Load Testing a pair of T-105's
Can anyone provide numbers that you have recorded so I can compare to see if my pair are in the ballpark? Im getting about 10 hrs @ 10 amps to 50 percent level... I just replaced a pair that after...
Forum Discussion
I am one of those that really don't need to know the absolute state of my battery charge state status. I only need to know that I can camp for up to 10-12 days using my Battery bank starting out with a full Charge state set of batteries. Then I will normally draw around 22-24AMPS DC current from 6PM to 11PM each evening when camping off grid in addition to having a 24/7 parasitic drain of 1-2 AMPS all the time.
This will drop down my DC VOLTAGE to around 12.0VDC around 8AM the next morning when I am usually allowed to run my generator to operate my on-board PD9260C 60AMP Converter/charge for around three hours of generator run time. This brings my battery bank back to somewhere around the 90% charge state I guess... All I care about is I do this routine over and over for long camping trips and my batteries will maintain the roughly same performance times. If I don't get them somewhere around 90% charge state to start with then the DC VOLTMETERS drops down to the 12.0VDC reading quicker then it previously did... It gets below the 12.0VDC around 10PM i quit using the batteries and wait until 8AM the next morning to re-charge the batteries.
After doing the so called 50% to 90% charge state cycles for 10-12 days in a roll I then start loosing my battery performance level. I have to stop the 50% to 90% cycle and recharge my battery back for about 12 hours then before I can start doing all of this all over again.
I really don't give a hoot what the absolute charge states are as this works great for me. Been doing it since around 2009 and just last season I was not able to re-coup my battery bank telling I must be getting close to the end of life for my batteries...
Most of my camping off-grid trips is three days or so but I have done a few full week camping trips with no problems...
I call this NOT BAD for these three 12VDC 85AH GP24 Interstate Batteries I call my 255AH battery bank I installed on my OFF-ROAD POPUP trailer in late 2008...
Roy's Image
Works good for me...
Roy Ken
This will drop down my DC VOLTAGE to around 12.0VDC around 8AM the next morning when I am usually allowed to run my generator to operate my on-board PD9260C 60AMP Converter/charge for around three hours of generator run time. This brings my battery bank back to somewhere around the 90% charge state I guess... All I care about is I do this routine over and over for long camping trips and my batteries will maintain the roughly same performance times. If I don't get them somewhere around 90% charge state to start with then the DC VOLTMETERS drops down to the 12.0VDC reading quicker then it previously did... It gets below the 12.0VDC around 10PM i quit using the batteries and wait until 8AM the next morning to re-charge the batteries.
After doing the so called 50% to 90% charge state cycles for 10-12 days in a roll I then start loosing my battery performance level. I have to stop the 50% to 90% cycle and recharge my battery back for about 12 hours then before I can start doing all of this all over again.
I really don't give a hoot what the absolute charge states are as this works great for me. Been doing it since around 2009 and just last season I was not able to re-coup my battery bank telling I must be getting close to the end of life for my batteries...
Most of my camping off-grid trips is three days or so but I have done a few full week camping trips with no problems...
I call this NOT BAD for these three 12VDC 85AH GP24 Interstate Batteries I call my 255AH battery bank I installed on my OFF-ROAD POPUP trailer in late 2008...
Roy's Image
Works good for me...
Roy Ken
