Thanks Bob

. The problem with voltmeters (and that Kuryakyn looks good) is that a sulphated battery that has diminished capacity can still show a good voltage while the bike is running (and charging). That said, if you pay attention to the cranking voltage a sulphated battery will drop considerably more than than a good battery.
The C-Tek accessory connectors/indicators can be used independently of the charger.
This combo is only 16 bucks with standard SAE connectors ...
