How to power servos with batteries?

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Maly2021-07-21 19:17:50

Arduino

Maly, 2021-07-21 19:17:50

There are 4 servos. Pin control is enough, but servos need a DC power supply. Is it possible to connect x1 servo to 4 pcs 1.5 batteries, or to a krone battery? And is it possible without motershield, dc-dc converters or transistors. Servo micro servo 9g. And how long will the battery last?

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3 answer(s)

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Vasily Bannikov, 2021-07-21
@vabka

It is possible, but as the batteries run down, the servos will move slower and less accurately.

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evgeniy_lm, 2021-07-21
@evgeniy_lm

Servos are different. For example, small SG / MG90 from 6V (4x1.5V AA) will work without problems, but the MG996R, which also works from 6V, will not pull the batteries, you need at least a lithium battery and a step-up converter from 4V to 6V. Well, I generally keep quiet about industrial servos

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lonelymyp, 2021-07-21
@lonelymyp

Batteries will work, the question is how long. The more actively you move the servos, the faster the batteries will run out. Even if you do not move at all, the batteries will still sit down, only slowly.
Maybe it will last half an hour, maybe 5 minutes, it still depends on the batteries themselves, how good they are, there can also be a 2-fold difference in capacity.