Do any of yall geniuses now what the power supply of four servo motors should be? Trying to narrow down the problem 
Thanks!
Which servos ?
Where did you get them from ?
The first step would be to post a link to the servo motors...
You are recommended to take the maximum current rating of one motor and multiply by 4, and maybe add 1 amp.
I have four 9g servo motors from amazon
How would you do that?
Link ?
Yes.
It’s probably safe these small servos need <500mA each.
Let’s say 500 mA.
500mA * 4 = 2A.
2 + 1 = 3 Amps
A power supply @ 3 amp 6 volt should be more than enough.
use a lipo battery
For a hobby 6v servo, this is not correct.
The LiPo battery isn't correct?
Also thanks for the help dude
Most hobby servos require a 4.8v to 6v power supply.
2 lipo batteries and a DC to DC converter could be used to get you down to your 6v level.
Ok thanks
Use a voltage booster board along with a lipo battery.
Unlikely to find a cheap 3A rated boost board.
Normally LiFePO4 2S packs are used for RC receivers and servos, these are 3.2V per cell so 2S is 6.4V and find with servos.
I'd normally budget 1A per small servo in the absense of a datasheet, so 6V 4A seems safe - any RC LiFePO4 2S pack should be able to source 4A. 3A may be plenty though, it all depends on the actual servos, which alas often have no useful datasheet.
why do you want the cheap one? cheap=bad. mom always said that the money doesnt matter, only the quality.
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