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Update cables for EG4 LL v2 and EG4 LL-S batteries

J

johnbrutovsky@hotmail.

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So I'm confused about what cables to use to update my batteries. I have EG4 LL batteries, Both version 2 and version 4 ( -S ). I have the

EG4 Firmware Cable for EG4 EX Inverters (6500EX & 6000EX), and the picture looks identical to the​

EG4 RS232 Firmware Update Cable - LL, but when I tried to use the cable I have on hand it would not work. Does anyone know if the two cables are the same or different. The EG4 RS232 Firmware Update Cable - LL is cheap enough that I would just order one from Signature Solar, but they are on back order. Does anyone have a alternative to getting the RS232 on my batteries reflashed for the multipack software?​

 
Hold an ethernet/cat5 cable RJ45 connector with the pins facing up and the latch facing away from you. The RJ45 pins are a pictured below depending on the color and order of the wires. T-568B is the more common one.

Just review these threads is you want to make your own cable:

M

Post in thread 'Help with Pace BMS Comms'

First, do you have the pinout of each RS485 port.
The EG4 Lifepower4 batteries for example use pins 1&2 as an RS485 bus as well as pins 7&8 as a second RS485 bus in the same RJ45 jack.
I purchased a RS485 to USB Converter:
RS485-USB-Converter

Using a spare cat5 cable, just cut off the RJ45 connector on one end, remove about 3 inches of the outer insulation then you can connect the correct pair of wires to the RS485 to USB Converter and plug the RJ45 connector on the other end to the correct port on the battery.
Look at the RJ45 connector on the cable (With my tired old eye I use a...
  • Like

M

Post in thread 'query on SRNE reset times.'

I use a spare ethernet patch cable, cut the RJ45 connector off one end, strip two to three inches of the outer insulation and select the pair of wires I need depending on which pins of the Inverter or BMS I need to use.

For a normal cable pins 1 & 2 are the orange/white and orange. Pins 7 & 8 are the brown/white and brown. I even at times use several of the wire pairs in the same cable.

Holding the RJ45 connector with the pins up and facing you (the latch/lock is facing away from you) pin 1 will be on the left and pin 8 on the right.

I use these as you can never tell which two pins in a...
  • Like


ethcable568b.gif
 
TM48 said:
Here
Click to expand...
Actually that did help. Thanks. Even though I've seen that same paper several times over the weekend, this last time finally clicked in how to read the pinouts. I found that the standard RS232 adapter has the communication wires on pins 3 & 6., I'm going to make an adapter that moves those pins to pins 4 & 5 and give it another try. Now I just need to find the correct software.
 
johnbrutovsky@hotmail. said:
I've made my own programming cable. I'm not going to try it until tomorrow though. I let you know how it goes if I can find the correct software and then reflash the firmware.
Click to expand...
EG4 has all the software and firmware for their batteries on their website. Just make sure you select the correct battery and version.
Once you have the software installed then ensure you have communication with the battery and can read the battery.

EG4 for the most part uses two different softwares: "EG4 BMS Tools" for most all but the EG4 Lifepower4 V1 which require their "BMS Test" software
 
marionw said:
EG4 has all the software and firmware for their batteries on their website. Just make sure you select the correct battery and version.
Once you have the software installed then ensure you have communication with the battery and can read the battery.

EG4 for the most part uses two different softwares: "EG4 BMS Tools" for most all but the EG4 Lifepower4 V1 which require their "BMS Test" software
Click to expand...
So do I use the EG4 LL-S two part firmware update on my EG4 LL-S batteries, and the multipack software on the rest of the older batteries?
 
johnbrutovsky@hotmail. said:
So do I use the EG4 LL-S two part firmware update on my EG4 LL-S batteries, and the multipack software on the rest of the older batteries?
Click to expand...
If you are only connecting the LL-S and the LL-V2 together you need a Cat5e cable or higher with pins 7 & 8 between each battery.

View attachment 287302

When using LL-V1 and LifePower4 batteries in communications with the LL-S/LL-V2, you need to install the multipack firmware on all the batteries.
(You will install the LL-V2 firmware to the LL-S batteries)
View attachment 287304

For the multipack firmware you would need to use an RS485 cable, which are pins 1 & 2.

1742831852205.png
 
Ok, let me see if I can make this post short. Bottom line, I just got my stack of six EG4 LL batteries working. Not sure if this is the recommended way to do it, but here is what has worked for me. First off, my homemade RS232 cable didn't work. It doesn't communicate with the "battery-comm" ports. Setting that aside, here is what worked for me in my situation. Originally, I had 3 v1 batteries at the bottom of my stack. I had one v2 battery above them that was tripping the breaker every time I plugged the v1 into it. I solved that problem two years ago by making a cat5 cable to go from the v1 to the v2 battery that was missing pin 6. I have a LL-S above that that was plug and play to the v2 when I bought it. So that summarizes my original stack of 5 batteries. I was able to get the new EG4 LL-S battery that I bought last week to work by putting it at the top of the stack, and DOWNGRADING the firmware to the LL v2 multipack level. That was the missing piece of information that was driving me crazy the whole weekend. Instead of needing to upgrade all of the older batteries, I just needed to DOWNGRADE my newest battery to the same firmware version that the year old LL-S battery was using the multipack firmware provided on the EG4 LL-S support page. So to summarize this, if you already have a stack of older batteries that function, and you are added the newest version of the LL-S, you need to DOWNGRADE the new one to match the already working stack. I suppose that I could go and install the same software on my v2, and v1, batteries, but since they all seem to be working now, I don't see the need. ( not to mention that the v1 firmware folder has two different files in it, and I'm not sure if I pick one over the other, or if I need to do both )
 
marionw said:
Hold an ethernet/cat5 cable RJ45 connector with the pins facing up and the latch facing away from you. The RJ45 pins are a pictured below depending on the color and order of the wires. T-568B is the more common one.

Just review these threads is you want to make your own cable:

M

Post in thread 'Help with Pace BMS Comms'

First, do you have the pinout of each RS485 port.
The EG4 Lifepower4 batteries for example use pins 1&2 as an RS485 bus as well as pins 7&8 as a second RS485 bus in the same RJ45 jack.
I purchased a RS485 to USB Converter:
RS485-USB-Converter

Using a spare cat5 cable, just cut off the RJ45 connector on one end, remove about 3 inches of the outer insulation then you can connect the correct pair of wires to the RS485 to USB Converter and plug the RJ45 connector on the other end to the correct port on the battery.
Look at the RJ45 connector on the cable (With my tired old eye I use a...
  • Like

M

Post in thread 'query on SRNE reset times.'

I use a spare ethernet patch cable, cut the RJ45 connector off one end, strip two to three inches of the outer insulation and select the pair of wires I need depending on which pins of the Inverter or BMS I need to use.

For a normal cable pins 1 & 2 are the orange/white and orange. Pins 7 & 8 are the brown/white and brown. I even at times use several of the wire pairs in the same cable.

Holding the RJ45 connector with the pins up and facing you (the latch/lock is facing away from you) pin 1 will be on the left and pin 8 on the right.

I use these as you can never tell which two pins in a...
  • Like


View attachment 287138
Click to expand...
How are these:
Powerpro BMS Update- RS232 RJ45 Pins (4-Rx, 5-Tx)
to be attached to the USB TO RS485 Converter?

Thanks
Bill
 
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