ktsame
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1969 Frolic
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Post by ktsame on Mar 19, 2018 7:38:10 GMT -8
I have a 1969 Frolic with two wet cell batteries. The batteries charge when I am towing but they do not charge when I am plugged into shore power. What do I need to add so that my trailer's batteries will recharge on shore power? I am confused about converters and inverters.
Thanks for your help,
kt
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charliemyers
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Post by charliemyers on Mar 19, 2018 8:28:39 GMT -8
In a camper you would use a converter to convert 120V AC (alternating current) to 12V DC (direct current) primarily to run your 12V devices. You would use an inverter to convert 12V DC to 120V AC to run 120V devices when you're not connected to shore power.
What you need to charge your battery on shore power is a battery charger. Some converters (not inverter) have a charger built into them. While you're connected to shore power, the charger would recharge your 12V DC batteries and keep them topped off.
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ktsame
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Post by ktsame on Mar 19, 2018 9:06:51 GMT -8
Thanks for that information. I have a battery charger but I was looking for an easier way to charge up the batteries. A converter with a charger seems like a better option. Do you know how difficult it would be to install one? Any recommendations about a brand to purchase?
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charliemyers
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Post by charliemyers on Mar 19, 2018 11:45:54 GMT -8
ktsame I highly recommend that you spend some time reading through the Let's Talk 12V and Tow wiring forum looking for info specific to converters & chargers that would be suitable to your situation. I know that Progressive Dynamics makes a reputable converter/charger, but there are cheaper alternatives. There are some that say that a charger isn't even necessary because the tow vehicle charges the battery while you're on the road, and while plugged into shore power your converter handles the load (hence there should be no drain on your battery bank). And if you're boon docking, then you have no way to power your charger even if you had one.
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ktsame
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Post by ktsame on Mar 19, 2018 13:06:13 GMT -8
Thanks much - I will take a look.
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Post by vikx on Mar 19, 2018 19:36:34 GMT -8
I like the PD converters very much but a simple battery maintainer will charge your batteries when on shore power. They are a lot less money than a converter and take care of things pretty well.
The difference is a converter will power all 12 volt items all day when on shore power, including the fantastic fan. A maintainer can't keep up with everything at once. Since you have 2 batteries, I'm thinking a converter might be better. I go with the 9245 with a built in smart charger.
Both are fairly easy to connect but must be done by an experienced person.
I'll move this to our 12 volt section.
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