Anyone know if its ok to leave the charger on long after its charged? I know my R30 manual states not to do this but didn't see anything in the manual for the 52A that states not to do this.
Keep an eye on the charging icon. I think you'll see it turns off charging and won't start charging until voltage drops a predetermined amount.. Lithium chargers have to be safe/smart, too much energy to fool with.
That said, I'm leaving mine in the desktop charging stand. Just like I do with the IC-R30, ID-51s, and IC-705.
I searched the IC-R30 manual it says don't leave battery fully charged (or fully discharged) for extended periods, that's different than leaving it in the charger from day to day or even weekend to weekend. Of course, extended periods isn't defined in the manual. But google says six months, bring it down to 50% or up to 50%.