Hi, I have also been suffering from the dreaded CHR battery issue. I hope you do not mind me asking a few questions for some advice?
1. If I buy the Carista dongle, is it easy to change the Key Search setting to a lower setting than 5 days? Is the lowest setting 2 days or could I change it to 1 day perhaps?
2. My battery needs replaced as even once recharged and left overnight with no cables attached, it goes from 12.69v to 12.4v. I see the Bosch S4 002 52aH is recommended on this thread. Is it safe to assume the CHR can charge a higher capacity battery? I only ask as one review of this battery said not all cars can provide the additional voltage it needs, but not seen that mentioned anywhere else.
3. Uk car so is it possible to disable the car alarm? Just trying to work out if the drain is caused by alarm or key search?
Any replies would be greatly appreciated.