what are the rules when testing battery packs? heard mention of a Expanded Scale Voltmeter and unaware of how this differs from a normal AC/DC meter. I'm asking because I flew yesterday, 30min stick time, didn't charge last night, Tx now says 10.0V, and Rx says 5.03V, but RX is only a 4 cell 4.8V pack. hmmm. The 23mV over voltage is weird since I flew without recharging. Do I need to test voltage or current while under load or anything, or is open circuit V at the battery good enough?

next, exhaust goo is running down throttle pushrod guide tube and onto the throttle servo. Is there a trick to stopping this? thought I'd add a little something to the rod to allow the fuel to drip before entering the tube.

Thanks guys..

btw, here's the meter Im using
[link=http://www.radioshack.com/product.asp?catalog%5Fname=CTLG&category%5Fname=CT LG%5F011%5F008%5F002%5F000&product%5Fid=22%2D810&h p=search]Multimeter[/link]