If it is a power problem, that won't help. Remember, the servo gets power from some supply, but it is controlled by the electronics. Not much power is being used to control it. A lot of people have had flakey issues because of power problems with the servos. Myself included! If you can solder 4 D-Cell batteries together, you could power the servo from that. It shouldn't be that hard to find a 5 or 6 VDC wall wart transformer to power it. But really.... If you are fighting a power issue, you need to know that and get that resolved first.