Cree mc-e rewiring 3.5v

[amadablam]

I bought an Ultrafire wf-016 mc-e
Since it's rated up to 4.2v, can't I skip the (bad) electronics and wire it directly to my ultrafire 3.7v 18650 battery?

I ordered the wf-016, its electronics lasted about a minute, returned, replacement lasted 30 min, haven't yet returned for another I wouldn't trust.
The emitter looks like http://img.ledsmagazine.com/objects/news/5/10/25/CreeMC-E.jpg but is wired parallel: 4 pins soldered together on one side, four on another, rated So why not run directly for one on/off mode? I care more about reliability than the dimming and flash options it had (for spare bike light which can bounce around a bit.) Any danger to light or battery?

I know next to nothing about electronics which may be more than ultrafire. I believe in keep it simple..., what could be simpler than direct drive? Thinking of a spare bike light so durability's important.
If direct wiring is feasible, any advice on wiring? Thanks for your expert edification.

 

[cccpull]

I have an MTE MCE which I fried the electronics by mounting the battery backwards (it came set up with the + side to the spring :duh2:). Anyway I wired it direct and it's been working great. To be honest, I really don't miss all those modes either.

 

[FLT MEDIC]

I bought an Ultrafire wf-016 mc-e
Since it's rated up to 4.2v, can't I skip the (bad) electronics and wire it directly to my ultrafire 3.7v 18650 battery?

I ordered the wf-016, its electronics lasted about a minute, returned, replacement lasted 30 min, haven't yet returned for another I wouldn't trust.
The emitter looks like http://img.ledsmagazine.com/objects/news/5/10/25/CreeMC-E.jpg but is wired parallel: 4 pins soldered together on one side, four on another, rated So why not run directly for one on/off mode? I care more about reliability than the dimming and flash options it had (for spare bike light which can bounce around a bit.) Any danger to light or battery?

I know next to nothing about electronics which may be more than ultrafire. I believe in keep it simple..., what could be simpler than direct drive? Thinking of a spare bike light so durability's important.
If direct wiring is feasible, any advice on wiring? Thanks for your expert edification.

You can wire it as direct drive, just make sure you don't use a battery with more than 4.2v fully charged.