Hello everyone
, I also came across your forum due to a red light problem with my Flir Gen 3 iOS.
I used a Torx T6 just as Fraser described, but it turns out mine is a T4 after all.
Now I had ordered a battery, which is not suitable and therefore wanted to ask where I get a new battery as quickly and cheaply as possible.
Have so far found only 450-500mAh batteries, but do not know if that fits, because the Flir standard has a 350mAh battery.
Would be happy if I get a response despite that it's been a bit longer where written here