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Products => Thermal Imaging => Topic started by: giovannirat on January 19, 2021, 09:36:06 am

Title: Flir Ex charger
Post by: giovannirat on January 19, 2021, 09:36:06 am

I build a simple charger for Flir Ex Cameras, because I didn't like to charge the battery via camera USB slot and the original external charger was way to expensive.

I used this board ( https://www.aliexpress.com/item/32824686370.html?spm=a2g0s.8937460.0.0.3a7b2e0en94uPT (https://www.aliexpress.com/item/32824686370.html?spm=a2g0s.8937460.0.0.3a7b2e0en94uPT) ) with a few changes:
(http://[attach=1])

1) In order to use the NTC temperatur control of the battery I changed the value of R5= 33k and R6=5,1k

2) Instead of D1 (red, Charging) and D2 (green, Full) LED I used external LED's with an appropriate resistor (R2,R3)

3) The battery contacts were a bit tricky. I used two of these ( https://www.aliexpress.com/item/32590779303.html?spm=a2g0s.9042311.0.0.27424c4dZbYfzV (https://www.aliexpress.com/item/32590779303.html?spm=a2g0s.9042311.0.0.27424c4dZbYfzV) or  https://www.aliexpress.com/item/32770622186.html?spm=a2g0s.9042311.0.0.27424c4doKWQgu (https://www.aliexpress.com/item/32770622186.html?spm=a2g0s.9042311.0.0.27424c4doKWQgu) )  in parallel in a 3D printed case. Depending on the accuracy of your 3D printer this was the most annoying part, because the contacts are a bit short... You need a tight fit of the battery in the case.

Title: Re: Flir Ex charger
Post by: Fraser on January 19, 2021, 02:37:07 pm

Nice little charger  :-+

I own the FLIR desktop charger and, though neat, it is certainly very expensive. I applaud anyone who designs cheaper alternatives to the official accessories and who is kind enough to share their design  :clap:

Fraser