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What does the alternator charge

4ever16
Explorer
Explorer
I have a 2007 Allegro 35TSA 8.1 Liter gas motor, has two (2) six (6) volt coach batteries. Question does the alternator also charge the coach batteries as well as the motor battery ????
Thanks for your help...just left Anza Borrego Ca. the desert is beautiful at night.....
Happy New Year to all.........
46 REPLIES 46

donfrump
Explorer
Explorer
OLYLEN wrote:
Well you are very wrong some do some don't, that is why I said blanket statements don't work. Like all A's are diesel or all C's are gas.
So you can close the case but you are very missinformed.

LEN


Ok If Iam so wrong as you allude to supply me a Class A(modern Era) make and model that does not charge the House batteries via alternater source while engine runs?
I have owned a lot of A,s and worked on a ton of them and have never heard of or seen a single unit that does not charge the house batteries

OLYLEN
Explorer
Explorer
Well you are very wrong some do some don't, that is why I said blanket statements don't work. Like all A's are diesel or all C's are gas.
So you can close the case but you are very missinformed.

LEN

donfrump
Explorer
Explorer
OLYLEN wrote:
Back to the OP.
Some coach's charge from the Alternator to both house and chassis some do not.
Some coach's charge from the system on the shore power and some do not. If they do charge both from shore power normally the Gen does also.
Some are from the factory with either or.
Some like Monaco may or may not, if Monaco does this, most of the mid 2000's on have a BIRD board that plugs in to the main board under the drivers seat.
Even the C's, SOME, have this feature, some do not.
I have even seen coach's all but built in a row have different setups.
Just a blanket statement, maybe, could be, might be, should be, sure does, take your pick.

LEN

The OP asked if the alternater charged his "HOUSE" batterys.The answer is yes. ALL modern era Class A are wired this way
He has also posted a update that in Fact his house batterys charge through/via the alternater.
To me case closed

OLYLEN
Explorer
Explorer
Back to the OP.
Some coach's charge from the Alternator to both house and chassis some do not.
Some coach's charge from the system on the shore power and some do not. If they do charge both from shore power normally the Gen does also.
Some are from the factory with either or.
Some like Monaco may or may not, if Monaco does this, most of the mid 2000's on have a BIRD board that plugs in to the main board under the drivers seat.
Even the C's, SOME, have this feature, some do not.
I have even seen coach's all but built in a row have different setups.
Just a blanket statement, maybe, could be, might be, should be, sure does, take your pick.

LEN

donfrump
Explorer
Explorer
pianotuna wrote:
dontrump,

I apologize to your friend and you. But my experiences with RV sellers have been less than pleasing.

For example installing a roof air conditioner where the RV was prewired and there was a vent.

$700 Air conditioner
$850 Labor

Or

$2.43 for a 15 amp fuse (water pump--fuse at the power distribution center)
$80.00 for labor

Thanks and understood for sure bad apples in every barrel those horrible rates are just as bad in the truck and car sales world,the home repair business etc etc .Some of the quotes I have seen heating companies charge old people or unsuspecting people in general are outright crimminal

pianotuna
Nomad III
Nomad III
dontrump,

I apologize to your friend and you. But my experiences with RV sellers have been less than pleasing.

For example installing a roof air conditioner where the RV was prewired and there was a vent.

$700 Air conditioner
$850 Labor

Or

$2.43 for a 15 amp fuse (water pump--fuse at the power distribution center)
$80.00 for labor
Regards, Don
My ride is a 28 foot Class C, 256 watts solar, 556 amp-hours of Telcom jars, 3000 watt Magnum hybrid inverter, Sola Basic Autoformer, Microair Easy Start.

donfrump
Explorer
Explorer
the issue was he(Monaco owner) returned and the service department told him this as salesmen do not diagnose nor do the warrenty repairs
Not sensitive today at all just think its rather ignorant when a person says all RV salesmen lie its a ridiculous statement to make as its simply just not true.
Yes I have run into sales people that BS and have run into lots that are honest and well informed guess iam just lucky

Executive45
Explorer III
Explorer III
donfrump wrote:
RLS7201 wrote:
donfrump wrote:
pianotuna wrote:
How can you tell when a dealer is lying? (His lips are moving).

Check for a burned fuse.

Check for a dead solenoid or diode type isolator.


that's a crock of BS. my best friends a dealer and is the most honest guy around.As a dealer if he sells a new unit and its wired wrong or something is wrong from the factory he fixes it and sends the bill to the factory.no questions asked.there is zero reason for a dealer to lie and say that's the way it is knowing full well its not.Now if the unit was intentionally built this way then that's a different story but again the dealer would not be lieing


That makes your best friend one in a million. Please share his name, address and phone number, so the RV community will know where to trade.

Richard

lets get back to basics here. why? like for what good reason would a dealer lie to a person that just bought a new unit if it was miss wired by the factory. a dealer would not lie and say it was not so, why would they? they get paid to make factory warrenty repairs
so they have no skin in the game in fact they will pick up some profit when fixing a factory fault. yes there are a few scum bag dealers out there as there are bad doctors, certainly bad cops, bad mail men,bad teachers but we don't paint them all with the same brush


Bit sensitive today aren't we:h:h

Fact is most dealers/salesman are not liars, just misinformed. Unfortunately, many salesmen/women have no clue about what they're selling and they simply 'guess' at things while keeping the 'prize' in sight. It becomes even worse where the dealer carries various brands. Look at how many questions are posted on here. Many of these questions are brought up to salesmen too. They don't really know, are enthusiastic about making a sale so they guess instead of finding out the answer. After all you do want a 'knowledgeable' salesman right? Ignorance makes you appear weak. You want a salesman that's strong, yes? More salesmen should simply say, "I don't know, ask on RV.Net"..how do you think that would fly????...just sayin....Dennis
We can do more than we think we can, but most do less than we think we do
Dennis and Debi Fourteen Years Full Timing
Monaco Executive M-45PBQ Quad Slide
525HP Cummins ISM 6 Spd Allison
2014 Chevrolet Equinox LTZ W/ ReadyBrute
CLICK HERE TO VIEW OUR TRAVEL BLOG

dougrainer
Nomad
Nomad
ArchHoagland wrote:
FIRE UP wrote:
ArchHoagland wrote:
Well I hate to do battle with Wolfe10 as he knows his stuff but on a 2004 Monaco La Palma with the 8.1 gas engine it does not charge the house batteries.

I don't mind battling with you other guys...just Wolf10....LOL


So you're saying that, an expensive Monaco coach, in the '04 era, designed it so that driving from one camp site to another or, long term camping, or, traveling, that engine alternator is NOT SUPPOSED TO CHARGE THE HOUSE BATTERIES, CORRECT? And that it's (the alternator) is only supposed to charge the chassis batteries? I personally don't believe it was built that way. I have never owned one and, in all reality, I have no basis for my side of the argument.

But, as there are a few different styles of linking both sets of batteries to the alternator, I would surely think Monaco would have utilized at least one version of them, to keep the house batteries charged while driving. I mean, what happens if the generator goes south while you're dry camping? Are you just supposed to give up and go home?

Personally I'd have to dig into that wiring to make sure that something's not broke, disconnected, fried, bad ground, bad solenoid, bad circuit board, something!
Scott


I took it back to the dealer when brand new and they confirmed it.

Actually I prefer it that way. I don't want my engine electrical tied into my house electrical at all.

I've never had a problem with the batteries staying charged on house or engine side other than I do shut off my engine battery with the big disconnect switch Monaco installed.

I'm just the lowly bottom of the line entry model. In fact Monaco has some owners clubs and I'm so low I wasn't allowed to join them. They are for just the top three models that year. So don't pick on me, it's bad enough I'm an outcast. LOL


Sorry, but as a Technician that worked and we sold Monaco(La Palma also), ALL Monaco's charge both battery banks from the engine. Just because YOUR dealer stated they checked it just shows they either lied or did not know what they were doing. As I have stated in posts for years, there sre only 2 models of Motorhomes that did not charge the Coach batteries and they are out of business and I do not remember the 2 models and this was over 15 years ago. Now, lets talk about Monaco systems. They had a TSB from the mid 2000's that addressed a small problem. What to do when driving and you had the LARGE 1500 to 3000 watt Inverter charger and you had the Genset on while driving. They installed a hot wire on the Genset 12 volt indicator light to a Bosch relay so when the Genset was ON, the chassis would NOT charge the coach batteries. The production from then on had the Bosch relay as OEM build. Genset OFF and the Chassis Alternator charged the battery banks. Doug

donfrump
Explorer
Explorer
RLS7201 wrote:
donfrump wrote:
pianotuna wrote:
How can you tell when a dealer is lying? (His lips are moving).

Check for a burned fuse.

Check for a dead solenoid or diode type isolator.


that's a crock of BS. my best friends a dealer and is the most honest guy around.As a dealer if he sells a new unit and its wired wrong or something is wrong from the factory he fixes it and sends the bill to the factory.no questions asked.there is zero reason for a dealer to lie and say that's the way it is knowing full well its not.Now if the unit was intentionally built this way then that's a different story but again the dealer would not be lieing


That makes your best friend one in a million. Please share his name, address and phone number, so the RV community will know where to trade.

Richard

lets get back to basics here. why? like for what good reason would a dealer lie to a person that just bought a new unit if it was miss wired by the factory. a dealer would not lie and say it was not so, why would they? they get paid to make factory warrenty repairs
so they have no skin in the game in fact they will pick up some profit when fixing a factory fault. yes there are a few scum bag dealers out there as there are bad doctors, certainly bad cops, bad mail men,bad teachers but we don't paint them all with the same brush

RLS7201
Explorer II
Explorer II
donfrump wrote:
pianotuna wrote:
How can you tell when a dealer is lying? (His lips are moving).

Check for a burned fuse.

Check for a dead solenoid or diode type isolator.


that's a crock of BS. my best friends a dealer and is the most honest guy around.As a dealer if he sells a new unit and its wired wrong or something is wrong from the factory he fixes it and sends the bill to the factory.no questions asked.there is zero reason for a dealer to lie and say that's the way it is knowing full well its not.Now if the unit was intentionally built this way then that's a different story but again the dealer would not be lieing


That makes your best friend one in a million. Please share his name, address and phone number, so the RV community will know where to trade.

Richard
95 Bounder 32H F53 460
2013 CRV Toad
2 Segways in Toad
First brake job
1941 Hudson

donfrump
Explorer
Explorer
pianotuna wrote:
How can you tell when a dealer is lying? (His lips are moving).

Check for a burned fuse.

Check for a dead solenoid or diode type isolator.


that's a crock of BS. my best friends a dealer and is the most honest guy around.As a dealer if he sells a new unit and its wired wrong or something is wrong from the factory he fixes it and sends the bill to the factory.no questions asked.there is zero reason for a dealer to lie and say that's the way it is knowing full well its not.Now if the unit was intentionally built this way then that's a different story but again the dealer would not be lieing

pianotuna
Nomad III
Nomad III
How can you tell when a dealer is lying? (His lips are moving).

Check for a burned fuse.

Check for a dead solenoid or diode type isolator.
Regards, Don
My ride is a 28 foot Class C, 256 watts solar, 556 amp-hours of Telcom jars, 3000 watt Magnum hybrid inverter, Sola Basic Autoformer, Microair Easy Start.

Dutch_12078
Explorer II
Explorer II
4ever16 wrote:
Thanks so much for every ones help. I took my meter checked the coach batteries without motor running, and then with it running.....Motor DOES charge the coaches batteries.......must be one heck of an alternator....
Thanks again,

You most likely have at least a 90 amp alternator. That's probably about double the output of your converter/charger, so the strain on the alternator to charge all the batteries is not that great. The engine battery usually recovers from a start pretty quickly and doesn't need much to keep the engine running.
Dutch
2001 GBM Landau 34' Class A
F53 chassis, Triton V10, TST TPMS
Bigfoot Automatic Leveling System
2011 Toyota RAV4 4WD/Remco pump
ReadyBrute Elite tow bar/Blue Ox baseplate

Dutch_12078
Explorer II
Explorer II
WyoTraveler wrote:
4ever16 wrote:
Thanks so much for every ones help. I took my meter checked the coach batteries without motor running, and then with it running.....Motor DOES charge the coaches batteries.......must be one heck of an alternator....
Thanks again,


May want to also check, many MHs now also charge the starting battery when on shore power. Nice feature.

And if yours doesn't, that feature can be easily added.
Dutch
2001 GBM Landau 34' Class A
F53 chassis, Triton V10, TST TPMS
Bigfoot Automatic Leveling System
2011 Toyota RAV4 4WD/Remco pump
ReadyBrute Elite tow bar/Blue Ox baseplate