I know the subject of parasitic drain has been discussed a lot on the forum. In March I installed new AGM coach and engine batteries. I have not driven it much in the past several months but weekly I check them and I have a battery disconnect switch on the coach batteries. The voltages have remained constant at around 12.8 volts or so. This week I checked and the coach batteries were fine but the engine battery was so low it would not power the engine pre-heater on the diesel. I used my generator to charge the battery, got it started and connected shore power at home for 48 hours. I had the battery load tested and it is fine. When I put the RS back in storage I disconnected the coach batteries and this time I disconnected the engine battery using the disconnect near the accelerator pedal. I also checked the current with a DVM at the disconnect and found it to be 1.4 amps. I know there is a drain on the coach circuit even with the power switch in the coach off but had no idea there was a drain on the engine battery with nothing on at the dash. Is this normal or do I have a short someplace? My old engine battery sat for months at a time and never ran down. Sorry for the long post.