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GUE Instructor
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One thing to be aware of, I have been told that their degradation curve is very steep, they go from working to not working very quickly.

Don't know how true it is, one of the YD boffins will help here, but it has led me to change mine when it drops below 3.4v

Juz
 

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Mad as a Haddock
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2,206 Posts
Maplin sell them, if there's one on your high street it might be easier.

They do have an alarmingly steep discharge characteristic. I was on a dive once and all seemed well, 3.4V before I set off, 45minutes later, blank screen and I don't run with my backlight on much. So they don't gradually drop from 3.6 to 1.4 before lights out.

I've gone back to 1.4Vs.

MM
 

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Dunno really........ thinking about it
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1,585 Posts
I have found some halfway - 1.7v - lithiums in Jessops

Much cheaper than the 3.2 v offerings at IIRC £6 for 4

Seem to last well - and to drop to 1,5 before bouncing back to 1.7. This running light on when wet.
 
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