Just got the app and ODBII a few days ago...
I have a question about gids vs. AH capacity. First, some background. Have a 2012, Got it 1/30/12. About 22k miles. I'm in CT, so high temps are not much of an issue here. Never QC'd. I'm using the latest version of the app v.26.
From the battery app - AH=60.44(91.22%), Health = 90.35%. Yesterday I charged to 80% and had a 213 gid reading.
If I understand the readings from the app properly, I'm down almost 9% capacity. However, if I compare to gids, a new batter should have about 281 gids when charged to 100% and about 225 when charged to 80%. When I compare my 80% charge gid (213) to the expected gid for for a new battery charged to 80% (225), then per gids I'm down about 5%.
Am I understanding this correctly? If so, why the discrepancy between AH cap and gids? Also, which is more accurate?
Thanks in advance for your help! This forum is great.