forum thread Posted by Ttynot530 • Feb 1, 2025
Feb 1, 2025 7:06 AM
Item 1 of 2
Item 1 of 2
forum thread Posted by Ttynot530 • Feb 1, 2025
Feb 1, 2025 7:06 AM
Costco EcoFlow DELTA 3 Premium 1500 Portable Power Station - $634.99
$635
Costco Wholesale
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I paired a Delta 3 Plus with a 2kWh delta 2 max smart battery, which came in a two pack from ecoflow's costco next page for ~$750 each, for a total of 3kWh at ~$1400. There are better deals on a per kWh basis, but it looks like only the delta 3 plus is officially capable of UPS, and I wanted that functionality.
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Delta 3 1500 has more capacity which is nice. The rest of the features is more like the Delta 2 than Delta 3 though. So it would be nice to see this closer to $530 to be comparable on a $/wh basis.
unless you live in one of the five states that does not have sales tax, you will have to pay sales tax on this costco deal, so it's starting to approach $700. not worth it. yes the battery capacity is 50% more, but it is gimped in other ways. only one solar input, which is a big deal, since the delta 3 plus has two xt60i solar inputs, and these pv inputs are not only useful for those with solar panels, but also useful for using cheap non-ecoflow external batteries to extend the run time on the power station.
you can simply take an o ring to xt60i cable (a handful of bucks) and hook it up to an external battery (up to 60 volts: i.e. 12v, 24v, 36v, 48v battery) and feed it to the solar input of the delta 3 to charge it back up. slower with 12v batteries, but up to 500w with a 48v battery. with two solar inputs on the delta 3 plus, you can feed both solar inputs off of one battery with two cables or a y-splitter cable, or you can use two external batteries and feed each solar input.
so, the delta 3 plus, with dual solar dc inputs, makes it easy to use an external battery (of your brand choice) to add capacity to the power station. you can more than double the capacity from 1024 wh to 2.3 kwh with a cheap 12v 100ah lifepo4 battery that costs $110-125. you can take a 48v 100ah server rack battery (5.1 kwh) and add 5 times the capacity for $800+ dollars.
the costco delta 3 premium does have 1 solar input, so you can feed it with an external battery, but then the port is used up and not available for a solar panel.
with the delta 3 plus and its two solar inputs, you can have solar panel(s) plugged into one pv input, and charge with an external battery at the same time with the other pv port.
bottom line, is it is much nice having two solar inputs with the delta 3 plus.
there are some other differences as well, if i am not mistaken. the delta 3 plus has dual 140 watt usb-c fast charging ports, while the delta 3 premium is limited to 100w usb-c ports. not a big deal for some.
the delta pro 3 and delta pro ultra are essentially the same price now as they were back towards the end of november, just before black friday. no price drop.
you can simply take an o ring to xt60i cable (a handful of bucks) and hook it up to an external battery (up to 60 volts: i.e. 12v, 24v, 36v, 48v battery) and feed it to the solar input of the delta 3 to charge it back up. slower with 12v batteries, but up to 500w with a 48v battery. with two solar inputs on the delta 3 plus, you can feed both solar inputs off of one battery with two cables or a y-splitter cable, or you can use two external batteries and feed each solar input.
so, the delta 3 plus, with dual solar dc inputs, makes it easy to use an external battery (of your brand choice) to add capacity to the power station. you can more than double the capacity from 1024 wh to 2.3 kwh with a cheap 12v 100ah lifepo4 battery that costs $110-125. you can take a 48v 100ah server rack battery (5.1 kwh) and add 5 times the capacity for $800+ dollars.
the costco delta 3 premium does have 1 solar input, so you can feed it with an external battery, but then the port is used up and not available for a solar panel.
with the delta 3 plus and its two solar inputs, you can have solar panel(s) plugged into one pv input, and charge with an external battery at the same time with the other pv port.
bottom line, is it is much nice having two solar inputs with the delta 3 plus.
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