Li-Ion batteries have longer shelf-life than other
rechargeable batteries, i.e. it has very small self
discharge current.
It is not recommended to cycle charge Li-Ion (discharge
before charge).

Charging method is constant current followed by
constant voltage at 4.2V per cell. Charging voltage
must be very accurate, termination when charging
current drops below a preset minimum value (at const
voltage, that is)

You do not require sophisticated chargers to charge
Li-Ion batteries. However, you require one with
good charging voltage accuracy. I read in an article
that a 0.1V difference means >10% loss in capacity.

>Sorry for the off-topic question, but does anyone know
>how lithium-ion
>batteries(such as laptop batteries) like to be
>treated? Do they prefer to be
>kept charged, like lead-acid batteries, or do they
>prefer to be cycled
>deeply, like nickel cadmium or nickel metal hydride? I
>realize there's a
>sophisticated charge controller chip handling things,
>but if a change of my
>habits can effect the lifespan, I'm interested(I'm
>also superstitious when
>it comes to rechargeable batteries).
>
>Thanks, Bob