ECO-WORTHY 48V 100Ah 5120Wh LiFePO4 Server Rack Battery

[SoTxUser]

I'm getting the E-W battery on Monday. Will the EG4 Comm Hub connect to the battery? If so, which connection do I use and what protocol?
I'm connecting the battery to the 6500EX-48. If it works I may add another one.

Thanks in advance,
tsp

 

[BarracudaBob]

I'm getting the E-W battery on Monday. Will the EG4 Comm Hub connect to the battery? If so, which connection do I use and what protocol?
I'm connecting the battery to the 6500EX-48. If it works I may add another one.

Thanks in advance,
tsp

The EG4 can output many formats but can only receive EG4 LifePower4 V1 batteries. If you have EG4 LP4V1 and using it keep it the same and install the E-W in parallel with the other batteries. The EW will be open coms. EG4 V1 will only play nice with EG4 V1.

the inverter is capable of doing other protocols but if you have a bunch of EG4 LP4V1 leave it alone.

Obviously the battery voltage and SOC need to be similar when you connect them.

 

[DVD]

I thought I’d share a recent “buyer beware” experience regarding EW server rack batteries.
I had already purchased a pair of what I learned to be V2’s. When I decided to throw the dice on eBay for another 2, I thought I had read the description carefully and determined it was a pair of V2’s. When I opened the box I first saw the “bent ears”, then saw the white label with the MAC address missing. You got it! They shipped me V1’s. When I contacted about the damage and misleading description, they said the listing clearly stated Gen 1 without BT and WiFi. Since I had no screenshot of the original listing and couldn’t bring it up, I didn’t have much to go on.

If you are going to use eBay auctions for these batteries, take screenshots or get a response that they are indeed Gen 2’s.

 

[doc3g]

I thought I’d share a recent “buyer beware” experience regarding EW server rack batteries.
I had already purchased a pair of what I learned to be V2’s. When I decided to throw the dice on eBay for another 2, I thought I had read the description carefully and determined it was a pair of V2’s. When I opened the box I first saw the “bent ears”, then saw the white label with the MAC address missing. You got it! They shipped me V1’s. When I contacted about the damage and misleading description, they said the listing clearly stated Gen 1 without BT and WiFi. Since I had no screenshot of the original listing and couldn’t bring it up, I didn’t have much to go on.

If you are going to use eBay auctions for these batteries, take screenshots or get a response that they are indeed Gen 2’s.

I continue to echo this sentiment for buyer beware of dealing with EW. I bought and returned a pair of solar panels in November of last year and am still waiting for a refund despite them acknowledging that they have received the returns.

 

[SoTxUser]

The EG4 can output many formats but can only receive EG4 LifePower4 V1 batteries. If you have EG4 LP4V1 and using it keep it the same and install the E-W in parallel with the other batteries. The EW will be open coms. EG4 V1 will only play nice with EG4 V1.

the inverter is capable of doing other protocols but if you have a bunch of EG4 LP4V1 leave it alone.

Obviously the battery voltage and SOC need to be similar when you connect them.

I do have 5 LP4 V1 batteries connected to an 18KPV with the hub but had to remove the hub when I added a new eg4 II-S battery. The stack of LP4 V1 and one II-S are now in close loop with the 18KPV but without the comm hub. I was now adding the 6500EX to my house to assist in powering a few non critical loads (totally separate load). I could use the comm hub on the 18KPV if I remove the II-S and add it to the 6500 but I hate to decrease the 30KWh of the 18kpv. It does the heavy lifting.

tsp

 

[JohnKl]

18kpv + PowerPro (14.3kwh) + EW (5kwh).

What is the best way to connect these two different size batteries parallel.

Still experimenting and kept PowerPro closed loop and connected EW parallel.

Charging both batteries seemed going fairly balanced. So as the sun set, they were both at around 70% or so. In the morning EW had drained down to zero and EG4 was at around 64%. So EW won big time (or lost).

Obviously not surprised but any recommendations?

- go open loop for both batteries? Will this even help?
- set EW to for example never drop below 10 or 20%? Less usable capacity but i am fine with that.
- or this is a not recommended configuration?

 

[SoTxUser]

18kpv + PowerPro (14.3kwh) + EW (5kwh).

What is the best way to connect these two different size batteries parallel.

Still experimenting and kept PowerPro closed loop and connected EW parallel.

Charging both batteries seemed going fairly balanced. So as the sun set, they were both at around 70% or so. In the morning EW had drained down to zero and EG4 was at around 64%. So EW won big time (or lost).

Obviously not surprised but any recommendations?

- go open loop for both batteries? Will this even help?
- set EW to for example never drop below 10 or 20%? Less usable capacity but i am fine with that.
- or this is a not recommended configuration?

I'm guessing that the 18KPV is drawing from both batteries in parallel thus equally. One bank has 14.3 and the other only has 5.12 to supply. A better balance is if you get two more EW batteries (14.3 & 15 kWh) but maybe you should try open loop via voltage setting. No cost in trying that.

tsp

 

[Gavin Stone]

18kpv + PowerPro (14.3kwh) + EW (5kwh).

What is the best way to connect these two different size batteries parallel.

Still experimenting and kept PowerPro closed loop and connected EW parallel.

Charging both batteries seemed going fairly balanced. So as the sun set, they were both at around 70% or so. In the morning EW had drained down to zero and EG4 was at around 64%. So EW won big time (or lost).

Obviously not surprised but any recommendations?

- go open loop for both batteries? Will this even help?
- set EW to for example never drop below 10 or 20%? Less usable capacity but i am fine with that.
- or this is a not recommended configuration?

Charge them both together to 100%/ 57v or above. At that point they should charge and discharge at essentially the same rate. The EW was likely at a lower SoC than it stated originally.

 

[chamilun]

Was gonna take the antenna out of the case today and the screws will literally not come off. Ended up stripping the heads. So decided to stop that for now

 

[JohnKl]

Charge them both together to 100%/ 57v or above. At that point they should charge and discharge at essentially the same rate. The EW was likely at a lower SoC than it stated originally.

Copy. Plenty of sun today to get them both to 100%.

When EW drained to zero, eg4 PowerPro stopped working too and 18kpv seemed like was in a weird startup state. Resetting 18kpv and PowerPro brought everything back to normal. Haven't looked at the data to see if can figure out why but think still a good idea to not let EW to ever drop to 0 so it will be in more of a graceful 'hold' state? Or i guess if i am in truly balanced state, it shouldn't happen/matter?

Thanks

 

[Brucey]

Copy. Plenty of sun today to get them both to 100%.

When EW drained to zero, eg4 PowerPro stopped working too and 18kpv seemed like was in a weird startup state. Resetting 18kpv and PowerPro brought everything back to normal. Haven't looked at the data to see if can figure out why but think still a good idea to not let EW to ever drop to 0 so it will be in more of a graceful 'hold' state? Or i guess if i am in truly balanced state, it shouldn't happen/matter?

Thanks

I would absolutely go open loop if mixing batteries with comms and those without. Begging for trouble otherwise.

 

[JohnKl]

I would absolutely go open loop if mixing batteries with comms and those without. Begging for trouble otherwise.

Yes, as i am charging them both up towards 100%, i am realizing that is going to be the best option as SOC %s and voltage values don't line up but suppose when i get to 100% they will look better. Will see, just curious but yeah likely switch to open loop. Thanks.

 

[BarracudaBob]

Yes, as i am charging them both up towards 100%, i am realizing that is going to be the best option as SOC %s and voltage values don't line up but suppose when i get to 100% they will look better. Will see, just curious but yeah likely switch to open loop. Thanks.

Looking at the PowerPro Manual it says it can take 56.8V and the E-W 100% BMS reset is 56.8V so take both of them up to that level. I don't know where the PowerPro will alarm out but try 57.0V. Let them sit for at least an hour or two so everybody balances out properly and then connect them up together. Because the are not the same capacity their SOC will drift but expected.

Keep closed loop on the PowerPro and the E-W will follow its lead. They should play happy with each other.

You could let them discharge down and then charge them up. The smaller battery should track the larger capacity one.

 

[JohnKl]

Looking at the PowerPro Manual it says it can take 56.8V and the E-W 100% BMS reset is 56.8V so take both of them up to that level. I don't know where the PowerPro will alarm out but try 57.0V. Let them sit for at least an hour or two so everybody balances out properly and then connect them up together. Because the are not the same capacity their SOC will drift but expected.

Keep closed loop on the PowerPro and the E-W will follow its lead. They should play happy with each other.

You could let them discharge down and then charge them up. The smaller battery should track the larger capacity one.

View attachment 278419

Thanks. Yeah rookie mistake hooking up EW out of a box without balancing the two batteries first relative to each other or at least taking them both to 100% on day 1 instead of day 2

Been using solar/inverter to charge batteries.

Recommendations on what charger i should buy to charge/balance these batteries in a standalone setting? Stupid sun won't stay up 24/7. Thanks.

 

[wildbird12]

Let me see if I am following you.
Is it that the Battery is providing a Wifi hotspot and that you connect your phone to that Battery WiFi SSID and then open the App OR is it that you connect to the battery via Bluetooth and then use the App to find a Router to connect the Battery to. It then prompts for Password and is permanently connected. If so I assume each battery can connect to the Wifi and be seen on the App once it is connected to the router.

The concept is the latter. For the first battery, you need to connect via BT first and then connect it to your WiFi. Once the App has learned your WiFi settings, you simply look for more batteries to add and connect them to your WiFi SSID and Password until they are all visible in WiFi. Once you have connected all the batteries, you can "bind" them and thus have a neat stack that you can jump around in from one battery to the other.

 

[wildbird12]

I thought I’d share a recent “buyer beware” experience regarding EW server rack batteries.
I had already purchased a pair of what I learned to be V2’s. When I decided to throw the dice on eBay for another 2, I thought I had read the description carefully and determined it was a pair of V2’s. When I opened the box I first saw the “bent ears”, then saw the white label with the MAC address missing. You got it! They shipped me V1’s. When I contacted about the damage and misleading description, they said the listing clearly stated Gen 1 without BT and WiFi. Since I had no screenshot of the original listing and couldn’t bring it up, I didn’t have much to go on.

If you are going to use eBay auctions for these batteries, take screenshots or get a response that they are indeed Gen 2’s.

I saw those batteries and they were quite a bit cheaper than the V2s. The obvious difference was that the image did not show the phone/app, but I agree that this is kind of underhanded. I also did not notice any indication of V1, so definitely not an upfront approach...

 

[wildbird12]

Thanks. Yeah rookie mistake hooking up EW out of a box without balancing the two batteries first relative to each other or at least taking them both to 100% on day 1 instead of day 2

Been using solar/inverter to charge batteries.

Recommendations on what charger i should buy to charge/balance these batteries in a standalone setting? Stupid sun won't stay up 24/7. Thanks.

Get a variable power supply that goes to 60V and about 5A—this is the one I use. The fine adjustment of the current is very helpful for top balancing. Above 55.4V, I usually keep it under 250mA, and above 56V, I usually drop it to about 100mA to give the cells time to balance.

 

[Brucey]

Thanks. Yeah rookie mistake hooking up EW out of a box without balancing the two batteries first relative to each other or at least taking them both to 100% on day 1 instead of day 2

Been using solar/inverter to charge batteries.

Recommendations on what charger i should buy to charge/balance these batteries in a standalone setting? Stupid sun won't stay up 24/7. Thanks.

I would just let solar do the job assuming you'll get a full solar day at some pooint.

 

[wildbird12]

Charge them both together to 100%/ 57v or above. At that point they should charge and discharge at essentially the same rate. The EW was likely at a lower SoC than it stated originally.

I think I have a similar issue. My 4 EW batteries charge/ discharge at different rates and end up at substantially different SOCs when charged up. The last time I charged the stack, they were at 100%, 79%, 74%, and 69% (Batteries 1-4). When discharging them last night they all came "together". At under 15% they were all very close until one went under 3% (I think that was about 48V), and the inverter shut everything off. I had previously top-balanced each battery individually to 56.8V and got the cells to stick within 5mV. I am currently recharging them, and they start to deviate again (currently 52, 53, 49, 45 (Batteries 1-4))... Do you think going over 57 and possibly to 58.4V with all of them might help? Sorry if this is considered common knowledge, I am still kind of a noob.

EDIT: The issue resolved itself when I drained the batteries it must have reset something, since they came back tighter, and this morning they are all sitting at 100%!!!

 

[JohnKl]

I would just let solar do the job assuming you'll get a full solar day at some pooint.

Came very close.

 

[JohnKl]

I think I have a similar issue. My 4 EW batteries charge/ discharge at different rates and end up at substantially different SOCs when charged up. The last time I charged the stack, they were at 100%, 79%, 74%, and 69% (Batteries 1-4). When discharging them last night they all came "together". At under 15% they were all very close until one went under 3% (I think that was about 48V), and the inverter shut everything off. I had previously top-balanced each battery individually to 56.8V and got the cells to stick within 5mV. I am currently recharging them, and they start to deviate again (currently 52, 53, 49, 45 (Batteries 1-4))... Do you think going over 57 and possibly to 58.4V with all of them might help? Sorry if this is considered common knowledge, I am still kind of a noob.

Hmmm,

Maybe this?

 

[stflush]

I thought I’d share a recent “buyer beware” experience regarding EW server rack batteries.
I had already purchased a pair of what I learned to be V2’s. When I decided to throw the dice on eBay for another 2, I thought I had read the description carefully and determined it was a pair of V2’s. When I opened the box I first saw the “bent ears”, then saw the white label with the MAC address missing. You got it! They shipped me V1’s. When I contacted about the damage and misleading description, they said the listing clearly stated Gen 1 without BT and WiFi. Since I had no screenshot of the original listing and couldn’t bring it up, I didn’t have much to go on.

If you are going to use eBay auctions for these batteries, take screenshots or get a response that they are indeed Gen 2’s.

Are you not able to see a version of the listing you purchased? It's a different EW item, but I bought an inverter/battery combo and when I view the current listing I see this at the top, right under a banner that says I bought the item, with the 'item you purchased' linked to a previous listing description:

The listing below has been updated by the seller, but you can see the item you purchased.

 

[wildbird12]

Are we back to blue?



I ordered two more batteries with @Will Prowse 's code from Amazon. They arrived today, and when I opened the box, I saw that they had a blue label and the Mac address not on the front but on the side.



I was afraid they had shipped me two older V1 batteries, but fortunately, these batteries have both Bluetooth and WiFi connectivity, and the Wi-Fi signal is improved over the batteries I received in early January, so hopefully, there is no need to open the case and perform the procedure from Page 63.

 

[DVD]

Are you not able to see a version of the listing you purchased? It's a different EW item, but I bought an inverter/battery combo and when I view the current listing I see this at the top, right under a banner that says I bought the item, with the 'item you purchased' linked to a previous listing description:

The listing below has been updated by the seller, but you can see the item you purchased.

It’s been a little unusual. At first I couldn’t see the listing description. Then after contacting EW there’s a link to the item description which supports their position, not mine. Hard to say. I’ll be contacting eBay directly next week unless EW agrees to my proposal - accept and pay for a return of damaged equipment.

 

[jorby]

Are we back to blue?

View attachment 278545

I ordered two more batteries with @Will Prowse 's code from Amazon. They arrived today, and when I opened the box, I saw that they had a blue label and the Mac address not on the front but on the side.

View attachment 278546

I was afraid they had shipped me two older V1 batteries, but fortunately, these batteries have both Bluetooth and WiFi connectivity, and the Wi-Fi signal is improved over the batteries I received in early January, so hopefully, there is no need to open the case and perform the procedure from Page 63.

I think the purple was a mistake on a batch of front panels, and having the sticker on the front was rather messy looking. Now they need to work on the orange terminals and purple caps........