Monthly Archives: December 2011
Rudolph the Red Nosed Volkswagen
Posted by Jaran
on 2011/12/26
1 comment
More power: extending the battery life of a Led Lenser H7 LED head lamp
Posted by Jaran
on 2011/12/20
3 comments
While the Led Lenser H7 is bright enough for most of my purposes its runtime on the highest level is a bit low. That’s no surprise as it draws up to 800mA from only 3 AAA batteries.
As can be seen on the picture I modified the lamp to accept an optional external power source, in this case another 3 AA cells which quadruple the runtime.
The additional batteries can be worn comfortably in a belt holder.
Recent Comments