# Why does the drone need to change batteries after every 1min flight?

**URL:** <https://discuss.px4.io/t/why-does-the-drone-need-to-change-batteries-after-every-1min-flight/32590>\
**Category:** QGroundControl\
**Created:** [June 6, 2023, 5:52pm UTC](https://discuss.px4.io/t/why-does-the-drone-need-to-change-batteries-after-every-1min-flight/32590 "2023-06-06T17:52:00Z")\
**Posts on this page:** 4\
**Page:** 2

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**Author:** ![sibujacob](https://discuss.px4.io/user_avatar/discuss.px4.io/sibujacob/32/9673_2.png) [@sibujacob](https://discuss.px4.io/u/sibujacob)\
**Post date:** [June 29, 2023, 3:47am UTC](https://discuss.px4.io/t/why-does-the-drone-need-to-change-batteries-after-every-1min-flight/32590/21 "2023-06-29T03:47:23Z")

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So finally , everything is OK…

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**Author:** ![AlexWUrobot](https://discuss.px4.io/user_avatar/discuss.px4.io/alexwurobot/32/11387_2.png) [@AlexWUrobot](https://discuss.px4.io/u/AlexWUrobot)\
**Post date:** [June 29, 2023, 1:51pm UTC](https://discuss.px4.io/t/why-does-the-drone-need-to-change-batteries-after-every-1min-flight/32590/22 "2023-06-29T13:51:01Z")

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The issue "change batteries after every 1 min flight " does not happen.  
However, the unexpected switching from offboard mode to AUTO.LAND mode still happens.  
There is the following discussion.

> [@Why does drone suddenly switch AUTO.LAND mode from offboard mode when descending? (Failsafe enabled: no offboard)](https://discuss.px4.io/t/why-does-drone-suddenly-switch-auto-land-mode-from-offboard-mode-when-descending/32639):
>
> Thank you very much for your help. Is there any min height setting in QGroundControl, which will trigger the AUTO.LAND mode? During my offboard control descending, the drone suddenly switch to AUTO.LAND mode from offboard mode. I am confused about that and the unexpected switch mode makes the programmed descending drone has a unexpected spike, like the [video at 1:47](https://youtu.be/VvBAhXOJzNI?t=77) There is the [Pixhawk log](https://logs.px4.io/plot_app?log=eb84df8c-0926-4f9a-98ce-246cad22e73e) and the screenshot of the distance sensor. At the time stamp: from 1686240419 to 1686240…

Thanks a lot for your help again ^ ^

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**Author:** ![sibujacob](https://discuss.px4.io/user_avatar/discuss.px4.io/sibujacob/32/9673_2.png) [@sibujacob](https://discuss.px4.io/u/sibujacob)\
**Post date:** [June 29, 2023, 2:18pm UTC](https://discuss.px4.io/t/why-does-the-drone-need-to-change-batteries-after-every-1min-flight/32590/23 "2023-06-29T14:18:31Z")

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Hi.

i think this is built into the PX4 firmware…I am not sure where i read it but in previous versions it used to be the same where after a mission is completed , the auto land option gets activated…Will this be an issue for your offboard mission

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**Author:** ![AlexWUrobot](https://discuss.px4.io/user_avatar/discuss.px4.io/alexwurobot/32/11387_2.png) [@AlexWUrobot](https://discuss.px4.io/u/AlexWUrobot)\
**Post date:** [June 29, 2023, 2:58pm UTC](https://discuss.px4.io/t/why-does-the-drone-need-to-change-batteries-after-every-1min-flight/32590/24 "2023-06-29T14:58:46Z")

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Yes, unexpected switching from offboard mode to AUTO.LAND mode causes an issue.  
Since my mission is the drone should follow a target and gradually descend, unexpected switching from offboard mode to AUTO.LAND mode will interrupt the following mission and the drone suddenly land on the ground or descend to hit a moving platform.  
Like the below picture:  
The AUTO.LAND mode happens in the half way.

 ![image](https://discuss.px4.io/uploads/default/original/2X/0/0f09b8140807ce1812cbdcebb32f5fed3cd81b3b.png)  
Thanks again : )

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