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DianaND33 11.9K Views
Feb 20, 2025 4:56 AM

3x Ecoflow Delta Pro Ultra Expansion Battery - 18,432 Watt Hours - $5949.15

$5,949

$9,897

39% off
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Bundle of 3 EcoFlow Dekta Pro Ultra batteries for a total 18,432 watts power. Bundle priced at $6,999. Use code WTS15 for 15% savings to bring price down to $5,949.15

Designed to be paired with the Ecoflow Delta Pro Ultra Powerstation


https://www.earthtechproducts.com...y-kit.html
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About the Poster
Bundle of 3 EcoFlow Dekta Pro Ultra batteries for a total 18,432 watts power. Bundle priced at $6,999. Use code WTS15 for 15% savings to bring price down to $5,949.15

Designed to be paired with the Ecoflow Delta Pro Ultra Powerstation


https://www.earthtechproducts.com...y-kit.html

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17 Comments

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Feb 21, 2025 4:53 PM
1.3K Comments
Joined Jul 2009
ViciousXUSMCFeb 21, 2025 4:53 PM
1.3K Comments
Seems like a good deal if you already have that unit and need capacity. I got the Delta 3 Plus, too bad I cant use them.
Feb 21, 2025 5:48 PM
95 Comments
Joined Mar 2021
iamthinksnowFeb 21, 2025 5:48 PM
95 Comments
Quote from ViciousXUSMC View quoted comment :
Seems like a good deal if you already have that unit and need capacity. I got the Delta 3 Plus, too bad I cant use them.
You can't plug these batteries into the other/tower style of unit? That seems like a dumb design choice.
3
Feb 21, 2025 6:05 PM
1.3K Comments
Joined Jul 2009
ViciousXUSMCFeb 21, 2025 6:05 PM
1.3K Comments
Quote from iamthinksnow View quoted comment :
You can't plug these batteries into the other/tower style of unit? That seems like a dumb design choice.
That seems to be the case, there is not just power but also communication with the battery.
The Plus like I have is more of a camping or small appliance unit while the Ultra is more for home backup and grid tied.

So these are much bigger and heavier and may not really fit the portable profile, but it would be nice to atleast have the option, even with an adapter. Id get them mayyybe since I do have two pluses, otherwise I would go DIY for a whole home setup personally.
1
Feb 21, 2025 6:35 PM
516 Comments
Joined Feb 2018
therex10Feb 21, 2025 6:35 PM
516 Comments
Quote from ViciousXUSMC View quoted comment :
That seems to be the case, there is not just power but also communication with the battery.
The Plus like I have is more of a camping or small appliance unit while the Ultra is more for home backup and grid tied.

So these are much bigger and heavier and may not really fit the portable profile, but it would be nice to atleast have the option, even with an adapter. Id get them mayyybe since I do have two pluses, otherwise I would go DIY for a whole home setup personally.
What in your opinion is the best price & setup for DIY for a whole home setup? looking to do this possibly next year if the price is right​
Feb 21, 2025 7:05 PM
1.3K Comments
Joined Jul 2009
ViciousXUSMCFeb 21, 2025 7:05 PM
1.3K Comments

Our community has rated this post as helpful. If you agree, why not thank

Quote from therex10 View quoted comment :
What in your opinion is the best price & setup for DIY for a whole home setup? looking to do this possibly next year if the price is right​
Either a DIY battery using LifePo4 Cells, or one of the big 24/48v prebuilt batteries (rack mount or vertical format)

I would get one of the cases for the DIY battery with BMS and all that, and used the pre-encosed cells not invidual 188650's

So $600 for the case (seen them cheaper) and the cells.

Here for example is a $2000 all in one kit for $2000 that gives you a 15Khw battery
by comparison say the Ecoflow Ultra is 6Kwh for $2800 (current price direct)

https://www.basengreen.com/produc...ories-usa/

https://us.ecoflow.com/products/d...ra-battery

This deal makes 3 batteries $2000 each, so we are still beating that by a good margin and this battery is universal not propritary.

Its common to even use batteries like this with a unit like an ecoflow by hooking them up to the solar input, and that is why a 48v battery is so good, as it falls in a good range for the solar input to maximize efficentcy.
2
Feb 23, 2025 1:46 PM
412 Comments
Joined Aug 2019
OrangeApparel8487Feb 23, 2025 1:46 PM
412 Comments
DIY value has it all over these things, as usual.

BUT if you require portability (as portable as this much weight can be), I guess these are a good value when added to the base unit. Or rolling around your house or whatever.
18kw is a lot of capacity and can keep some things running a good long time if you understand usage.

Kinda limits flexibility to expand and do other things though when you're limited to this "ecosystem" I guess you'd call it.
Feb 24, 2025 1:50 AM
277 Comments
Joined Dec 2014
savenmavenFeb 24, 2025 1:50 AM
277 Comments
Does anyone know if these can export power to the grid? The website has conflicting info.

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Feb 24, 2025 7:31 AM
610 Comments
Joined Aug 2009
xcougarFeb 24, 2025 7:31 AM
610 Comments
Quote from OrangeApparel8487 View quoted comment :
DIY value has it all over these things, as usual.

BUT if you require portability (as portable as this much weight can be), I guess these are a good value when added to the base unit. Or rolling around your house or whatever.
18kw is a lot of capacity and can keep some things running a good long time if you understand usage.

Kinda limits flexibility to expand and do other things though when you're limited to this "ecosystem" I guess you'd call it.
if it fits what one needs, installation cost for delta ultra based system can make up for the cost difference depending on details. In one end of the spectrum if one has a transfer switch for generators anyway you could just plug it in without install cost.
for cold winter charging delta ultra has heating for instance, have not seen a DIY or battery kit with that option.

I think delta 3 pro can use couple of these also, not just the ultra inverter.
Feb 24, 2025 1:52 PM
524 Comments
Joined Jul 2022
HonestWealth2655Feb 24, 2025 1:52 PM
524 Comments
Can't help but feel these are going to be similar to hard drives. Remember the days when $1/MB seemed like a bargain?
Feb 24, 2025 5:38 PM
1.4K Comments
Joined Feb 2005
rb5505Feb 24, 2025 5:38 PM
1.4K Comments
$.32/wh is impressive pricing. two pack is also 15% off, with same per wh price as 3 pack. https://www.earthtechproducts.com...y-kit.html
Last edited by rb5505 February 24, 2025 at 10:00 AM.
Feb 24, 2025 6:38 PM
4 Comments
Joined Dec 2019
PurpleRoute149Feb 24, 2025 6:38 PM
4 Comments
Any one for NorCal using these? Wondering if I can use them with Time of Use Rate Plans. I already have a solar and I am on a EV-2 Plan. I wonder if this allow to change during off peak hours and use during peak hours? Probably can discharge back to grid during peak hours.
Feb 25, 2025 3:40 AM
1.4K Comments
Joined Feb 2005
rb5505Feb 25, 2025 3:40 AM
1.4K Comments
Quote from PurpleRoute149 View quoted comment :
Any one for NorCal using these? Wondering if I can use them with Time of Use Rate Plans. I already have a solar and I am on a EV-2 Plan. I wonder if this allow to change during off peak hours and use during peak hours? Probably can discharge back to grid during peak hours.
Feb 25, 2025 11:52 AM
18 Comments
Joined Dec 2015
KeN4483Feb 25, 2025 11:52 AM
18 Comments
Possible connection with eg4 inverters?
Feb 25, 2025 4:26 PM
117 Comments
Joined Aug 2022
The_SpendermanFeb 25, 2025 4:26 PM
117 Comments
Can a Delta 3 plus be able to use all 3?

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Feb 28, 2025 4:09 AM
1.1K Comments
Joined Dec 2006
jaco22Feb 28, 2025 4:09 AM
1.1K Comments
Quote from The_Spenderman View quoted comment :
Can a Delta 3 plus be able to use all 3?
Only compatible with delta pro ultra units

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