If your battery is healthy it should read around 12.5 v with ignition off and around 13.5 on tickover.
If there's not a significant increase from ignition off to tickover ( after a full battery charge ) you have a problem with your alternator or regulator/rectifier.
If your battery is healthy it should read around 12.5 v with ignition off and around 13.5 on tickover.
If there's not a significant increase from ignition off to tickover ( after a full battery charge ) you have a problem with your alternator or regulator/rectifier.