Connectors for battery
I have looked in all the sites / companys i order from, all i can find is this in the link below, i use small family companys, but you could look in to Steve's suggestion, or try farrnel or RS electronics, my idea is to remove the old pcb plug, its a plug as it has pins, and solder new connectors on what are known as flying leads, you could do this easy, not a lot of cost, and if the male part of the connection has to be on the board bond after key up of the plastic on to the board, bond with epoxy resin, then solder short leads in place, a solder pump will help if you have large solder joints to remove.
Above all mark with a pen which is live and neutral if you un solder the old connector, make a coffee, you would be all done and tidy in twenty minutes or so.
If not and you want the exact size, then its more searching, trouble is companys tender to so many manufacturers that there are many sizes, and for different country's, standards in size vary greatly.Dave.
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PS link below. I will post there sites, two anyway, there are more if you look them up, an email to one or more of the smaller companys might produce some results. First link my idea.
http://www.maplin.co.uk/battery-connectors-1397
http://www.esr.co.uk/
http://www.cricklewoodelectronics.com/Cricklewood/home.php
One i forgot, but another option, they start at 2 pole, live / neutral.
http://www.rapidonline.com/Cables-Connectors/2-54mm-Pitch-crimp-PCB-connectors-200055