ECO-WORTHY 51.2V 280AH 14.336kWh Beasty Battery

[Brucey]

That is not cool dude Don't tempt me I haven't got a new battery since Monday! I am on my second day to recovery

I guess I need to make my recovery group "Friends of Bob,"

Ironically that also stands for "Freight on Board"

Bob you thought you were ok with 280Ah, how about this fatboy?

 

[jorby]

The shipping is gonna hurt on that big thing!

Bob you thought you were ok with 280Ah, how about this fatboy?

View attachment 284480

 

[jorby]

that is the price on the floor in China for the version with non-EV cells.

I EDITed this (because I found the China store)

 

[Brucey]

The price has to be wrong too. They charge that for a lot smaller battery.

Price is correct but that's out of China, before ddp.

 

[BarracudaBob]

It slow charged all day today. It came up to the defined capacity. I discharged it slightly and then put it on the lowest current I could that would register in the software 0.58A with a differential of 54mV.




I'll put it on the Cement Pond Dummy Load one more time tonight.

 

[jorby]

Price is correct but that's out of China, before ddp.

I asked about a 14kwh a while ago. DDP was $900 each!

 

[BarracudaBob]

Bob you thought you were ok with 280Ah, how about this fatboy?

View attachment 284480

There are no handles.. I looked at some other big roller batteries and I do like the E-W handles on the top corners the best. It makes it easy to control it as I roll it over my cracked driveway

 

[Brucey]

There are no handles.. I looked at some other big roller batteries and I do like the E-W handles on the top corners the best. It makes it easy to control it as I roll it over my cracked driveway

*Weight:380Kgs (net weight 252kgs)
*Size:720*435*1100mm (Package size:785*500*1100mm)

I think we are beyond the capabilities of even two grown men.

 

[BarracudaBob]

*Weight:380Kgs (net weight 252kgs)
*Size:720*435*1100mm (Package size:785*500*1100mm)

I think we are beyond the capabilities of even two grown men.

"Price doesn't include hernia operation"

 

[robby]

Oh I see it I had given up earlier.

Still too risky for me with this recent negative feedback

View attachment 284474

Edited to add: this is feedback from the s power battery seller robby linked to, not the ecoworthy battery.

More than one seller as far as I can tell.
I suspect like the Varter there will be several sellers for this product.

 

[BarracudaBob]

I have been to busy working, coming home, eating, playing with the beast, update my DIYFORUM, go to bed, rinse repeat.. Not much time for the news or shopping around right now so thanks for keeping me in the know.. Change is in the air

The beast is on discharge. I moved the Capacity Coulomb Counter up a little more to see what she will give me. I have to pull out all my wires out of the pool for the grandkids on Friday. Daughter looks at me strange when I say jump on in with 8 power cords hanging in over the side

 

[Jmhai3]

For the price, why not just buy a couple more server rack batteries.

Agree,
Just if it was me would want all my products to play together no matter the product or year made.
I would want integration across the line, like Victron.

 

[Jmhai3]

It slow charged all day today. It came up to the defined capacity. I discharged it slightly and then put it on the lowest current I could that would register in the software 0.58A with a differential of 54mV.

View attachment 284489
View attachment 284490

I'll put it on the Cement Pond Dummy Load one more time tonight.

Is that a bubble or a crack in the top left corner of the screen?
Probably easily replaceable if the latter.

 

[BarracudaBob]

Is that a bubble or a crack in the top left corner of the screen?
Probably easily replaceable if the latter.

It is either a hair or the plastic screen cover. I have been pressing a lot of buttons

 

[BarracudaBob]

So discharge #3
I am done cycling, getting the itch to crack this egg open Sounds like a weekend plan.

Battery Display

The 0.03A was to wake up the BMS and Smart Shunt.


Victron Smart Shunt

Why is the cumulative and the last and deepest not all the same number if it was just one discharge. The cumulative slightly less?

 

[Giddy77]

Thanks for getting one of these and testing it out. From what I gathered this will work with the EG4 6000xp. My plan is to get a the EG4 6000xp. Hook the AC input to it and one of these batteries connected to a critical load subpanel in my garage for my 240v well pump, freezer and some lights incase of grid power loss.

 

[flavio404]

So discharge #3
I am done cycling, getting the itch to crack this egg open Sounds like a weekend plan.

I'll be patiently waiting. Ebay discount is up till 3/16. Might get another one if the inside looks good!

 

[BarracudaBob]

I put all the settings back to factory default. No question about the capacity.

More cycling and balancing required. Looks like the barracuda bobster top balance method is required. Any suggestions?

 

[Brucey]

I put all the settings back to factory default. No question about the capacity.

More cycling and balancing required. Looks like the barracuda bobster top balance method is required. Any suggestions?

View attachment 284870

Maybe time to add active balancing to the feature list for 280Ah v2 or v3?

 

[BarracudaBob]

Maybe time to add active balancing to the feature list for 280Ah v2 or v3?

We all know that a five amp active balancer would solve this.

I'm going to try top balancing it with my external 15 amp cycle it once with it connected and see how it does afterward.

But adding an active balancer would increase sales we all know it works as long as it's set properly at 3.45v and the real bad ones at 3.42.

These cells are excellent capacity so a simple addition probably solve the issue.

I really wanted to try to do it like the average Joe would see what would happen. It takes a lot of effort to charge and discharge one of these Beastie boys. My pool is now 85° f

 

[Brucey]

Honestly for Joe 6 pack they have would no idea what an active balancer was. Or lack of fuses/circuit breakers. They just see 14kWh for $2300 or whatever versus now the eg4s at much more post price increase and click on buy. But the midnite powerflo 16kWh has 2A active balancing so will be nice to give it some competition function wise. If nowhere near the same price bracket.

 

[Q-Dog]

Looks like it delivers full capacity. Futzing around with balancing now is looking for problems that don't exist.

 

[Brucey]

Looks like it delivers full capacity. Futzing around with balancing now is looking for problems that don't exist.

Exactly, same with the 5kWh rack mounts. They deliver rated capacity without faffing around. From what I recall they had mentioned better battery matching coming online so cell deviation should be even less going forward.

 

[agtcovert]

Exactly, same with the 5kWh rack mounts. They deliver rated capacity without faffing around. From what I recall they had mentioned better battery matching coming online so cell deviation should be even less going forward.

Good points and likely accurate for the average buyer. I don't think @BarracudaBob will be satisfied until it's balanced.

And there's a small possibility that an outlier cell could cause issues charging by hitting OVP too soon. Same if it was a low cell. Be interesting to see if / how long the passive balancer takes to sort it out on a battery this big. I know the Pace 100A BMS was able to fix a wide deviation on the budget rack mounts I got recently, but that's 100Ah, and I held the pack at 56V for I can't remember how many hours. To my surprise, it did fix the deviation and it's been fine since.

 

[BarracudaBob]

Looks like it delivers full capacity. Futzing around with balancing now is looking for problems that don't exist.

I disagree cuz all my batteries can go up to 56.6 volts at least once a week to top balance this thing would never make it past upper 55 volt range and always going to alarm.

If it's as simple as putting my external active balancer on it letting it fix the issue cycle one or two more times and it never returns I think it's effort well done

I wouldn't be happy with anything over 60 millivolt imbalance and inability to reach the 100% BMS reset voltage would be unacceptable.

The saga continues

More research required (more fiddling around)

Because once it connects to the main battery of batteries' it doesn't get messed around with too much anymore.