[pdove]

I got 8 2015 LG chem packs from a Chrysler Pacifica hybrid. 20.8 kwh. 2.6 kw pack.4.2v cells. 45ah cell.

any chance you could reprogram my Zivan Ng3? No worries if you only like elcons, I get that.

Sent from my SM-G930V using Tapatalk

I have never used a Zivan NG3 but I found this on the internet! Seems easy enough.

https://www.google.com/url?sa=t&rct...justment.pdf&usg=AOvVaw2LlXLtPTTIXDGMoE3nfqta

It is hard to tell what you have from your description... maybe 12 or 13 cells in series

 

[leman2112]

Nice. Thanks man. I got 8 packs. It is 16 cells in a pack. 16x8=128 cells total. So I do not need to reprogram this charger to get a specific charging algorithm. I can just adjust the parameters with the pot adjusters and plug it all together and go shred? Or am I missing something.

My car is a 144v system. Kinda just want to run 2s4p right now to keep it simple. If I plan on running two lg chem packs in series 57v x 2= 114v then 4 in parallel. (This is based on the voltage they are charged to when bought. These may charge to 67.2v however I am not positive yet still researching them. May have changed the cell chemistry from 2015 to 2017, but so far I have not found any evidence of a change 67.2vx 2 =134.2v. Still planning on reconfiguring my packs with a spot welder someday to get them to 144v in series but would like to drive it a bit on the road this summer.

If I set it up 2s4p for the meantime, Can I charge my batteries with my zivan ng3 with the maximum voltage pot set at 114v for safety and it will shut off keeping my batteries from over charging? I plan on having a bms hooked up when I try this. Not sure witch one I am going to buy. Probably should just get the spot welder first and get to the 144v nominal setting the motor is looking for.

 

[pdove]

Nice. Thanks man. I got 8 packs. It is 16 cells in a pack. 16x8=128 cells total. So I do not need to reprogram this charger to get a specific charging algorithm. I can just adjust the parameters with the pot adjusters and plug it all together and go shred? Or am I missing something.

My car is a 144v system. Kinda just want to run 2s4p right now to keep it simple. If I plan on running two lg chem packs in series 57v x 2= 114v then 4 in parallel. (This is based on the voltage they are charged to when bought. These may charge to 67.2v however I am not positive yet still researching them. May have changed the cell chemistry from 2015 to 2017, but so far I have not found any evidence of a change 67.2vx 2 =134.2v. Still planning on reconfiguring my packs with a spot welder someday to get them to 144v in series but would like to drive it a bit on the road this summer.

If I set it up 2s4p for the meantime, Can I charge my batteries with my zivan ng3 with the maximum voltage pot set at 114v for safety and it will shut off keeping my batteries from over charging? I plan on having a bms hooked up when I try this. Not sure witch one I am going to buy. Probably should just get the spot welder first and get to the 144v nominal setting the motor is looking for.

If I were you I would reconfigure the way you want them. trying to go back later to make changes to a working vehicle is a pain and you will probably never get back to it. However it also means that you won't be able to use all the cells so you overall capacity will be lower 2s3p with 21 cells left over. Higher voltage will just give you more power and top end speed but more cells gives you longer range.

As far as the Zivan that was the same impression I got just adjust the pot.

 

[Mountain Goat EV]

@pdove and others,

I have a PFC2500 that was for flooded batteries and I am trying to use it on. 32s li-ion battery made from chevy volt cells. I don't understand the charge curve chart attached. Can I use the charger as is and just rely on the BMS to stop at 134.4 volts or does this charger need reprogrammed?

Any input is helpful.

Edit: I also have a zivan NG3 and will look into what you guys mentioned about adjusting the pot.

 

[pdove]

@pdove and others,

I have a PFC2500 that was for flooded batteries and I am trying to use it on. 32s li-ion battery made from chevy volt cells. I don't understand the charge curve chart attached. Can I use the charger as is and just rely on the BMS to stop at 134.4 volts or does this charger need reprogrammed?
View attachment 122539
Any input is helpful.

Edit: I also have a zivan NG3 and will look into what you guys mentioned about adjusting the pot.

The software has variables that can be changed with the external push button. Usually they will contain several AH and number of cell combinations. This one looks a little different showing Ah and current endpoint combinations. Looks like they are all 72 cells. Lead acid cells are nominal 2v and max 2.1v. so 72 cells is 151.2 volts. Yes you should be able to control the enable function of the charger to turn it on and off if the voltage is enough for your application. here is a document that explains your algorithm.

 

[pdove]

The software has variables that can be changed with the external push button. Usually they will contain several AH and number of cell combinations. This one looks a little different showing Ah and current endpoint combinations. Looks like they are all 72 cells. Lead acid cells are nominal 2v and max 2.1v. so 72 cells is 151.2 volts. Yes you should be able to control the enable function of the charger to turn it on and off if the voltage is enough for your application. here is a document that explains your algorithm.

Re-programming is easy so you might want to consider loading a CAN image into the charger then you just feed it voltage and current once a second to turn it one when the message stops it turns off.

 

[Mountain Goat EV]

The software has variables that can be changed with the external push button. Usually they will contain several AH and number of cell combinations. This one looks a little different showing Ah and current endpoint combinations. Looks like they are all 72 cells. Lead acid cells are nominal 2v and max 2.1v. so 72 cells is 151.2 volts. Yes you should be able to control the enable function of the charger to turn it on and off if the voltage is enough for your application. here is a document that explains your algorithm.

Thanks for the quick response! I am thinking I will use the zivan because of the ease of changing settings but I thought it is worth asking how would I control the enable on the elcon? Has that been discussed somewhere already? And so with my charge curve selection, all I am changing would be current output correct?

 

[pdove]

Thanks for the quick response! I am thinking I will use the zivan because of the ease of changing settings but I thought it is worth asking how would I control the enable on the elcon? Has that been discussed somewhere already? And so with my charge curve selection, all I am changing would be current output correct?

I am not following. So the elcon TCCH chargers have a complicated charge program as seen in the graph I sent where it charges in stages. In your case it charges at a constant current until V4 (2.44V per cell or 175.68v) then switches to constant voltage untill the current equals I3 (Ah/34.4) curve. So if you are set for 127Ah cells then I3 is 3.74A. This is where it cuts off by itself. The charger is enabled by connecting pin 1 of the round connector on the front to pin 3. So, if your bms can control a swith you can have it monitor the voltage and open the switch to disconnect pin one from pin three thus turning the charger off.