ok so I recently changed my batt and I went from a non AGM batter with a CCA@0' f=900 to a AGM batt with a CCA@0'f=850 and when I try using inpa/ista to do the registraition I get a communication error with the dme/dde, after learning that batt info was stored in the CAS2 module I decided to check mine and right now It Is set to 110ah-110 ampere-hours non AGM batt. The selections it offers me are 70ah__agm-70 ampere_hours(agm), 90ah_agm, 60ah_agm, 80ah_agm, heres the problem I have no idea how to figure out the ampere-hours on the battery however I do know that before I do too much driving I want to at least change this to see if it helps with any of the issues I am having so im hoping that someone knows how to do this or the best option I should use so I can load it into car asap.

 

Sometimes it says on the battery. If it doesn't I would just google the battery I'm sure you can find the spec easily.

 

that's what ithought but so far no luck, just a bunch of formulas to figure it out only I don't know the draw rate of the car so how can I figure out how many amp hours the batt can supply if I don't know how much is being pulled from it?

 

What's the exact battery that you put in it?

 

interstate agm cca850 an I took out a interstate non-agm cca900 batt

 

You're supposed to put the battery size/code too.

Just put 90 Ah AGM. That size battery should put out 90 Ah or more.

 

I tried that an now when I hook up ncs I get an error, its in german but im almost positive its a communication error too, im going to try uninstalling all the software an then reinstalling it to see if maybe somehow a setting got changed causing the issue cuz last time I used all 3 programs they worked 100% fine