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- Verified Buyer
I tried to etaker f1000 prior and was not impressed simply because I could get it to charge my ecoflow delta 2 at anything more than ~200 watts. I contacted etaker customer support and got an answer right away that it was designed to give 1000 watts strictly to etaker power banks. Due to the design of my ecoflow, the device itself was limiting the power input. I was told about the f2000 and decided to upgrade and try it out.Now ecoflow makes their own alternator charger which charges at 800 watts. Super cool and designed to work with their larger power banks like the delta pro or delta 2. I have a smaller river max which I still use for outages for a fridge and also in the car as a power source for a 12v fridge. That will not charge with ecoflow’s alternator charger. I suppose I could use the delta 2 plugged into the alternator charger and then charge the river max from the delta 2…but sounds complicated and ties me into purely the ecoflow line of batteries.Here is where the f2000 shines. In the future, I’d like to purchase a 100ah LiFePo4 battery to use as an add on to my ecoflows (or whatever future solar generator brand I choose). I hate being tied into proprietary brand solutions because it limits what I can do and it’s usually expensive. The f2000 allows me to use the app to choose if I’m charging a power station, a standalone battery, or running a 12v appliance directly. I can choose charge rates and voltages to match what I’m trying to charge. It took me a minute to find it but the app you’ll need to download is called smart life. Once your f2000 has either 12v or solar input, you can turn it on and pair it to the app. I was able to select 24v output for my smaller river max or 48v for my delta 2.I used some high quality jumper cable clamps to bolt the included 12v cables onto. I have 2 cars I can use this system with, I don’t want a permanently mounted solution limiting me to only one car. The jumper cable clamps worked perfectly for that.I have a 500 watt, 36v solar setup I use to charge my power stations. I made a 10 gauge eyelet to xt60 female connector so I could attach my solar cables to the solar input on the f2000 easily without having to use a ton of adapters. I already had an xt60 end on my solar setup to go directly into my power stations so it made the most sense.I used the included eyelet to mc4 cables to attach to the DC output on the f2000 and then used an mc4 to xt60i adapter to plug into my Ecoflow delta 2.The app is fairly easy to use. You have to apply whatever parameters you choose and then hit the “run” switch on the app to apply changes. If you try and change voltages or any setting while charging, the app won’t let you. You have to turn off the “run” switch, make your changes, then turn it on again by selecting the “run” switch.I started by using just 12v input from my car/alternator. My ecoflow delta 2 maxed out at 500 watts of input. I then attached my solar setup and still maxed out at 500 watts. The wattage being pulled from my alternator dropped as it was replaced by the solar input. But it always maxed out at 500 watts.I use my delta 2 and the expansion battery to power a transfer switch on my home during outages. It only runs 4 critical circuits and gets us by just fine with fans, fridges, WiFi, tv, etc. If I’m careful, I can use the 2kwh worth of batteries on the delta 2 and expansion battery to last us 7-8 hours. But in the summer with fridges running more frequently, more fans needed, etc., that becomes 4-5 hours. Our last outage was 26 hours. The delta 2 is wonderful because it’s dead silent. We can sleep at night without a huge generator making a ton of noise. We can also open windows and use window fans to cool things off without a worry of drawing in carbon monoxide from the gas generator in the back yard. But the large gas generator won’t recharge my ecoflows because they aren’t inverter generators and the ecoflows require a pure sine wave and cleaner power from an inverter generator.That’s where the f2000 comes in clutch. Even though I can only charge at 500 watts, I can use the gas generator as needed for larger appliances like the microwave or to power the transfer switch for a couple hours while the solar and f2000 charge the ecoflows back up from the cars and solar as needed.I believe in redundancy and this allows me a convenient way to recharge my power stations (no matter the brand) fairly quickly whether or not I have solar. If it’s raining or like our last outage it’s smoky from fires, my solar input is limited. Now I’m really skunked trying to recharge the ecoflows since the generator can’t do it. I could run the generator for days on end, no problem. But not having to worry about storing as much gas and having the silence the ecoflows afford at night is well worth the price of the f2000 to me. If I keep my cars at half a tank (which we always do anyway), I can recharge the ecoflows dozens of times lasting me weeks before I need to really worry about finding gas. And that’s not even touching stored gas for the generator.I can understand why some people would want to hardwire the f2000, but for me the clamps made the most sense. Sometimes we switch cars depending on needs so having the f2000 live at home with clamps allowing us to use the f2000 with whichever car we have at home at the time for power was the most practical choice.Overall, the build of the unit is solid. The all metal construction feels heavy but not at all in a bad way. It dissipates heat well and nothing got even remotely warm due to the all metal construction and large gauge cables included.My only minor issue was with the included wiring. The solar input mc4 cables were red for positive and black for negative. The DC output cables to connect to your power station or battery were labeled “DC positive” and “DC negative” but were both black. Now you should be paying attention and know which one is labeled as positive and negative. One you attach them, as long as you do it correctly the first time it shouldn’t matter anyway what color the cables are if you leave them attached. But I can see trying to do this in the dark or during an outage and mixing something up. The color coded cables just removes that small amount of doubt and makes it that much harder to mess up the wiring if you’re in a hurry. Other than that, the quality of the cables was top notch and they even included a fused connection for the positive terminal. The wires are malleable and not super stiff. Nothing overheated when I used it. Lastly, the f1000 has a button that allows you to change the output from 300, 400 and 500 watts directly on the unit itself. I like that because if the app is down or your phone dies, you can change the output to your power station directly from the unit itself. The f2000 lacks this button and the only way to change the output is via the app. I consider this a slight con, however the ability to change voltages, amperage’s, back charge the car battery with the power station, etc. are all far more features that can be fine tuned way more than the f1000. If etaker could have combined both worlds and put a button similar to the f1000 on the f2000 as a backup or quick select option, I would have loved to see that. None of these cons were enough to make me rate this a 4 instead of 5 stars. The important things like build quality and the included cables were top notch. The ecoflow charging at only 500 watts isn’t an issue with the f2000, it’s a limitation from the ecoflow itself. Input from the xt60i plug is capped at 500 watts. Doesn’t matter if it’s from solar or a charger like this. Some of the large delta pro and other larger units allow dual xt60 inputs for faster charging or higher wattage input from the xt60i port. If your unit allows higher wattage charging, you’ll be able to pull it from the f2000. Just understand the limits of your power stations, it’s no fault of the f2000.Overall I’m very happy with my purchase. I like that I can use the f2000 with whatever car I choose and whatever power stations I choose in the future, plus standalone 12v batteries or to charge a dead car battery. The features are great and the app is easy to use and pair with the f2000. I bought this thing with my own hard earned money and took a chance on a new product with zero reviews on Amazon.
