DJI Phantom 4 Series Battery Cooler.
thingiverse
Here is a cooler for your Phantom 4 (series) Batteries! After a summer flight, put immediately your battery in this case to cool it up! Add 2x 40mm Fans on both faces: _ The bottom fan turned in _ The upper fan turned out for air extraction Most of these fans are available in 5V or 12V I used it in my car during long drone work where batteries gets hard time! You can also charge the battery in the same time with the hole at the bottom. Remember to always cool your batteries 30min to 1h before the next charge!
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