Re: Positive or negative ground ?

Posted by Ross On 2009/8/15 20:53:32

I am a bit skeptical of battery tenders--in my mind a product designed to fill a non-existant need.

My elaborate winterizing procedure consists of doing basic fluid checks and having a relatively full tank of gas. The car is driven about 7 miles to storage, backed in place and shut off. I then pat it affectionatly on the fender and close the garage door. If the car has a working clock, I twist off a battery cable before I go. Four or five months later I get in the car and crank it til it starts and drive home. These are cars are machines, not exotic aquarium fish.

Many of my customers use battery tenders and get nowhere near the 5-7 year battery life I get in my fleet of oldtimers. I believe these tenders are most necessary when storing modern cars with computers as they have continuous battery drain keeping the brain alive.