Possible wrong setting in Classic

[asdex]

I think I may have misunderstood and put a wrong setting in my Classic.
In the attached picture I have changed the 25 deg to 20 deg and the percentage to 100% due to the battery instructions below:

Capacity correction for Temperature Variations (C20) at 20 deg C is 100%.

Will this be correct or not?
Thanks,

[Vic]

I think I may have misunderstood and put a wrong setting in my Classic.
In the attached picture I have changed the 25 deg to 20 deg and the percentage to 100% due to the battery instructions below:

Capacity correction for Temperature Variations (C20) at 20 deg C is 100%.
Will this be correct or not?
Thanks,

Hi asdex,

The Temperatue Compensation Temperature for your battery needs to be specified by the battery manufacturer.  Customarily,  this is 25 (degrees) C.  Some batteries spec 27 C.

And that percentage,  also would come from the manufacturer of the battery.

If you know that the battery manufacturer's Reference temperature is 20 C,   then use it.  BUT,  Capacity is a huge numbers game with battery manufacturers ...  always looking for ways to make their batteries look like they have more C(apacity).  Specing C at 20 degrees C,  will slightly reduce the battery's Capacity,  so  this seems like an unlikely temperature for the Reference,  IMO.

Opinions,  Vic

[asdex]

I have attached a screen print of the battery specifications concerning the temperature.
Cheers,

[Vic]

Hi asdex,

Thanks for the battery manufacturer's data.
I stand corrected.  Perhaps they feel that the batteries will be in a temperature-controlled space.

That Temp Compensation data shows some non-linearity,  so a fixed  Compensation percentage will not work so well.   Guess that you can use a compensation percentage that best-represents the operating temperature range that the batteries are most likely to experience ...

Good Luck,   Vic

[asdex]

Thanks, so you think my 20 deg and 100% in that screen is reasonable?
Cheers,

[Vic]

asdex,

20 degrees C should be fine.

If you set 100% for the other setting on that screen,  for every one degree change in battery temperature,  there would be 100 percent change in the calculated battery Capacity.   This is,  of course,  far too much compensation,  so,  NO  that part is not at all good.

The manufacturer notes that the change in Capacity between 20 C,  and the next lower temperature shown on that image (cannot see it just now)  would be 0.75%,  IIRC,  but this is not the correct value,  for the range from 20 C to the next higher temperature in that image.   SO,  you will need to choose a small value that works best for you,  given the range of battery temperatures that the battery will most likely experience.

IMO,   Vic