ORIGINAL: goirish
Bruce
The futaba I am talking ab out is a 6exap. I said it had some kind of crystal in it, but it is a diode that that protects the tx. I can't use my voltmeter on it either, so I have to trust the one on the tx. Maybe I am mistaken about not being able to charge the tx battery when it is still in the tx. At my age I get so confused. Now what were we talking about?
The diode WILL prevent use of a meter or discharging through the external connector. Using the proper connector connected to the proper polarity and at a reasonable charging rate, any "regular" charger should function. A charger that needs to "detect" the battery voltage will NOT work though because of the diode. These would be called "peak detection" chargers I believe but don't quote me on that as I haven't used one of those.