Hi I am currently try to do a project where i saw from arduino page and I found out that my motors cant work. I used 9v battery to power 5 MG996R servo motor. Yet, my nano board didnt light up and one of the servo motor only work for couple second. The below attachment is how I connect my nano board with MG996R servo motor.
MG996R servos are rated for 4.8-7.2V so I don't know why anyone would try to run them on 9V.
They also need quite a lot of current, around 1.2A EACH at peak, so a little 9V smoke alarm battery has no chance of running even one of them never mind 5. Try 6 x 1.2V NiMH rechargeable batteries and you might have at least a chance of them doing something.
Steve
Cheng88:
I used 9v battery to power 5 MG996R servo motor. Yet, my nano board didnt light up and one of the servo motor only work for couple second.
A whole couple of seconds? Pretty good going for PP3.
Small PP3-size 9V batteries are for low current only, not relays, motors, servos, GSM, LED strips, or anything needing more than 50 to 100mA.
For all those Servos only LiPo, L-Ion, SLA, or a chunky NiMH pack is appropriate.