EcoFlow DELTA 3 Extra Battery

DaShadow577

Last Sunday

851 Posts

Joined Feb 2012

Last Sunday

DaShadow577

Last Sunday

851 Posts

Does it work with delta 2? Any benefits over delta 2 extra battery?

David_David

Original Poster

Pro

Last Sunday

40 Posts

Joined Mar 2025

Last Sunday

David_David

Last Sunday

Original Poster

Pro

40 Posts

Quote from DaShadow577

:

Does it work with delta 2? Any benefits over delta 2 extra battery?

yes D3 EB works with D2 (not D2Max) but other than size, and the right angle connection cable, D2 EB can generally be had for less $ and physical/style match with D2...

1

Plutomania

6d ago

141 Posts

Joined Mar 2018

6d ago

Plutomania

6d ago

141 Posts

Yes, it's the lowest I've seen too, but it's still way more expensive per watt than a typical LiFePO4 battery. EcoFlow is making us pay 3 times the market rate. One can buy a 48V 50Ah battery for the same money, but it will not charge from the EcoFlow.

2

DaShadow577

6d ago

851 Posts

Joined Feb 2012

6d ago

DaShadow577

6d ago

851 Posts

Quote from Plutomania

:

Yes, it's the lowest I've seen too, but it's still way more expensive per watt than a typical LiFePO4 battery. EcoFlow is making us pay 3 times the market rate. One can buy a 48V 50Ah battery for the same money, but it will not charge from the EcoFlow.

Any links to make a eternal battery DIY? That you could recharge off of?

SmartSeed8854

6d ago

114 Posts

Joined Oct 2021

6d ago

SmartSeed8854

6d ago

114 Posts

Quote from DaShadow577

:

Any links to make a eternal battery DIY? That you could recharge off of?

You can use the Ecoflow Alternator. https://youtu.be/ReGWks3ENc4

1

Comcastrated

6d ago

269 Posts

Joined Sep 2014

6d ago

Comcastrated

6d ago

269 Posts

Quote from DaShadow577

:

Any links to make a eternal battery DIY? That you could recharge off of?

It''s not complicated. I'm using a lifepo4 battery, a lifepo4 battery charger, and a m8 to xt60i cable from the battery to the ecoflow solar input. The higher the voltage of the battery, the faster it charges the ecoflow. I'm using a 12V battery, which is good for my needs, but charges the ecoflow at only 200w. I believe a 48V would max out at 500w input. There are a million videos on youtube about all this.

2

Caleo

Yesterday

5,575 Posts

Joined Dec 2004

Yesterday

Caleo

Yesterday

5,575 Posts

Quote from Comcastrated

:

It''s not complicated. I'm using a lifepo4 battery, a lifepo4 battery charger, and a m8 to xt60i cable from the battery to the ecoflow solar input. The higher the voltage of the battery, the faster it charges the ecoflow. I'm using a 12V battery, which is good for my needs, but charges the ecoflow at only 200w. I believe a 48V would max out at 500w input. There are a million videos on youtube about all this.

A 48V should max out the 500W input, yes, provided you have the XT60i cable. The 'i' part is important, it signifies that it has the extra pin that the Ecoflow uses as a green light to pull 15A, instead of just 8A, which is meant to protect fuses when using with cigarette sockets in cars (typically 100-120W).

Nice thing about the D3 Plus is that it has 2x 500W solar inputs, so if you want to run it off one 48V battery you can pretty easily, with up to around 1000W input from it (which is usually no sweat for a 48V battery setup).
Basically just need a 'y' adapter', ideally some 30A+ (over)rated wire, and some fuses for safety. There is some amount of loss doing this though, since it's being done via the D3P's MPPT charge controller(s). Not a terrible loss (maybe up to 10%), but I think their own proprietary batteries don't lose as much.

EcoFlow DELTA 3 Extra Battery - $449.99

$450

$600

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