A Forum run by Enthusiasts of MidNite Solar

Charge Controllers and Clippers => The "Classic" charge controller => Topic started by: bigal on October 12, 2016, 04:10:57 PM

Title: Now using a 46v battery instead of 48v
Post by: bigal on October 12, 2016, 04:10:57 PM
Have a bad cell which I jumpered.   23 cells at 2V  instead of 24   Deka flooded lead acid forklift battery

My inverter can handle the slightly low voltage fine

Question: Should I reprogram the classics to  charge 2 volts lower? 
I expect to have a new cell in a week or two and be back to normal.

Title: Re: Now using a 46v battery instead of 48v
Post by: Westbranch on October 12, 2016, 04:16:24 PM
IIRC the charge rate is stated as X volts per (2v) Cell....
Title: Re: Now using a 46v battery instead of 48v
Post by: CDN-VT on October 13, 2016, 12:58:12 AM
Quote from: bigal on October 12, 2016, 04:10:57 PM
Have a bad cell which I jumpered.   23 cells at 2V  instead of 24   Deka flooded lead acid forklift battery

My inverter can handle the slightly low voltage fine

Question: Should I reprogram the classics to  charge 2 volts lower? 
I expect to have a new cell in a week or two and be back to normal.

Well I don't see any problem with adjusting the classic , but what about the mag inverters cutting out on LVD ?

VT
Title: Re: Now using a 46v battery instead of 48v
Post by: bigal on October 13, 2016, 12:46:28 PM
Last nite the Magnum held up perfectly all nite and was down to 80% battery in the AM.   So the jumpered cell fixed the drop outs we had been experiencing.

The LVCO is programmable- no sweat there....
Title: Re: Now using a 46v battery instead of 48v
Post by: sigp2101 on October 21, 2016, 11:38:56 AM
Quote from: bigal on October 12, 2016, 04:10:57 PM
Have a bad cell which I jumpered.   23 cells at 2V  instead of 24   Deka flooded lead acid forklift battery

My inverter can handle the slightly low voltage fine

Question: Should I reprogram the classics to  charge 2 volts lower? 
I expect to have a new cell in a week or two and be back to normal.

How do you jump the cell? It would be useful to know. Never mind, I see you battery is forklift B.