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Discussion Starter · #1 ·
Hello Elcon experts,
I've a Elcon PFC 1500, which was supposed to be configured for 24 Cell LiFePo4. Here is what I see on the labels:
Elcon PFC 1500
Model: TCCH-72-16
Programed label shows:
Alg 519a 72V1K5W 24CELL V4=3.5V/cell, V5=3.7V/cell
What is Alg 519a mean?​
72V1K5W 24CELL can be interpreted as Pack of 24 sells with a Nominal pack voltage as 72V and charged at 1.5KW​
V4=3.5V/cell - What is V4?​
V5=3.7V/cell - What is V5? Is it a cutoff voltage or Max Voltage where charger does Constant Voltage?​
12/5/12 v2.7e Li lon - 12/5/12 -assuming date of manufacturing/programed and min voltage of 2.7V or version 2.7e. I'm confused about the Li Ion
115V 1200W, 230V 1500W - Charge rating of 1.2KW @ 115V and 1.5KW @230V
This charger is Ah User programable and I can not change number of cells.

121763


Here are the details of my Batteries:
These are Winston LiFePo4. 24 of them make a pack. These are supposed to be 160Ah batteries. I bought these used and they are supposed to be programed to work with the pack. Currently 2 of batteries have gone bad and current pack size is 22.
Right now I'm charging the batteries up to 78V, which is 3.4545 v per cell. So I'm trying to figure out if I can change the User programmable parameters. Based on the label above it is programed to #4 for 80Ah, which is 50%DoD. I think Ah should be set to #6, which is 115.2Ah, for a 70%. I don't know how the software is written, how does the charger know when to stop charging?

Here is the video of the starting red light blinking. It is R_R_R_R_G. Could you please confirm this?

Can you please let me know:
What is I3 and I4? when will those kick in?
How does the charger know when to stop charging?
Is there any way I can stop the charger when pack voltage reaches 78V?

I'm also trying to revive 2 bad cels and planning to use it part of the pack. I know these are a bunch of questions, but appreciate any feedback from the experts.
 

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Did you read thru the threads about troubleshooting and the firmware for these chargers, there is an index in Coulomb's post with link to how to read and program these. coulomb, pdove and i reverse engineered these chargers, and those two have experience in reprogramming, i should probably know how to do it too but am a bit rusty. Do you have an arduino board and want to do this yourself?
 

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Discussion Starter · #3 ·
Did you read thru the threads about troubleshooting and the firmware for these chargers, there is an index in Coulomb's post with link to how to read and program these. coulomb, pdove and i reverse engineered these chargers, and those two have experience in reprogramming, i should probably know how to do it too but am a bit rusty. Do you have an arduino board and want to do this yourself?
I've not gone through the entire thread. Let me read up the thread and figure it out. If you have quick reference to the page/post, that would save me lot of time. I do not have Arduino board, but could try to do it myself.
 

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Discussion Starter · #4 ·
I read through the thread from Coulomb.I thought it is bit time consuming to assemble the parts and go through the learning process. If @Coulomb or @pdove can help me with reprogramming, that would be awesome.
 

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Discussion Starter · #5 ·
Kenny, would you be able to help? Both prove and coulomb didn't respond.

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