us from having to use the 220V sockets on the back. On our Delta mini, there was only one socket, so we had to fight nicely to get this USB-C port (basically, I let Caro have the socket to avoid any drama). Note that they’ve added a button to activate these sockets on the front panel, and that the wifi button no longer exists compared to the Delta Mini. I’ll come back to this later, but for me it’s the problem with this Delta 2 version.

So I tested a laptop on the USB-C socket, and as usual we have the OUTPUT information, which lets you know more about the energy coming out, and which for me is really great for understanding more about energy and device consumption in your home.

In times of energy sobriety, I believe it’s essential to have a better understanding of the energy we use.

For the rest, it’s pretty much the same as the other products in the range.

Refill

Just so you know, my full recharge test didn’t happen, because we had to send the Delta 2 back the same day. Nevertheless, I was able to plug it into the mains, and found that at 30% capacity, it took just 50 minutes to fully recharge. That day I was connected to a camping terminal.

Otherwise, I set the battery charge to 200W to make sure I don’t drain my camper network, sometimes going up to 300 or 400W depending on the sun. Nevertheless, recharging performance is indeed incredible. Indeed in service areas, you often have the right, for example, to an hour or even 20 minutes of electricity for €3 or €1Connecting your Ecoflow to it allows you to optimize those precious minutes by recharging your motorhome’s cell battery and storing energy in the Ecoflow Delta 2 battery.

We were won over by the Delta Mini, so it’s not impossible that we’ll also be won over by the Delta 2.

like its little sister, it’s incredibly easy to use and set up.

I hope to be able to offer you a more comprehensive review when I receive the FR version, and above all to look into this Bluetooth connectivity issue to see if it’s really a black spot for me.