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[golden valley const.]

Seems to me like 20 cells of just about any type will make a pretty powerful tool.  I don't own the 36v line but every year when I get a job that requires more power than I wish I needed (I prefer lighter work), I contemplate jumping into 36-volt again.  I've never been concerned with cycle life, I know plumbers who use 10 full cycles a week, but I average about 100 per year so I'm more concerned with calendar life.

[burlguy]

 I figured I better follow up on this.... The new batteries absolutely suck. I have enough of them that it doesnt matter I just pop another one in place. I find that I am charging them twice as much as my old batteries that have nearly 5 years of use. I will just warranty them out every year, as I dont think that they will make it. What a shame leaving behind the a123 cells. I am sure it just wasnt cost effective to have batteries that last forever. If I had only bought a dozen of them back in the day.

[framer]

i havent used mine in a while, and when i went to use some of the 36 volt tools, they acted funny with the newer cells.  like low on power.  not happy with them either.

[The Red Baron]

I figured I better follow up on this.... The new batteries absolutely suck. I have enough of them that it doesnt matter I just pop another one in place. I find that I am charging them twice as much as my old batteries that have nearly 5 years of use. I will just warranty them out every year, as I dont think that they will make it. What a shame leaving behind the a123 cells. I am sure it just wasnt cost effective to have batteries that last forever. If I had only bought a dozen of them back in the day.

A123Systems after 2 years of life

2.3 Ah capacity tests OK

internal cell resistance of 15 mohm to 33 mohm!

compromised power drill!

NICD forever!

regards