RedLED
Flashlight Enthusiast
Had the batteries get low on my U2, and it went into a wild strobe.
It was kind of cool. Has anyone else had this happen?
Best,
RedLed
It was kind of cool. Has anyone else had this happen?
Best,
RedLed
U2 Strobe Effect
- Thread starter RedLED
- Start date
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iced_theater
Enlightened
I haven't yet run down my first set of batteries, so can't say as of yet. Good to know it might do that though 
Ty_Bower
Flashlight Enthusiast
Yep, they do that. Mine does it with nearly dead primary cells, but it doesn't do it with a depleted rechargeable li-ion. Go figure.
I stuck a pair of mostly dead batteries from my Spy into the U2 and it strobed on level 5 and 6 (the highest levels) but not the lower levels. I guess this is a good feature. On the spy level 4,5, and 6 were all the same brightness. If you didn't notice they were all the same you might flip on the light and think the batteries were good. Of course on the spy you have to go through 4 and 5 to get to 6 so its kind of obvious.
Yeah, that's a low battery issue. Might also be a contact problem. Always vanishes with new batteries for me.
It seems to be more common with BatteryStation CR123As, maybe because they drop lower in voltage during discharge, compared to SF CR123As.
It seems to be more common with BatteryStation CR123As, maybe because they drop lower in voltage during discharge, compared to SF CR123As.
Yup Battery station brand here. One seemed to have a lot more charge left than the other when I stuck them in the HDS to kill them off.
scott.cr
Flashlight Enthusiast
I JUST finished the first set of cells in my U2, and it strobed on all levels except 1 and 2. That was with Surefire cells. I checked their open-circuit voltage and it was 2.90v, so I'll have to do some further load-testing of the cells to see if they're really dead or if there's a contact issue with my U2.
greenLED
Flashaholic
I had this happen with my first U2; battery brand wouldn't matter.
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