Battery replacement.

Myself i use an Ultra Capacitor to start the semi truck. However, i still use 3 batteries, when changing a bad battery its replace 3 at a time, not just the single bad unit. The battery cable is replaced about 48 mos.

 

How much time are you getting out of the 3 batteries using the cap to start...? I've been looking into those...

 

mine get replaced every 3 years. never had them go out sooner, but had them go out 3 years & 3 days. replace all 4 at once every time

 

The Ultra Capacitor was installed in Oct. 2014, the batteries are still in the truck. (when replacing a battery, i do not cherry pick, i will replace all batteries.)

 

Any update on how long batteries lasted?

 

Early in my career, when money was tight, I drove regional Midwest. Went by the house every day.
Back then I would only change the bad battery. Load testing all the batteries.

Now I run 7-10 days out, and money isn't an issue, when I have a battery go bad I replace all of them.

 

Replace them all. And don't even bother with " refurbished " batteries.. I learned that lesson the hard way.

 

If it is a group of batteries I replace all of them. If it is the one showing signs of pending death, it's replaced. Batteries are cheap, stranding and tows etc are not.

Most people will not be bothered to spend money they have today for something that is not really dead yet tomorrow.