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  • Writer's pictureHammer Missions

How To Swap Batteries and Resume Flights in Hammer Missions

Updated: Sep 6, 2022


Hammer is an adaptive mission automation and data analysis platform for the commercial drone industry. In this tutorial, we’re going to look at how you can use Hammer to execute multi-battery missions.

To replace the battery on your drone in the middle of a mission, follow these steps:

Step 1: Trigger Go Home

When the drone’s battery reaches the low battery threshold (30% by default), it will automatically trigger a go home sequence on the drone.

You can also manually trigger a go home sequence at any point by pressing Pause > GoHome.

Press Pause > GoHome OR GoHome will automatically trigger at low battery %

Step 2: Go Home Sequence

On triggering Go Home, the drone will automatically climb to the set Go Home Height and fly to the home point in a straight line.

Step 3: Battery Swap

Land the drone and swap its battery. You’ll notice that Hammer notifies you of ‘Aircraft

Disconnected’ when the battery is taken out and ‘Aircraft Connected’ when the battery is put back in.

Step 4: Resume Mission

Once the battery has been replaced and the aircraft is now connected, simply press Play. Hammer will ask you whether you’d like to resume the previous mission or restart from scratch. Press Play > Resume to resume the mission.

Press Play > Resume after battery swap to resume the mission.

Note: If you wish to resume the mission from a different point to the last recorded point, you can open the mission settings and change the start point to where you’d like the mission to start. This is helpful in connection loss and windy scenarios where Hammer was not able to successfully record the last point of the mission.

Changing the start point to resume from a different point to the last recorded point. On resuming the mission, you’ll notice that the drone first climbs to the mission altitude and then heads over to resume / restart the mission.


And that’s it! 4 simple steps to resume your multi-battery missions. If you’d like to learn more about multi-battery missions, please get in touch with us at We look forward to hearing from you.

- The Hammer team

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