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Old 03-07-2011, 12:11 AM
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Default Battery Replacement

You can loose fuel control and transmission shift control adaptative stragaties of your vehicles OBD 2 memory. This can be re learned however it may require a variation of driving over 10- 50 miles. In other words you vehicle learns your driving style and a battery disconnect makes it go blank!

You can have theft and radio security problems with a battery disconnect.

The Gentleman was correct on a keep alive memor adapter however many cars do not connect the cars computer to the power adapter when the key is cycled off. This is for battery drain. So you plug it in and loose everything anyway.

There has also been reports of air-bag deployments from using battery back ups. This has to do with voltage spikes.

Some techs will keep the computer memories alive by installing a jump pack in parallel while the dead battery is being replaced.

I recommend with todays rolling computers! A trained technician install your battery with the correct replacement Cold Cranking Amps and OE replace size.