RE: What size receiver battery
Gentlemen,
Many thanks for your replies.
The DS821 is a JR servo with torque of 88 @ 6v. or 72 @ 4.8v.
I do use the 2.4 system (Spektrum DX7)and will go with 6 volts and 2000+ MAH in the Spacewalker.
I have the BUSA 1/3 scale Stearman and in it I use SR batteries @ 6v,2400MAH with dual leads. (a SR suggestion)
Laurence