17650 in E2d

[jaybiz32]

I recently put a 17650 in an E2D only to have the cell become very hot. Any idea what hapended. I dont believe the cell was protected.
Also Why would one use one 17650(3.7 total volts) instead of 2 r123a cells(7.4) volts in an incan. In the case of my E@D the light outpu was much brighter with the 2 r123a cells.

 

[nuggett]

The 17650 will work properly with a lumensfactory bulb...eo4 I think
The stock e2d bulb is meant for 2x123 cells. I dont know why your 17670 woould get hot, but do what I did and throw away all your unprotected cells and get protected ones.

 

[Bullzeyebill]

You can send all of your unprotected LiIon's to me. PM if interested. I would pay postage.

Bill

 

[jaybiz32]

I has te EO4 bulb in from lumens factory the output was much reduced although It makes sense that the voltage decreaed from 7.4 to 3.7. My question is why would one choose a single 3.7 volt cell for lighs that normally take 7.4 volts?

 

[Bullzeyebill]

Not sure why 17650 became hot, though the bulb you are using is pulling a lot of current from the 17650, sort of over discharging it.

It does not make sense to use a 3.7 LiIon. You should be using two 3.7 LiIon's. Two 3.7 nominal voltage LiIon's can peak out at 8.4 volts, fully charged. Your bulb is apparently designed for two LiIon's.

Bill

 

[fivemega]

My question is why would one choose a single 3.7 volt cell for lighs that normally take 7.4 volts?

You choose single 3.7 volt cell if your bulb is 3.7 volt like Strion with this socket or EO-E1R.

 

[ampdude]

The 17670 is also good for LED heads, since it has more capacity then two RCR123A's. But for incan purposes, two RCR's will be brighter and more efficient.