EcoFlow DELTA 2 Max Portable Power Station | DELTA 2 Max + 800W Alternator Charger - $1044.05

StrategyFreak

Mar 20, 2025 10:03 PM

731 Comments

Joined Mar 2009

StrategyFreakMar 20, 2025 10:03 PM

731 Comments

Horrible price! The baseline for a good deal should be $0.5/Wh or below. But this Delta 2 Max is getting up there in age and also has very high standby drain (low efficiency). For this, $0.35/Wh should be the threshold

The "alternator charger," which is no more than a DC-DC converter, is worth no more than $150 on its own, regardless of how extortionate a "list price" is.

Who gave thumbs up to this post?? Bots? lol

4

5

WeiW8847

Pro

Mar 20, 2025 10:12 PM

5.6K Comments

Joined Oct 2013

WeiW8847

Pro

Mar 20, 2025 10:12 PM

5.6K Comments

Quote from StrategyFreak

:

Horrible price! The baseline for a good deal should be $0.5/Wh or below. But this Delta 2 Max is getting up there in age and also has very high standby drain (low efficiency). For this, $0.35/Wh should be the threshold

The "alternator charger," which is no more than a DC-DC converter, is worth no more than $150 on its own, regardless of how extortionate a "list price" is.

Who gave thumbs up to this post?? Bots? lol

If you are willing to spend another $450, you can get an extra battery and alternator from Costco next.

So a total of 4096/$1400($1500-$100 alternator)~ around 0.34/0.35. See I only -$100 for alternator.

Last edited by WeiW8847 March 20, 2025 at 03:18 PM.

1

StrategyFreak

Mar 20, 2025 10:23 PM

731 Comments

Joined Mar 2009

StrategyFreakMar 20, 2025 10:23 PM

731 Comments

Quote from WeiW8847

:

If you are willing to spend another $450, you can get an extra battery and alternator from Costco next.

So a total of 4096/$1400($1500-$100 alternator)~ around 0.34/0.35. See I only -$100 for alternator.

Yeah, that's a better deal and typically isn't a limited time thing. And ultimately unless you are fulltime van life-ing it or camping a lot the DC-DC converter doesn't get heavy use anyway

WeiW8847

Pro

Mar 20, 2025 10:37 PM

5.6K Comments

Joined Oct 2013

WeiW8847

Pro

Mar 20, 2025 10:37 PM

5.6K Comments

Quote from StrategyFreak

:

Yeah, that's a better deal and typically isn't a limited time thing. And ultimately unless you are fulltime van life-ing it or camping a lot the DC-DC converter doesn't get heavy use anyway

😂that deal is a limited-time offer only. I can't find any better deal around 4096wh for $1400. The eco-flow Delta Pro supports 240v and 3000ish wh but weighs around 100 lbs. I'm looking for an easy weight lifting for aged women to carry around for backup electricity. The setup is only temporary but can be transferred to a permanent setup later. The only way I can think of is to buy Ecoflow Delta Max with a battery, each weighing around 50 lbs. I can use the battery for the fridge to save some money, and I can add the battery to the whole house setup later when I have a bigger battery.

WeiW8847

Pro

Mar 20, 2025 10:45 PM

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Joined Oct 2013

WeiW8847

Pro

Mar 20, 2025 10:45 PM

5.6K Comments

Quote from killercut

:

I am pretty happy with having a delta 2 from temu just under $300, and the alternator for almost $200. Then I got some of those dumfume 100ah mini for $80 each, renogy 220w rigid suitcase panels for $145, these are all prices after using coupons, plus wires and other free junk to play with for free... This is just for backup if power goes out. Plus if I ever need it for anything else it's small, light and I can take whatever capacity I need with me. 1kwh, 2.3kwh, 3.6kwh, etc... also got a river 3 plus for under $120 to play with or sell... gonna fully charge everything, then store at 50%. then if we lose power, I got a $400 ai power (yamaha) 2400 gas generator from costco to recharge. should take 1-3 hours to charge my whole system at 3.6kwh, using the alternator to charge the 100ah packs in parallel... I would only need to run the fridge and maybe some lights at most at night. After a hurricane it stays pretty cool for a while in FL, and power is usually back up in a few days.

I heard something or somewhere say that you can't charge the Eco Flow with any random generator. The Eco Flow requires a sine wave gas generator. Don't ask me if it's a real story. Now, I have a similar setup to yours. The only difference is that I want to use it to provide electricity for the fridge to save some money. I'm considering using solar panels to charge the thing and bringing it for the washer, too. I planned to buy the battery for the EG4 air conditioner, but it looks like I need a whole house battery to run all night long.

killercut

Pro

Mar 20, 2025 10:52 PM

1.2K Comments

Joined Dec 2013

killercut

Pro

Mar 20, 2025 10:52 PM

1.2K Comments

Quote from WeiW8847

:

I heard something or somewhere say that you can't charge the Eco Flow with any random generator. The Eco Flow requires a sine wave gas generator. Don't ask me if it's a real story. Now, I have a similar setup to yours. The only difference is that I want to use it to provide electricity for the fridge to save some money. I'm considering using solar panels to charge the thing and bringing it for the washer, too. I planned to buy the battery for the EG4 air conditioner, but it looks like I need a whole house battery to run all night long.

Maybe some very cheaply made Chinese junk will be a modified sine wave and wont work, but most generators are going to be pure sine wave and the ecoflow won't be able to tell that it's from a generator. If you have trouble getting it to charge you could probably turn off eco/idle mode on the gen, then plug it into the ecoflow, then wait for it to get to full charging power then put eco mode if you want it back on... if you have space for solar then that's great. right now I am in an hoa, no solar allowed, heh. and we finally reached the point where buying lifepo4 packs are actually worth it. with good coupons on temu I can get the 12v 100ah packs for $60 or less.

when I lived in CT and we lost power for weeks after tornadoes, I was able to cool the entire house with 2 mini split systems (4000sf+ house), using a generator. mini splits are like 500w-1000w per ton while running. also depends on what fan speed you set it to, low speed will likely be 200w or so. I definitely recommend a mini split vs any other type of air conditioning unit. actually the midea u window unit is good too, it's technically a mini split as well...

Last edited by killercut March 20, 2025 at 04:13 PM.

WeiW8847

Pro

Mar 20, 2025 11:10 PM

5.6K Comments

Joined Oct 2013

WeiW8847

Pro

Mar 20, 2025 11:10 PM

5.6K Comments

Quote from killercut

:

Maybe some very cheaply made Chinese junk will be a modified sine wave and wont work, but most generators are going to be pure sine wave and the ecoflow won't be able to tell that it's from a generator. If you have trouble getting it to charge you could probably turn off eco/idle mode on the gen, then plug it into the ecoflow, then wait for it to get to full charging power then put eco mode if you want it back on... if you have space for solar then that's great. right now I am in an hoa, no solar allowed, heh. and we finally reached the point where buying lifepo4 packs are actually worth it. with good coupons on temu I can get the 12v 100ah packs for $60 or less.

I'm setting this up for Mom before I leave her alone in this small town. I only live here for about five years. I don't see any power outages so far. A power cut-off for one to two seconds happened from time to time. Therefore, I install many surge
protectors where I plug things in. Well, I still have a year in here with Mom anyway. I only began to collect restitution from a fraud contractor this month. The case is not over yet. We can't hire a new contractor to finish what's left on an unfinished patio. What can I say? The law goes too easy on these types of people.

2

PurpleLeopard2153

Mar 21, 2025 1:47 AM

6 Comments

Joined Apr 2021

PurpleLeopard2153Mar 21, 2025 1:47 AM

6 Comments

This is an impressive battery backup! I have one and it's proven to be incredibly reliable, keeping everything running smoothly during outages and ensuring no interruptions. Definitely a great investment!

1

Magentawave

Mar 21, 2025 2:07 AM

6 Comments

Joined Mar 2025

MagentawaveMar 21, 2025 2:07 AM

6 Comments

Quote from StrategyFreak

:

Yeah, that's a better deal and typically isn't a limited time thing. And ultimately unless you are fulltime van life-ing it or camping a lot the DC-DC converter doesn't get heavy use anyway

The best deal for the D2M is $700 at ebay for reconditioned with full 5 year factory warranty. I paid $200 for the Ecoflow Alternator Charger.

DianaND33

Mar 21, 2025 2:21 AM

182 Comments

Joined Nov 2024

DianaND33Mar 21, 2025 2:21 AM

182 Comments

EFSAVE5 does work on this listing. Not sure why SD has a comment on red. The code worked for me!

2

GreyString8671

Original Poster

Mar 21, 2025 2:23 AM

124 Comments

Joined Mar 2024

GreyString8671

Original Poster

Mar 21, 2025 2:23 AM

124 Comments

Quote from Magentawave

:

The best deal for the D2M is $700 at ebay for reconditioned with full 5 year factory warranty. I paid $200 for the Ecoflow Alternator Charger.

Definitely a good price for refurb, but this is new and you get ecocredits for not much more

EtherGnat

Mar 21, 2025 2:24 AM

2K Comments

Joined Jan 2005

EtherGnatMar 21, 2025 2:24 AM

2K Comments

Currently charging off a Delta 2 Max we got for camping a couple months ago refurbished for $699, charged by 800 watts of solar panels. It works great, aside from the battery progress status being pretty much fubarred (under consistent draw loses about 7% an hour for about 14 hours, then lasts 14 hours at 1%), but support so far has been OK. Aside from the fact they asked me to send them a video of the issue. No, I'm not sending you a 30 hour video.

KNlCKS

Mar 21, 2025 3:24 AM

845 Comments

Joined Jun 2006

KNlCKSMar 21, 2025 3:24 AM

845 Comments

I just bought this last week and it came with a free bag. Same price too https://us.ecoflow.com/products/e...lash-sale?

Pigeon

Mar 21, 2025 4:14 AM

1.8K Comments

Joined Dec 2005

PigeonMar 21, 2025 4:14 AM

1.8K Comments

How many ah is the battery? Wouldn't it be alot cheaper just to get an inverter and battery?

EcoFlow DELTA 2 Max Portable Power Station | DELTA 2 Max + 800W Alternator Charger - $1044.05

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