Maglite mini 2AAA undervoltage lockout?

[sbslider]

I recently purchased the subject light, SP32016. I performed a run time test with eneloops today, and noticed around 3 hours the light started flashing. I was not paying close attention to the brightness, but it did not seem that it had dimmed much if any compared to fresh batteries. When I removed the batteries they were both slightly above 1.0V and rising, so they were obviously done.

I assumed the light would not be well regulated, but perhaps it is, and has some sort of under voltage lockout that I ran up against? I tried searching but so far have not come up with any one that suggests either of my assumptions is correct. Any help appreciated.

 

[xxo]

Mine does that sometimes when the batteries die, not sure exactly what causes the blinking...could be that the dead batts don't have enough power to run the LED/circuitry and briefly turns off and with the load off the cells their Voltage rebounds and briefly power the LED before blinking off again.

 

[sbslider]

I suspect you are right. I have an email into Maglite to see what they say about it as well.

I measured the tailcap current with several pairs of batteries at different voltages and I would say it appears that it does not appear to regulate. The light likely dims as the battery voltage drops.

 

[xxo]

I think this is a regulated light that has a timed step down like most other LED Mags.