Overdrive
Newly Enlightened
- Joined
- Jun 5, 2008
- Messages
- 11
The spring in the photograph appears to be the perfect size,
tension and it's gold too!
The spring maintains constant battery contact under conditions
where vibration is present.
It also provides excellent mechanical shock protection for the
driver board and battery(s) should the flashlight fall to the ground
headfirst. The driver board in the UltraFire C3 and other similarly
constructed electronic flashlights are easily damaged when they
fall to the ground headfirst because the cells are pressed directly
against the circuit board.
tension and it's gold too!

The spring maintains constant battery contact under conditions
where vibration is present.
It also provides excellent mechanical shock protection for the
driver board and battery(s) should the flashlight fall to the ground
headfirst. The driver board in the UltraFire C3 and other similarly
constructed electronic flashlights are easily damaged when they
fall to the ground headfirst because the cells are pressed directly
against the circuit board.
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