Originally Posted by rburns4147
My new Rockwood 8285IKWS has a battery disconnect switch. My old TT did not so I am trying to figure it out. The Rockwood has a single battery and a push-pull switch to disconnect the battery. The switch kills everything on the trailer except for a couple of cargo compartment lights which no doubt bypass the switch. My question is would the converter charging circuit also bypass the switch and charge the battery even if the switch is off? My converter has a trickle charge function and it would be nice if it did maintain the battery even if the disconnect switch is off. Is there a way I could check with a volt meter?
On our Roo, the converter is not affected by the disconnect. If the trailer is plugged in all of 110V and all of the 12V systems function normally. What I don't know is if the converter is still able to send a charge to the battery.
I would think the easiest way to check is to let the trailer sit without shore power for a little while, and check the voltage across the battery. It should be between 12 and 13 volts. Then plug it in and check the voltage across the battery. When the converter first starts charging you should see a high charge rate - something around 14 volts. Then hit the disconnect. If it stays up there, you are still charging. If it drops back to the original reading, the converter isn't charging.