Helmet cam questions

[TROLLCAT]

Ride for 3 to 5 days batterys
how cold -10 to -20 C
talking about the three on the home page
movies would be
already killed one videio cam to cold
real world advice please

 

[aircanam]

Lithium batteries are what you need, normal AA don't work worth a chit. I ran lithiums for 2-3 days no problem, cheaped out and tried regular AA, think they worked for about 20 min. You may still have problems with lithiums below -20 though

 

[catmando]

Here is some real world advise........yesterday it was minus 18 or better,I had my helmit cam mounted on the nose of my sled,I warmed up the cheap double a radio shack batteries inj my pocket and changed them pretty much every HOUR or so revolving three set through my nice warm pocket,every time I put a set in it was good for the whole hour without removing my camera from the nose of the sled and Im guessing I could have gort more time out of each set but no sense pushing it.This is yesterday from my cam!
If you can warm em up now and then,use any batteries!
[media]http://www.youtube.com/watch?v=HtKHVZjZN1s[/media]

 

[teeroy]

Lithium batteries are what you need, normal AA don't work worth a chit. I ran lithiums for 2-3 days no problem, cheaped out and tried regular AA, think they worked for about 20 min. You may still have problems with lithiums below -20 though

lithium batteries are not effected by cold. their power output stays linear until they die