# Drone Motors not accelerating properly

**URL:** <https://forum.theavr.org/t/drone-motors-not-accelerating-properly/232>\
**Category:** AVR Drone Hardware\
**Created:** [October 6, 2022, 6:45pm UTC](https://forum.theavr.org/t/drone-motors-not-accelerating-properly/232 "2022-10-06T18:45:05Z")\
**Posts on this page:** 4\
**Page:** 1

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**Author:** ![Ag3ntOran6e](https://avatars.discourse-cdn.com/v4/letter/a/ecae2f/32.png) [@Ag3ntOran6e](https://forum.theavr.org/u/Ag3ntOran6e)\
**Post date:** [October 6, 2022, 6:45pm UTC](https://forum.theavr.org/t/drone-motors-not-accelerating-properly/232/1 "2022-10-06T18:45:05Z")

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One of our teams is having a problem with the drone motors. We arm the drone, we move the left joystick up and the motors just stay at the same speed.

When we take the propellers off, and we put the left joystick all the way up, they accelerate slightly and sound like they then decelerate.

Any ideas what it could be from? We are wondering if they actually swapped out their ESC, but not sure what the bad firmware actually did.

Any help would be greatly appreciated!

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**Author:** ![nbrownback-bell](https://yyz1.discourse-cdn.com/flex007/user_avatar/forum.theavr.org/nbrownback-bell/32/71_2.png) [@nbrownback-bell](https://forum.theavr.org/u/nbrownback-bell)\
**Post date:** [October 6, 2022, 8:37pm UTC](https://forum.theavr.org/t/drone-motors-not-accelerating-properly/232/2 "2022-10-06T20:37:51Z")

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This is very similar behavior that we saw with the incorrect ESC firmware. It is possible you are using a prior motor.

@droneblocks Is there any testing you can think of or should they request a new ESC

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**Author:** ![droneblocks](https://yyz1.discourse-cdn.com/flex007/user_avatar/forum.theavr.org/droneblocks/32/159_2.png) [@droneblocks](https://forum.theavr.org/u/droneblocks)\
**Post date:** [October 6, 2022, 8:41pm UTC](https://forum.theavr.org/t/drone-motors-not-accelerating-properly/232/3 "2022-10-06T20:41:27Z")

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This definitely sounds like the ESC behavior that @lancer and I experienced during previous testing when we had the old settings. I think it needs to be reprogrammed. I would recommend requesting a new ESC.

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**Author:** ![Ag3ntOran6e](https://avatars.discourse-cdn.com/v4/letter/a/ecae2f/32.png) [@Ag3ntOran6e](https://forum.theavr.org/u/Ag3ntOran6e)\
**Post date:** [October 6, 2022, 8:41pm UTC](https://forum.theavr.org/t/drone-motors-not-accelerating-properly/232/4 "2022-10-06T20:41:55Z")

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Got it! Thank you both so much for the response.