P1 short runtime with rechargeables.

vtt · Dec 9, 2006

the setup in the pic , 3.6v 880mah cells and 3.0v 800mah will only run
my P1 for 28min / 40min respectively.

what is wrong ?
have i made the wrong pick with these ?

Casual Flashlight User · Dec 9, 2006

Runtime graphs - courtesy of Chevrofreak

https://www.candlepowerforums.com/threads/119230

CFU

meeshu · Dec 9, 2006

My runtimes:

https://www.candlepowerforums.com/threads/134533

The 900mAh Tenergy battery gave me around 45 minutes runtime.

The short runtime with rechargeable batteries is not unexpected, since the rechargeable batteries have less capacity (mAh) than primary batteries (which have typical capacity around 1400mAh).

22hornet · Dec 9, 2006

My P1 does about 45 minutes with WAMA RCR123A 600mAh 3.0V.
My Surefire E1L has about the same runtime with these cells.

Joris

light_emitting_dude · Dec 9, 2006

As soon as I get my P-1 back (dropped and stopped working) I will try it with RCR123A'S. Just got some of these batts from lighthound. I am interested in how much brighter it will be.

LightBright · Dec 9, 2006

vtt - I think the 3.6V cells are driving the P1 with a LOT more current than the 3.0v cells - if they are really holding at 3.6V under load, the P1 regulator is Not regulating and the LED is running "direct drive". The 3.6v cell should be noticeably brighter than the 3.0V cells

Concept · Dec 10, 2006

I have got to admit 28 mins with a 880ma 3.6V rcr does not sound quite long enough. I would have thought you would have got at least another 15 mins or so?

LED61 · Dec 10, 2006

I had the same problem with my batterystation 3.6 RCR's. I think friends, this has to do with the light shutting off with too much heat. Notice the good runtimes other fellows have been getting involve 3.0 V RCR's.

vtt · Dec 10, 2006

thanks for the help , i'll try different cells and see how they perform.

P1 short runtime with rechargeables.

vtt

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