This thing is V1 of the belt mount mini cooler fan
It clips itself on any belt.
-Can be mounted on your side, or on your back
-The 9V battery is a Lithium-Ion battery (1000mAh), rechargeable by USB. It can last 8hours+
-2 belts clips are provided: 1 for the belt at the back of the device. 1 is for the back of the fan duct as a solution to grab your t-shirt and to make sure the fan duct stays below it without the tshirt closing the blower intake.
By default the 12V blower can start moving at about 4V but the airflow will be very limited.
With the 9V battery the blower fan will have it's speed reduced but will stay silent and will still provide a decent airflow.
The LTC1871 DC-DC booster on the side, allows to adjust and increase the output voltage .
I'm using 15V as the blower i'm using seems to handle it and provide max airflow.
Above this voltage you might damage the Blower fan.
Compatible with any belt
Compatible with any 9V battery.
I could find a 1000mAh USB rechargable lithium-ion battery that will allow the fan to run at least 8-10 hours non stop.
Working great in areas with no wind during summer such as non air conditioned trains, sharks etc....
- 2019.07.15 - added Belt Clip for fan duct dedicated to maintining your tshirt over the duct
The Fan Duct has also been updated to support the clip
- 2019.07.14 - Original Post
Enjoy hot summer!
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