Very nice stuff.....again!
BTW did you get to read my reply to your voltmeter question before the forum crash wiped it from BG ?
The answers were basically :
Yes, but won't work properly for rechargeables (NiCad / NiMH etc), they use another method of determining remaining charge.
the milliammeter will only use a couple of milliamps at most, so nothing to worry about there. and Yes its fine to use for battery devices, just as long as the device you are measuring doesnt require more than the meter's scale. 1000mA is 1Amp, 500mA is 1/2 an Amp etc.