"John Woodgate" wrote in message
...
I read in sci.electronics.design that René wrote
(in ) about 'PC CPU fan', on
Tue, 4 Oct 2005:

And now I will go on with my design of a battery charger that cuts off the
charging process based on weight increase of a charged pack.

Don't forget to correct for the buoyancy of the evolved hydrogen.

Once it has evolved, does it turn into Helium? Have to be careful about
fusing.

Regards
Ian