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Timeline for Using MicroServo with 9v battery

Current License: CC BY-SA 3.0

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Jan 12, 2017 at 17:05 comment added Bruce Abbott SG-90 draws 0.75A peak. 4 servos would need 3A. Recommended battery is a 4 cell (4.8V) AA Nicad or NiMH pack. AA Alkalines might be OK if the servos are not heavily loaded.
Jan 12, 2017 at 15:39 vote accept Pacha
Jan 12, 2017 at 15:34 comment added Dave Tweed The 9-V battery probably can't deliver enough current to fry the servo (part of "got lucky"), but a high-current supply at that voltage probably would fry them under heavy load.
Jan 12, 2017 at 15:25 comment added Pacha Thanks for the answer. I don't want to fry my servos, that is why I am asking. I am afraid if I power them with a 9v they might overheat and break. Is that possible? Or is it current that could break them?
Jan 12, 2017 at 15:19 history answered Dave Tweed CC BY-SA 3.0