Sofirn Q8 Pro/ additional batteries

That review is interesting as there is no stepdown, hence the short runtime. My BLF Q8 (second group buy batch) steps down at 90 seconds.

@ TheNightisAlive:

Surprisingly my Sony VTC6 have just a little positive raise to make contact on the Q8 ring. No need to trouble with button tops.

Thanks, i will keep that in mind.

Sanyo GA also have a slight button . A few less lumens but more capacity.