hello, my name is Joseph and I am writing from Italy is a long time since I follow you and thanks to your advice I built a hexapod type phoenix and it works quite well, the problem that I submit it’s because I burned two servants hitech 485, but before I write trying to figure out alone and depended on what I measured with a voltmeter that tensone power of the servants from about 6 volts to 7.3 volts passes with the servants under stress, it seems to me strange that invee to lower the voltage increases, would like to help me solve the problem not to burn the servants, attach outline of how I connected the servants and the scheme of the stabilizer that transforms me into the 7.2 volts 3.6 amps type NIMH (charged battery I measure 8.4 volts) in 6 volts.
I apologize for the translation.
thanks Giuseppe
Servos usually use ~6v max. For voltage regulation, a heavy duty voltage regulator is needed. Search ebay for UBEC.