Solarforce switch (L2-S1) dead in less than 5 minutes - faulty or operator error?

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ronparr
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Solarforce switch (L2-S1) dead in less than 5 minutes - faulty or operator error?

I just got a new solarforce host (L2m 2009 model, with extension tube), giving me enough parts to try 4xAA (eneloop) with my Solarforce 3-6V drop-in.  Everything seemed to work great and seemed to be within reasonable specifications (4xNiMH = 4.8v).  Unfortunately, after just a few minutes my switch had melted, fusing the circuit closed.  I had to unscrew the tailcap to turn the light off.  Once I did this, smell of burning/melting electronics was evident coming from the switch.

So, what do you say?  Was it too much to expect the switch to stand up to this or did I get a defective switch?

Thanks for your input!

Edited by: ronparr on 05/13/2011 - 15:19
ronparr
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My 5-mode drop-in has now become a 1-mode drop-in.  At least the one mode is high.

SashiX
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Well, fully charged NiMH usually has 1,4-1,45V. Still less than 6V Flat Stare Have you tried to open your faulty clickie?

ronparr
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SashiX wrote:

Well, fully charged NiMH usually has 1,4-1,45V. Still less than 6V Flat Stare

Thanks for your response.  I just lined them up and measured the voltage for the 4 of them together - I got ~5.2 volts.

Here's the remarkable thing:  I measured 4 amps at the tailcap!  Most people say that you can expect only 2 amps from eneloops, though Sanyo does indicate that they can discharge at up to 4 amps:  http://www.eneloop.info/home/performance-details/discharge-current.html

Don
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Eneloops can give at least 8A without sagging far in voltage. This is enough to weld open a lot of switches. I can short mine through a meter and get more than 20A (At not a lot of volts). i.e., melt the fuse in the meter.

 

IMO the switch is faulty.

 

The numbers from my light tests are always to be found here.

https://spreadsheets.google.com/ccc?key=0ApkFM37n_QnRdDU5MDNzOURjYllmZHI...