Project & Support Moved

This project and it's continued support have moved to Josef Prusa's https://www.printables.com/. I will no longer be updating items here, and may not respond to comments or questions.

Please visit the link below for the latest version:
https://www.printables.com/model/157133-phantom-4-pro-battery-cooler

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Summary

A simple cooler to force air through a Phantom 4 Pro battery. In my testing, this cooler will take a hot post-flight battery to cool enough to charge in about 1 minute if the ambient temperature is around 75-80 degrees Fahrenheit.

It is powered using a 12V car outlet, or via any other 12V power source. It can also be run off 5V but fan speed (and cooling speed as a result) will be significantly slower.

##Hardware Needed:

2 - 40mm x 28mm Fan

https://www.amazon.com/Swellder-Sunon-GM1204PQV1-8A-cooling-9200RPM/dp/B00XDZFL5S?keywords=sunon+maglev+fan+40x28mm&qid=1561223650&s=gateway&sr=8-4&linkCode=sl1&tag=loidoltdesign-20&linkId=997076a59f915a1a211c37924ec1839c&language=en_US&ref_=as_li_ss_tl

(The above Sunon Maglev server fans are expensive but they do the job as you would hardly believe incredible little fans.)

2 - 40mm Fan Grills (optional)

https://www.amazon.com/Swellder-Sunon-GM1204PQV1-8A-cooling-9200RPM/dp/B00XDZFL5S?keywords=sunon+maglev+fan+40x28mm&qid=1561223650&s=gateway&sr=8-4&linkCode=sl1&tag=loidoltdesign-20&linkId=997076a59f915a1a211c37924ec1839c&language=en_US&ref_=as_li_ss_tl

1 - Mini Toggle Switch

https://www.amazon.com/Swellder-Sunon-GM1204PQV1-8A-cooling-9200RPM/dp/B00XDZFL5S?keywords=sunon+maglev+fan+40x28mm&qid=1561223650&s=gateway&sr=8-4&linkCode=sl1&tag=loidoltdesign-20&linkId=997076a59f915a1a211c37924ec1839c&language=en_US&ref_=as_li_ss_tl

1 - DC Power Jack

https://www.amazon.com/Swellder-Sunon-GM1204PQV1-8A-cooling-9200RPM/dp/B00XDZFL5S?keywords=sunon+maglev+fan+40x28mm&qid=1561223650&s=gateway&sr=8-4&linkCode=sl1&tag=loidoltdesign-20&linkId=997076a59f915a1a211c37924ec1839c&language=en_US&ref_=as_li_ss_tl

4 - M3 x 40mm Machine Screws