| Batteries [message #259504] |
Wed, 20 August 2014 18:08  |
jodist
Messages: 30
Registered: April 2011
Location: pottstown,pa
Karma: 0
|
Member |
|
|
I need to replace my batteries. I have 2 up front passinger side bath regular car batteries. I have one next to the generator a marine deep cycle. Is this correct or should one of the front ones be deep cycle.
Thank You
John Stehle
78 royal
Pottstown Pa
John Stehle
78 royal by coachman
Pottstown,Pa
|
|
|
|
| Re: Batteries [message #259510 is a reply to message #259504] |
Wed, 20 August 2014 18:43  |
Ken Burton
Messages: 10030
Registered: January 2004
Location: Hebron, Indiana
Karma: 10
|
Senior Member |
|
|
Because You have a Royale, I have no idea the battery locations and purposes. On your rear battery, I do not know if that is a house battery or just an Onan starting battery. Why type to use there depends on it's purpose.
That said, you want a normal starting battery for the engine.
You want deep cycle battery(s) for the house. If you have two house batteries located side by side then use two 6 volt golf cart wired batteries in series.
If that rear battery is a second house battery wired in parallel with a front house battery then make it a deep cycle of the same type and age as the front one. I do not like parallel house batteries but in this case I do not see any way around it. If they are indeed parallel I would a 50 or 60 amp fuse in the line going up front.
Ken Burton - N9KB
76 Palm Beach
Hebron, Indiana
|
|
|
|
| Re: Batteries [message #259511 is a reply to message #259504] |
Wed, 20 August 2014 18:47 |
 |
Matt Colie
Messages: 8547
Registered: March 2007
Location: S.E. Michigan
Karma: 7
|
Senior Member |
|
|
jodist wrote on Wed, 20 August 2014 19:08I need to replace my batteries. I have 2 up front passinger side bath regular car batteries. I have one next to the generator a marine deep cycle. Is this correct or should one of the front ones be deep cycle.
Thank You
John Stehle
78 royal
Pottstown Pa
John,
This is an interesting can of worms. You Royale is a Coachman and may not be wired the same as a GM version.
My advice would be to set it up like a GM. Put the house bank in the back and leave the main engine battery up front. If you need a new house bank, blow the coin for the good battery slide. (Someone here will tell you which is the one that gets them all the way out.) And then get a pair of golf cart batteries. Those are real deep cycle. I know, I tested mine last year. They can recover from stupid deep discharging. You will need two in series for 12V.
If your coach is true to form, the front and rear house batteries are probably hard paralleled. I could go on about what a bad idea this is, but it is about time that I should find dinner. Lead/acid batteries never play nicely together, and let's just let it go at that.
The marine "deep cycle" batteries are just slightly modified car batteries. They are really starting batteries with just a little lower electrolyte density so they won't be toast after the first serious discharge. But, they really don't do well at the deep thing at all.
Matt
Matt & Mary Colie - Chaumière -'73 Glacier 23 - Members GMCMI, GMCGL, GMCES
Electronically Controlled Quiet Engine Cooling Fan with OE Rear Drum Brakes with Applied Control Arms
SE Michigan - Near DTW - Twixt A2 and Detroit
|
|
|
|
| Re: Batteries [message #259532 is a reply to message #259504] |
Wed, 20 August 2014 20:53 |
77Royale
Messages: 461
Registered: June 2014
Location: Mid Michigan
Karma: 6
|
Senior Member |
|
|
For what its worth I have a 77 Royale.
I downoaded the electrical and plumbing drawings.
Look at the 12V system page 5 of 30. Mine is currently laid out like this. With a "Starting" battery 770 or 800 CCA up front, Then a deep cycle marine 12V behind that. In the back at the Gen Compartment, a near identical size and CCA starting battey.
http://www.gmcmi.com/wp-content/uploads/2014/05/77-Coachmen-26RB-Electrical-Plumbing-Drawings-copy.pdf
All the drawings are now printed and 3 hole punched sitting in my coach....
77 Royale, Rear Dry Bath. 403, 3.55 Final Drive, Lenzi goodies, Patterson carb and dizzy.
Mid Michigan
|
|
|
|
GMCforum
Search
Help
Register
Login
Home
