I have a small battery drain and when I check. It with a multi meter on 200ma it reads 04.0 is this too much of a drain, when I pull fuse #3 (upfitter#3) it drops to 02.0

 

So that is 4 milliamps? how are you checking it, disconnecting one battery and putting your meter in-line off the other? Do you have anything hooked in to up fitter #3?

4 milliamps actually doesn't seem that high to me...

 

As in 4 milli amps..
That would basically be nothing, would be .04 if the decimal were in the right place.

 

Sure it's not 40 mA? Remember 1000 milliamps = 1 ampere.

 

I usually use an auto-ranging meter, but I have others: he said he put it on the 200 milli-amp range, so that is 0 - 200 milli-amps or up to 2 tenths of an amp at that range setting; so 4 would be 4 thousandths of an amp... as Randy says: nothing...

 

Yes I unhook one battery completely and test from the negative post on the other battery and yes the meter is on 200ma...but my batteries keep going dead after a day or two not running...the meter reads 04.0 on 200ma...I just have the plain Jane model f350 with no accessories but cruise and a.c. but when I pull fuse #3 (upfitter #3 according to manual) the drain drops to 02.0 on 200ma

 

after you turn the truck off, sit inside for a bit, about 30 seconds. That should allow the time out timer to activate, try the window down button. If it goes down, its the cluster timer.

Sure your checking it in D/C and not A/C? Even 200 milliamps isn't really anything of a load.

 

Right, even 40 mA is excellent. 4 mA is just noise..

 

I have manual windows...that is why I am so confused, no accessories to stick on just a.c. and cruise are the only amenities and yes I am positive I am checking on dc camps.

 

Do you have anything plugged into the obd plug? Any trailer hooked to truck?

 

No trailer and nothing in obd plug and nothing in power point...could it be a dead ground

 

Have you tested both batts seperatly? Any coroding on post? Any acc wires besides factory hooked to batts like aftermarket alarms and such?

 

Sun visor lighted mirror, under hood light?

With your tester, negative probe to a good ground, check every fuse in the box under the steering wheel to see if something is pulling power. Make sure the ground is not the box itself, but something like the body or a pedal mounting bolt.

The drains happening when batteries are connected, not with ground disconnected and 4milliamps ain't it.

 

Pull both neg cables off and see if battreies dis-charge. Bad battreies will dis-charge without any draw on them. Before reconnecting cables,ck voltage on each battery.
12.6=full chg
12.2=half chg
12.0=25% chg