I noticed when frequent rain began in the fall that LeafSpy showed the DC/DC converter maintains 14.4 V for as long as the wipers are on, and that my attempts to recharge the 12 V battery manually with an external charger every-other weekend resulted in the charge rate immediately dropping to near zero, indicating (if I'm not mistaken) that the battery was already fully charged.
So, great! When we had an unusually long period of no rain in December, I made a point of running the wipers on the lowest intermittent setting on about a third of my trips, just to keep the 12 V battery topped up. Now I'm just wondering: if it rains all the time, is there any risk of overcharging the 12 V battery by keeping the voltage high all the time?
So, great! When we had an unusually long period of no rain in December, I made a point of running the wipers on the lowest intermittent setting on about a third of my trips, just to keep the 12 V battery topped up. Now I'm just wondering: if it rains all the time, is there any risk of overcharging the 12 V battery by keeping the voltage high all the time?