Date   : Tue, 14 Aug 2007 23:14:59 +0100
From   : zeem.uk@... (Alex Taylor)
Subject: Master battery packs

On 14/08/07, Eelco Huininga <eelco@...> wrote:

> Wouldn't it be possible to replace the batteries with NiCd's?

It ought to be possible, although the voltage of three normal NiCd
cells in series would be 3.6V, not 4.5V. This could be increased if
necessary by adding a fourth cell to make it 4.8v, or using 1.5V cells
which I have seen available somewhere.

Whether these could be charged by the Master when switched on is
another matter. In my (limited) knowledge, a 4.5V NiCd battery pack
would need 6 or 7V to charge, so some regulation circuitry would be
required. It should be possible but with my limited knowledge of
electronics, I'll leave discussion of the details to the experts...

-- 
Alex Taylor