On lithium ion

Stuart Lamble said:

For those who haven't read it before:
http://www.dansdata.com/gz042.htm
is a discourse on the problems faced by those who use Li+ batteries.

He says:

"Whether you use it hard or leave it on the shelf, there's a good chance
a LiI battery will be so degraded as to be pretty much useless after a
couple of years."

Well, my >5-year-old Palm-V still holds a decent charge, and I'm
using Li-Ions from a 1999 mobile phone for bike lights. None
have had heavy use.

Stuart Lamble said:

For those who haven't read it before:
http://www.dansdata.com/gz042.htm
is a discourse on the problems faced by those who use Li+ batteries.

I bought a sony camcorder in 96 and after heavy use the Li+ battery
finally died(actually it still worked but only for about 20-30 minutes)
in 2003. I make my own paks from second hand laptop batteries to power
the lights on my mtb and I haven't had any problems. Apart from
somebody stealing me bike lights and all.