Testing charging to coach battery

[Arberg0]

From: jipjob1 (Original Message) Sent: 12/27/2003 6:32 PM

Well thanks to all the help on this board I got my electrical problem just about done. I installed a new Alernator ($32.00) And a new regular ($15.00). Now the charging system is charging at the right amps 12 to 14 on my main battery not 16 amps. Now I still have a problem with my house battery not showing charged at 12 to 14 volts. I know thies batterys are charged up but is thier a simple way to tell if my house battery is being charged by using my voltage reader? I mean can I disconect the house battery one lead of course (Nagative) and put my voltage reader in place of that lead and test if the battery is charge right at the site of the battery? Or how is this done? I'm fairly well trained as a mechanic but as an electrician I suck!!!!!!!!!!!!!!!!!!!!!!JIpjob

PS someone should shoot the guy who desisn those brackets and support bolts that hold up the alternator. Drop by mistake one of the spacers that hold on the Alternator and did not know it. When I went to put new alternator i didn't realize that their was thies spacer but soon found out somthing was wronge when the pulley would not line up right with fan belt.  Got underneath and looked for spacer and found it lying on the ground.  Just not fun working in the rain but like I said befor I got it together and the alternator just works fine.



 

From: denison Sent: 12/28/2003 12:16 AM
The way to tell if you coach battery is being charged probably requires using a handheld voltmeter. If you don't own one, I recommend getting an inexpensive digital VOM. I think they can be bought for under $20 now. I carry mine with me on any vacation trip.
Then: Measure the voltage across both batteries, positive post to negative post, when they have been sitting for several hours or overnight without the engine running. Measure right at the battery itself. A fully charged battery should read 12.6V DC or close to it. Then start the engine and just let it run for ten or 15 minutes. Now measure the engine battery - it should be reading closer to 13 or 13.2 volts at least. But if the coach battery is not connected, i.e if the dual-mom switch is centered, the coach battery should be reading the same as it was with the engine not running. Then move the dual-mom switch to the -dual- position, and after giving the system a few minutes, measure the voltage across the coach battery again. It should have risen by about the same amount as the engine battery did. If not, you have to find out if the solenoid is pulling in, and if not, why not. denison






From: jipjob1 Sent: 12/28/2003 12:49 AM
Hay thanks for the infoJipjob