Settings for Battery Recharger

I vote for profile 3.

 

The Optima 1200 can charge at 12 amps. Your battery doesn't like charging above 4 amps. If your battery is discharged it will see a higher charging current than the manufacturer's rating.

 

It is fine as a battery maintainer/desulfator and to charge the battery when it is not too discharged. I would use a lower capacity charger to get the battery up to about 80%. The smaller 400 model would be perfect for our low charging rate battery.

JeffD

 

If I had to choose #4. Mode designed for smaller battery...

moto g(7) power ?

 

It's an automatic charger, so it's not going to push full power for the full duration of the charge cycle. It's going to taper off the amps as it approaches 85 - 90% charge (depending on their algorithm) If it were me, I'd put it on #3 for a couple of hours, then switch it to #4. But you can't go wrong with selecting #4, it just might take a little longer.

 

Your time likely would be better spent getting a new battery.
At 6+ years old, it is highly likely that it won't last much longer no matter what you do to it.

What "profile" you choose probably won't make a lick of practical difference.
But I vote for 4.