Guys I found this website from the USA.
http://users.eastlink.ca/~pspencer/n...ctrolysis.html
Very good, explains why it works, what you need and what not to use.
Even suggests using a battery with the charger which helps the process and stops the parts/ charger causing problems for the charger and part being cleaned.
When I have my donor car then the soda crystals will be well used for this little project.
Happyjo