Diode isolator terminals December 22, 2004, 11:54:58 am Yahoo Message Number: 48204................Also, is there any reason I cannot clip the same jumper to the same isolator terminals to draw coach battery juice to start the Ford engine if the engine battery goes dead from lights left on, etc?................ No, the wiring to the batteries for charging is of insufficient gauge to handle the current required by the starter motor. Also you will need to add water to the chassis battery. It says not to try to add water on the top of the battery itself. Thanks to Andy Baird's prior post, I did pry off the caps and add water to mine with no ill effects. After four years the water was low. Ron and Bluebelle in sunny San Diego[Non-text portions of this message have been removed]