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Old 10-08-2014, 07:59 AM   #1
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UNPLUG to charge batteries????

My parents have a new 2014 Coachman Pursuit. When plugged in to shore power the engine battery will drain.

The technician at the local warranty place told them this...

"The guy also said not to leave it plugged into electricity all the time, to let the converter recharge the batteries."

WHAT?

I'm new to RV's - so, correct me if I'm wrong... but doesn't the converter USE the external OR generator power to charge the battery??? Is you don't have the RV plugged in how can any charging happen? That's like telling me to UNPLUG my phone charger so my phone will charge.
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Old 10-08-2014, 08:33 AM   #2
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I tried to look up the manual for your unit.

Looks like there is no provision to charge the chassis batteries from the onboard
converter/charger. (Unless I have the wrong manual or read it wrong)

The onboard system charges the house batteries only. You could use an external battery charger to keep the engine battery charged, or something like a "trik-l-start" unit.

Here is the link to the manual. I reproduced a couple of the most relevant pages
On battery charging below.

http://www.coachmenrv.com/OwnersManu...-Motorized.pdf

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Old 10-08-2014, 08:51 AM   #3
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my Dad bought a trickle charger and he has been connecting it to the engine battery.

the main issue (posted in Coachman forum) is that if you park for more than 24 hours EVEN with shore power hooked up, the engine battery will drain to where you cannot start the vehicle.

So, something is pulling power from the engine battery even with it (the engine area) shut down.

It just seems silly to go on a road trip and everytime you stop for the night you have to hook up a charger to your engine battery.

Also: I downloaded that manual and read the entire thing last week - the part that is frustrating is that the manual is for "all coachman motorized vehicles" and most paragraphs start with "you may or may not have this..." AND usually the photos don't match what we have. I would really think that a new $80K motorhome would have a better book - heck my $200 car stereo came with a more detailed book than this...
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Old 10-08-2014, 08:57 AM   #4
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You can hook this little gadget up, and problem solved. It takes a little electricity
from the other batteries while they are charging and uses it to charge your engine batteries. All automatic. Install and forget!

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Old 10-08-2014, 10:19 AM   #5
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By now I thought all NEW Rv's came with a B.I.R.D.
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Old 10-08-2014, 10:30 AM   #6
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Quote:
Originally Posted by wfcentral View Post
My parents have a new 2014 Coachman Pursuit. When plugged in to shore power the engine battery will drain.
The technician at the local warranty place told them this...
"The guy also said not to leave it plugged into electricity all the time, to let the converter recharge the batteries."
WHAT?
I'm new to RV's - so, correct me if I'm wrong... but doesn't the converter USE the external OR generator power to charge the battery??? Is you don't have the RV plugged in how can any charging happen? That's like telling me to UNPLUG my phone charger so my phone will charge.
You are correct.... a RV converter/charger USES external OR generator power to charge the battery or batteries.
Mel
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Old 10-08-2014, 10:40 AM   #7
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Unless Coachman went super cheap on the converter/charger it does not hurt the batteries to be plugged in all ths time.

Chuck
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Old 10-08-2014, 10:40 AM   #8
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Originally Posted by wfcentral View Post
the main issue (posted in Coachman forum) is that if you park for more than 24 hours EVEN with shore power hooked up, the engine battery will drain to where you cannot start the vehicle.
If the engine battery in ANY RV drains to the point that you cannot start the vehicle after parking it for 24 hours, (whether "plugged in" or not), something needs fixing!
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Old 10-08-2014, 11:33 AM   #9
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Does Coachman (not dealer) acknowledged that is the norm for the chassis battery? There is always some parasitic battery drain, but to kill the chassis battery in 24 hrs is way to much. As Mel said something needs to be fixed. If you can't convince the dealer, go directly to Coachman.

Chuck
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Old 10-09-2014, 07:44 AM   #10
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An RV chassis is not much different than a car's in operation. If it go's dead over a short time something is wrong. Disregarding operator error; leaving something on. If you can park your car at an airport for two weeks and start when you get back you can park the RV for that time also. T a me it back under warranty and get it fixed correctly.

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Old 10-09-2014, 01:16 PM   #11
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It's not impossible that the seemingly new chassis battery is just bad. Case in point, we just had Honda replace the battery in our 2013 toad for that reason.

Also, just a note that many coaches have a small solar panel just to make up for self-discharge that is normal for batteries.

Tom
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