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Old 09-21-2013, 09:53 PM   #1
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In dash radio

Dumb question...If I am parked and running shore power, will leaving my in-dash radio on run down my battery or is it ok to leave on?
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Old 09-21-2013, 10:02 PM   #2
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I'm thinking shore power is taking care of everything.
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Old 09-21-2013, 10:16 PM   #3
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Your dash radio is 12 volt, so as long as you have an onboard charger, as in inverter/charger, you'll be fine listening to it while on shore power.
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Old 09-21-2013, 10:39 PM   #4
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Your dash radio is 12 volt, so as long as you have an onboard charger, as in inverter/charger, you'll be fine listening to it while on shore power.

most inverter chargers do not seem to charge the chassis batteries. On my coach I have an automatic charger hooked up to the chassis batteries to keep them charged when on shore power. If you do not have a separate battery charger for them you will be having problems starting your engine if you listen to the radio too long.
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Old 09-21-2013, 10:44 PM   #5
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most inverter chargers do not seem to charge the chassis batteries. On my coach I have an automatic charger hooked up to the chassis batteries to keep them charged when on shore power. If you do not have a separate battery charger for them you will be having problems starting your engine if you listen to the radio too long.
You're correct...my bad. I have a separate trickle charger that charges my chassis batteries when on shore power.
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Old 09-21-2013, 10:45 PM   #6
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Everything depends on how you coach is set up. You could try the radio with the battery disconnect switch turned off to see if it gets it's power from the coach or chassis batteries. If it works with the key off ; it probably gets it's power from the coach battery.
But you should check your coach , to see if , when on shore power the coach batteries ( engine start ) are being charged, many owners have to add a battery tender to make sure they don't go dead.
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Old 09-21-2013, 10:51 PM   #7
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Dumb question...If I am parked and running shore power, will leaving my in-dash radio on run down my battery or is it ok to leave on?
It's according to how sophisticated your RV electrical system is. On mine, I have a dash switch that changes radio source from chassis (while driving) or power from house batteries when parked. When I'm on shore power, both battery systems are charging, also while driving. In addition, if chassis batteries get low, battery boost switch connects both battery groups together. Likewise, if house batteries get low, boost switch allows chassis batteries to start generator for charging. A voltmeter check of voltages of both battery groups when on shore power will show if both systems get charged by your converter/charger. Just see if voltage is greater than when not plugged in. Also you can easily check to see if house batteries get charged from engine alternator by doing same test with voltage meter with engine running.
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Old 10-01-2013, 04:22 PM   #8
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Thanks to all who responded......I appreciate it.
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