Thanks Ken .. I'll grab one of those.. I searched a bit and found this.
http://www.master-instruments.com.au...ghter_faq.html
Yeah that arlec charger is strange cattle Simon .. I was given it almost new .. for good reason

.. It sometimes without popping its fuse
or stopping makeing battery charger sounds just refuses to put any charge in a battery.. My son warned me .. but I still (not) charged a battery and dragged it way out bush to find it ..
flat