smith2010Q7

A lot of question has been ask what kind of power supply do you used when replacing your battery. It is recommend to used one so you will not lose any of your settings plus it will keep all the crazy check engine light off on all the battery faults once you disconnect your battery.

I used a lot is the CTEK US 7002, it has a power supply once the battery is not hook up, plus a charging for are AGM batteries.

You can also hook it up and leave it so you can keep your battery fully charge.

I have seen and used a lot of chargers, but I found this once great for are Audis, Plus all the high cars in storage.

I know it is the time of the year when it is cold are AGM batteries start to fail.

Hope this helps.