RE: Max voltage for a Hitec servo
There are in general couple different ways to make this in a safe manner:
1. Use an effcient integrated DCDC Converter. Cost is about 10-15 USD per servo and
that leads people to abandon the use of old servos and purchase the new so called
'high-voltage' servos; many makers have them in the catalogs. This is indeed the best
especially if you are aiming at high speed servo performance, for example for F3A or
similar demands.
2. The cheapest what I use is on the attached file and it cost about 1-2 USD per servo
by using linear regulators '7806' and couple capacitors. It will take you couple hours to
solder those components. NOTE: There isn't any circuit here which checks now low the
voltage of the LiPo has gone; it is god t keep the LiPo aways charged and ballanced
so to void their damage ineed frm overdscarge.
BR, Nick