Battery Questions

14.5 V is only going to be possible if the battery is completely flat; as the SoC rises the voltage will drop. A fully charged battery will only take 13.2 V as it reduces to trickle charge.

Claimed being the operative word. You will only get a measurable improvement if the old battery was severely compromised by dead or shorted cell. Otherwise any improvement will be negligible by replacing what is an old, but functioning, battery.

 

OK, your covered then.