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Old 09-16-2012, 06:17 AM   #1
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2005 Bus battery question

Our '05 Bus crank batteries lose power after less than a week of camping and the engine is hard to start. Batteries are less than 2 years old.
Some have suggested a trickle charger but I don't see any AC outlet near the battery compartment.
This is a "new to us" coach so learning curve is high for me.

Suggestions and info on this model/year is appreciated in advance.
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Old 09-16-2012, 06:42 AM   #2
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Do you know how old the batteries are? Your coach is a 2005 and if they are original batteries that would make them 7 or even 8 years old. Probably at the end of their life.

The starting batteries are most probably 12 volt batteries. You can get them checked out at most auto parts stores. It they test bad replace them.

If batteries are good, then there is a current draw draining the batteries. Detective work tracing down the draw is necessary. If you are handy with a multimeter it shouldn't take too long. (famous last words, right?)

I would think your converter should charge the starting batteries along with the coach batteries. Maybe the converter isn't doing its job?

Could also be dirty battery connections.
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Old 09-16-2012, 06:55 AM   #3
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Even two year old batteries could be shot. Starting batteries do not like being discharged and can go bad quickly from just sitting in the coach slowly discharging. Two weeks however is not long enough to cause a noticeable starting power drop from good batteries. The exception would be a parasitic draw of some significance (possible but not likely). I have a friend that stores his rig un-plugged and his batteries go bad about every two years. In my 07 there is an outlet above the coach batteries that is used for a battery buddy.
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Old 09-16-2012, 10:00 AM   #4
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Order a Trik-L-Start thats what I put on my 05 Allegro Bus. Works great check out there web site. LSLPRODUCTS.COM
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Old 09-16-2012, 10:13 AM   #5
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When you say camping, are you boondocking ? Are the batteries ok if the coach is just in storage?
A pair of 2 year old batteries can be bad, so they should be checked, one bad cell can kill both batteries in short order.
If the batteries are going down when you are plugged into shore power, and your coach has a BIRD charging system, that should be checked out too.
The BIRD system will charge the chassis batteries, BUT, only when the coach batteries have reached full charge. So the coach batteries could be in trouble too.
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Old 09-16-2012, 11:59 AM   #6
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Quote:
Originally Posted by Shadow0120 View Post
Order a Trik-L-Start thats what I put on my 05 Allegro Bus. Works great check out there web site. LSLPRODUCTS.COM



That is a rally cool device. Looks like they have several others for things like keeping the toad charged etc. Thanks for the link!
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Old 09-16-2012, 02:59 PM   #7
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Although not familiar with the 05 model, my 07 and 09 rigs have an ac outlet in the right rear compartment. That is where my electric engine preheat and trickle charger are plugged in. Wondering if you have looked in this area?
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Old 09-16-2012, 05:40 PM   #8
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05 Bus does not have electric outlet in the battery compartment
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Old 09-17-2012, 06:30 AM   #9
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Try calling Tiffin. They have always been helpful to me and I am not the original owner either. In the event there is not a devise (mine was a factory installed battery tender) there were good suggestions above, i.e. Trickle Start. A battery tender must be plugged in so if an available outlet is more than about six feet away you'll need to up the wire gauge. A Trickle Start may be the better option if you lack a close outlet. But again, you need to confirm your coach batteries are in good order. If they are borderline you're just putting off the inevitable.
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