miataroadster
Senior Member
I am about to install a new alternator and solar charger for my portable power station when I noticed that the chassis battery is a little bit wet on top. I did some voltage checking....
14.19v........at rest, solar power connected
13.94v........after 30 mins solar power
disconnected
With solar off, the voltage has not changed when connected to shore power with converter off, still 13.94v.
With solar on or off, it went to up to 14.46v when connected to shorepower with converter on.
14.63v while engine on, solar on/off. This one is normal, yeah?
1. could it be that my solar charging system is overcharging the engine battery to get constant reading 14.19v during day time? The controller will only stop/trickle when the house batteries are charged.
Is there a way to disconnect the chassis battery from coach battery via breaker/s while solar charging is happening?(see attached pic of breaker nextvto chassis battery)
2. Maybe I'm just over thinking this. Since while driving, the car alternator will keep the voltage at 14.6 anyway. Or will it diminish after some driving time? I couldn't tell, it was only on idle for 15-20 mins.
3. Maybe the tiny spill was caused by me driving the mh up the curb to access my front yard parking space. Curb is about 7" high, and parking at an incline. Battery water looks OK, but I better check again when level.
14.19v........at rest, solar power connected
13.94v........after 30 mins solar power
disconnected
With solar off, the voltage has not changed when connected to shore power with converter off, still 13.94v.
With solar on or off, it went to up to 14.46v when connected to shorepower with converter on.
14.63v while engine on, solar on/off. This one is normal, yeah?
1. could it be that my solar charging system is overcharging the engine battery to get constant reading 14.19v during day time? The controller will only stop/trickle when the house batteries are charged.
Is there a way to disconnect the chassis battery from coach battery via breaker/s while solar charging is happening?(see attached pic of breaker nextvto chassis battery)
2. Maybe I'm just over thinking this. Since while driving, the car alternator will keep the voltage at 14.6 anyway. Or will it diminish after some driving time? I couldn't tell, it was only on idle for 15-20 mins.
3. Maybe the tiny spill was caused by me driving the mh up the curb to access my front yard parking space. Curb is about 7" high, and parking at an incline. Battery water looks OK, but I better check again when level.