coach batteries

MEXICOWANDERER wrote:
Depends if you have a gear reduction starter. All of the IH 6.9 & 7.3 motors down here have a single group 31 battery. Small Cummins and all Detroit 2-cycles have single batteries.

FORD vehicles require 2 batteries. I have an E450 Ford chassis Class C motorhome which requires 2 batteries like many other FORD diesel pick-ups and vans do.

Depends if you have a gear reduction starter. All of the IH 6.9 & 7.3 motors down here have a single group 31 battery. Small Cummins and all Detroit 2-cycles have single batteries.

Coach battery, chassis battery, and starting battery is all the same to me. Diesel motors require 2 starting batteries. The original starter Motorcraft batteries lasted for 8 years. That is a good reason to replace with same brand.

It's awful tough to argue with success.

But keep in mind a battery that does well in the climate of say California, may suck sour lemons in Arizona or Minnesota.

The different names for the batteries sure is misleading folks..

You hear COACH-HOUSE-TRAILER name which are usually two batteries providing DC POWER for the living quarters of the RV.

Then there is the START-CHASSIS-MOTOR names which are used to identify the battery that starts the ENGINE of the motorhome...

The DEEP CYCLE or HYBRID DEEP CYCLE are usually what you find for the living quarters of the RV's which are designed to offer many cycle from 50% to 90% battery states.

A START BATTERY is most always labeled with CRANKING AMPS and offer a large DC CRANKING current for a short duration. These batteries do not stand up very well for multiple cycle of battery charge state.

In your description the COACH BATTERY and the CHASSIS BATTERY are two different animals in the RV WORLD... Since you listed TWO batteries makes me think you are referring to the BATTERIES for the living area of the RV not the motor start battery.

This is a neat article from google search describing the different types of batteries used in todays RV's...
DIFFERENT RV BATTERIES

Roy Ken

Chassis or house?

Chassis (Starting)batteries the different lines have differnt Cold Cranking Amps and Warranty..Forget the "Megatron" and go with the line that has the amps and the warranty you like.

HOUSE batteries you want AMP HOURS and Warranty.. Same advice.

In both AMPS and AMP HOURS More is better (Warranty likewise).

NOTE: DEEP CYCLE batteries like the GC-2 hold, pound for pound or cubic foot for cubic foot nearly the same amount of amp hours as starting batteries (one exception) the difference is you can safely use half of that power

Starting batteries perhaps 15-20 Percent,, MARINE/deep cycle 25-30 percent

The exception is Optima.. Amp Hours per cubic foot = 60% of regular batteries,, The reason should be obvious. Amp Hours per POUND.. about the same. (They have fewer pounds per cubic foot).

ksg5000 wrote:
Are you referring to Chassis battery?

YES

Are you referring to Chassis battery?

Did the same. The Motorcraft battery in my truck went 10 yrs, 1 mo.. I replaced it with the identical battery.