im after a new battery for my sony ericsson c905 as mine dunt seem to hold its charge for a long time as it is always forever getin recharged due to the battery getting flat from using the built in wifi.

now i found a gold (not real gold) batteries on ebay for a tenner with a bigger charge capacity.

has anyone had or tried one of these?

http://cgi.ebay.co.uk/GOLD-BST-38-BATTERY-SONY-ERICSSON-Z770i-C902-C905-/190345105076?cmd=ViewItem&pt=UK_MobilePhones_MobilePhoneAccessories_MobilePh oneBatteries&hash=item2c5173ceb4