In article
,
1501 wrote:
One thing to be aware of when using rechargeable batteries where the
kit may have been designed for dry cells is the probability/
possibility of batteries appearing flat prematurely. There isn't a
huge difference in the voltage generated by a flat dry cell and that
of a half charged NiCd or NiMH cell.

Rechargeables tend to have a flatter voltage discharge curve than
alkalines.

Many of the guys running RC planes and boats run the receivers on 5
rechargeable cells (at 1.2V each) instead of 4 dry cells (at 1.5V
each) to overcome this problem.

It really depends on design. If a device needs a constant voltage supply
it has likely got a PS which will work just fine with the lower voltage.

With something like a model plane the flying time might be more important
than saving money by changing rechargeables more often than alkaline. Most
devices have a built in battery container so don't offer an easy option of
using an extra cell.

--
*Local Area Network in Australia : The LAN down under*

Dave Plowman London SW
To e-mail, change noise into sound.