For everything you could possibly want to know about portable power, I have found?
CADEX to be THE authoritative source ...
Their book, "Batteries in a Portable World," is a great reference work - and there is a Kindle edition!
Instead of comparing NiCad and NiMH - more and more HTs are shipping with Lithium-Ion packs.?
And hams everywhere want Li-Ion for their FT-60 radios. I sure don't know why ...
-Properly maintained, NiMH will give you about 1,000 complete discharge-charge cycles. Li-Ion? About 350.
-Li-Ion does work better in frigid weather. With a raise of hands, how many of us are living in Antarctica?
-Li-Ion weighs a little less than NiMH counterparts. Well ... Just don't order super-sized fries with your next hamburger order ...
-And Li-Ion will hold its charge - un-used - longer than NiMH. But I, personally, don't charge up my radios to set them aside for six months, un-used ...
-And, if you want the maximum life from Li-Ion packs, you need to invest in a charger for them.
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Clint Bradford K6LCS
http//www.work-sat.com
Clint Bradford