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Phoebus, RC takes up far more of my time than lasers. My passion too!

Phoebus, I have torn down several laptop batteries and some have even 10 cells in them. Even in a old battery that has failed, after testing the cells and recharging them usually only one or two cells are bad and the rest function at full capacity.

Hazer, The Panasonic's are great, but as far as I know no Panasonic's have a protection circuit built in. Just don't drain it too far before recharging it or it may damage it and it is possible that you may not be able to recharge it. There are a few companies that use the Panasonic and add a...

Hazer, I built a M-140 from DTR and a 1.5 amp host kit from Survival. As tested on my Laserbee it is 1.48 Mw. My only wish is that the beam divergence was tighter. It is not bad but I wish it was smaller. My 500Mw 638nm from DTR, and a 1.5 amp host C-6 from survival is good for 750Mw...

You can't go wrong with Survival Laser. Gary is a first class guy with top quality products and super fast shipping. Good luck with your build.