A while ago I tested the fabulous River Pro portable power station from EcoFlow. I felt like I could power just about anything with it and it would just come back for more.
But it’s not the biggest powerhouse in EcoFlow’s impressive range. Not by a certain margin. Because for the last few weeks I have also been testing one of their even heavier Delta devices, and having lived with a mid-range Delta Max I can now power just about anything and it will absolutely come back for more.
This 22 kg Leviathan has such a capacity that you could literally run your house. I have a fairly reliable power supply for my home, but I also have an RV full of gadgets and have taken the Delta Max with me on a narrowboat vacation. And he hasn’t sweat all week.
Let me give you an idea of how powerful this thing is; I plugged in a heated vivarium that my wife’s pet lizard travels in, which uses a 100W light bulb for warmth. With that and our 40w TV running, the Delta Max’s clear display suggested we could run everything constantly for two days.
It’s amazing what you could put out of this awesome device. It houses an inverter that can power multiple devices up to 2400W; So fridges, microwaves, vacuum cleaners, toasters and even a kettle could work, thanks to its 4kW surge capability.
Think about it, you can charge an e-bike multiple times, run a camping fridge for a long weekend, keep a laptop and its monitors powered up for days, or even just use it to run essential home appliances. your home if you are prone to power cuts.
There is also a range of charging options. Using a household power outlet, you can recharge it from empty in a few hours thanks to its fast charging function, which injects 2 kW into its lithium batteries. There is also a slower charging feature for longer term use, but the fast charging is really impressive.
It will also charge at around 100 watts from a car cigarette lighter, or you can buy a solar panel from EcoFlow to sprinkle up to 160W of free electricity. I tested one of these smart solar packs, which folds out from a fabric cover into a pretty clunky four-panel array that’s hard to stall, but managed to get a reliable 120 watts, ish, on a reasonably pleasant day in March.
The other smart thing is that while it’s charged, all of its functions can be used; whether it’s the suite of 12v USB sockets, the 12 cigarette lighter socket or the group of four – yes, four three-prong AC sockets.
And if 2 kW of power is not enough for you, you can increase the capacity of the Delta Max by connecting additional units. There is also a larger version, which is so heavy it comes with wheels and a sliding handle, called the Delta Pro, which packs 3.6kW, again expandable up to 7kW.
Disadvantages? A little ago. First of all, it’s so heavy. Powering a picnic might be out of the question unless you can transport 22kg of powerhouse with some sort of vehicle or at least a cart.
And while it’s linked to a decent app via Wi-Fi or Bluetooth, and that app is great for monitoring power input and output, it often disconnects over time and “loses” power. unity. So you have to redo the movement to link it again.
Inverters also have inefficiency built in, so even if you were to leave a 1w alarm clock running overnight, the inverter itself takes an undeclared toll on the batteries, so you’ll wake up to find that about 20% of your power evaporated.
The other big downside is, as you might expect, the price. Buying the 2kw version directly from EcoFlow would cost you £2,000. Yes that is correct. And the solar panel I tested, as neat and useful as it is, costs £379.
There are alternatives. There’s a Delta Mini version with 800kW which costs £1,000, or the standard Delta is £1,299.
But let’s put things in perspective. A decent petrol generator capable of pumping out 2kW for a few days will cost around £1000 and more. And I don’t need to tell you the cost of gas these days. Whereas if you can find enough sunshine, you could possibly keep the Delta range with a fridge, lights and a range of chargers at your campsite for weeks or even months.
Pair three together, add a bunch of solar panels, pray it doesn’t darken too often, and you have a true off-grid solution for both somewhere without having to incur the expense of powering your rural shelter.
So yes, big power comes at a big price, but the versatility of the Delta range, not to mention the ease of use and the real smart thinking behind it, makes it all seem worth the investment.
Not everyone will find a use for these large powerhouses, and that’s fine. But if you’re like me and love the great outdoors, but would miss your gadgets – or, for that matter, work with power tools away from a mains source, then this is going to be invaluable.
So it’s a fabulous solution to some serious first world problems.