Battery question

[ron in sc]

I have a 2013 and it is not driven very often. Battery in it is a Toyota True Start that installed 1.5 years ago. Probably have not driven vehicle for about 2 month, I really don't keep score.

So question is should battery go flat in that length of time?

On some of my other cars that are collector cars and are rarely driven I keep them charged up with one of those little maintenance chargers, all those vehicles have optima batteries.


Is it normal for battery in a street vehicle like my Toyota to have such little reservse capacity. I measure voltage at 8 volts. Recharged last night with a gel type charger and then disconnected charger. This morning I have 13.39 volts.

I have read other threads about battery not lasting based on time but not lack of use.

Also read that Sears Platinum was good way to go.

Suggestions appreciated.

 

[dorton]

Thats not out of the ordinary. During those 2 months, the battery is keeping all the memories stored(Power window auto up/down, sunroof initializations if applicable, smart key where applicable, engine control/transmission control
learned parameters etc...). It will be drawing a small amperage at all times.

 

[phillyd2]

Even though I always do it since the car / truck are usually in the garage, they say never leave your key fob inside the vehicle as it will also draw down the battery.