Well with a big sigh, it's time to get another battery. This is my setup, changed to an automotive alternator, have an Odessey 680 battery for last 5years. Always had it on standby charger but it won't hold a charge. Was thinking ofputting an optima battery in side fairing. Now the big question, I can get a battery with a higher cca but how high of a cca can I go,.......odessey 170 cca optima batteries go as high as 700cca ????? Any thoughts???