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I think battery is dying or dead

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Went on vacation for a week and a half. After returning, the CTT was dead (engine did not want to turn over), but waited a bit, turned everything else off and it did start. Drive for a while and it seemed OK. About week later (today), tried start again and this time nothing. Won't turn over. Appears as discharged battery.

My questions are:

1. Is the under seat batt, the main batt for starting (replacing)?

2. Where is other batt?

3. Would it be wiser to try trickle charge it before determine it is bad? Would need to buy charger first though.

4. What is a decent replacement batt, and from where, so I don't spend 300 bucks for it?

Overall, looking for advice on plan of action on this (to me appears replace it, butt wanted second opinion from you fine folks).


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Get a new battery at places like Costco (Interstate- an MTP-93 with 850 cca) or the Duralast battery at Autozone or even WalMart's battery. Don't use a battery trickle charger, only use a quality (Porsche or C-Tek) battery maintainer. If your CTT's battery is OEM and more than 3 or 4 years old, it might be time for replacement. If you regularly use a battery maintainer, you can greatly extend your battery's life, especially an OEM battery.

Edited by White987S
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Got it replaced yesterday. Got the Gold series Autozone battery in. Total cost OTD (after old batt turned in) was just around $150.

Replacement was easy (there is a write up on here for this, making it very simple).

After replaced, had some errors, used Durametric to clear.

Then, some PSM and ABS errors still persisted. Took car for a drive, which immediately cleared the remaining errors from cluster and all is well, back to normal - aka, perfectly fine car.


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Then, some PSM and ABS errors still persisted. Took car for a drive, which immediately cleared the remaining errors from cluster and all is well, back to normal - aka, perfectly fine car.


Good Job. The PSM/ABS warning its pretty common with a battery disconnect. They usually clear, like you have seen, within the first few blocks of driving the car.

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