On 8 Jan 2009, at 01:21, xponentrob wrote: > If one wants to make direct comparisons of a type of batteries > capabilities, > one has to go no farther than a hardware store or Lowes or Home Depot. > I've been using cordless drills for a couple of decades. They were > once > using Ni-Cad batteries, until the Nimh batteries swallowed the > market. The > Ni-Cad and Nimh battery packs were pretty much the same size and > performed > about the same, only Nimh had a slight edge in most categories. In > the last > 2 years Li-ion batteries have begun to take over the market. The > battery > packs are smaller and lighter, but deliver more power and torque and > do it > for longer with a shorter recharge time.
Cadmium is very nasty stuff and was ending up in landfills when people disposed of batteries. NiCd batteries were banned in Europe because of that although I think power tools got an exemption tied to manufacturers providing a recycling programme that pays a huge 'deposit' back on returned batteries. Poison Maru -- William T Goodall Mail : [email protected] Web : http://www.wtgab.demon.co.uk Blog : http://radio.weblogs.com/0111221/ "I embraced OS X as soon as it was available and have never looked back." - Neal Stephenson _______________________________________________ http://www.mccmedia.com/mailman/listinfo/brin-l
