Quote:
Originally Posted by Forever Fly
For anyone that may read this you ABSOLUTELY have to register/code your new battery. Just because it works does not mean it's functioning properly. The ECU will continue to charge the new battery as if it were the old battery. Meaning if you have 720 and your battery died at say 400, you're ECU will continue to charge for the old 400 rate. It may not seem like a big deal but your overcharging the new battery. Just like a cell phone or laptop, overcharging leads to a MUCH MUCH shorter battery life. So where as your original battery may have lasted for 5+ years, the new will be lucky to last half of that without the register process. I hope this helps for anyone that is still wondering about this.
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I got a new battery installed and registered at the dealer 2 years ago.
However, if I park the car for a while (over a week), I use a Battery Tender Plus to charge/maintain the battery. Would this have any negative affects on the battery, and how the car chooses to charge it?