A question about electrical input and output?

It probably works but it could be making the charger run hot or could be overcharging the battery. Just spend a few bucks on the right one. Something like......a href="http://cgi.ebay.com/AC-100V-240V-Converter-Adapter-DC-7-5V-1A-Power-Supply-/220782142893?pt=LH_DefaultDomain_0&hash=item3367a425ad" rel="nofollow"http://cgi.ebay.com/AC-100V-240V-Convert…/a