thanks guys, good to see ya all.
I'm glad i didn't miss anything in Groove 2 manual.
It is perfect for pen sized lasers up to 500mA So reds and Violets
and "conservative" (ONLY ~350mW !) blue pens
) when used with two 3,7V Li-ions !!
I wish there was higher capacity 10440 battery out there I have only AW 350mAh. I know there are ultrafire 500mAh, but i don't trust their performance over AW