MrWizard wrote:
just becomes he suggests that "you could have some fun" by modifying your charging system with the field control POT
does not mean he was wrong about using heavy wire ... (snip)
Nowhere in my previous post did I mention cabling or criticize his cable sizing recommendations.
MrWizard wrote:
... and making the house batteries primary and the chassis battery secondary for the RV/motorhome
as the house batteries see far more use and abuse than the chassis battery
Unfortunately, the loads imposed on the typical MH engine starting battery(s) and the charging profiles required, are different than loads and charging profiles on the house battery(s), as stated above. Sure, you can use the house batteries to start and run the MH engine, but you'll dramatically shorten their life by imposing repeated, high amp loads (upwards of 400 amps and more) on them.
MrWizard wrote:
BTW .. his feild mod will work and give you total manual control
Again, I
never implied tapping the feild wouldn't work... sure it will work. But how many forum members do you think are savvy enough to successfully pull-off such destructive & irreversible mod on their $300 alternator? Not to mention the meticulous babysitting required to prevent destroying your batteries. You need only visit ANY starter & alternator rebuilder and they'll be happily explain why it's not only a foolish modification, but nearly impossible given the compactness and complexity of the current designed units.
