>> I have an old 18V battery powered drill
> The 18V is nominal. I also have a drill which had the batteries
> ruined by a rubbish charger
> The pack had 15 NiCd =3D 18V

The norm iis to rate NiCd at 1.2V/cell (as yours does woth 18V/15
cells. Down to 1V/call at endpointy. Lower if you wish to be unkind to
the pack.


> By chance I saw a James May's Toy Stories episode at the w/e
>
> http://en.wikipedia.org/wiki/James_May's_Toy_Stories#The_Great_Train_Race

Wow!

Quote:

In "Airfix", he builds a full-sized model of a Spitfire WWII fighter
plane, using the plastic moulding and assembly technique used in the
Airfix self-assembly plastic toy scale model range. In "Plasticine",
he models a full-sized garden out of the toy modelling clay
Plasticine, as an exhibit in the Chelsea Flower Show. In "Meccano", he
builds a full-sized footbridge out of the mechanical construction toy
range Meccano, to cross a canal in Liverpool. In "Scalextric", he
reconstructs the Brooklands racing circuit in full size using the
slot-car toy racing track used by the Scalextric range. In "Lego", he
builds a full-sized house in Dorking out of the Lego toy model brick
range. In "Hornby", he re-lays a railway track along 10 miles (16 km)
of a disused full-sized railway, the Tarka Trail, using the 1:76.2
scale track used in the Hornby Railways model train range. Of the six
episodes, the Hornby attempt was the only one that failed; May
revisited it in 2011 with a follow-up episode, "The Great Train Race".
A new edition, "Flight Club", focusing on an attempt to fly a balsa
wood glider across the English Channel, aired just before Christmas
2012.[5]
--=20
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