New A1061 battery needed

iBook G3 dual USB, 700mhz 12.1" OSX 10.3.9

Terminal tells me that my current battery capacity is 413 and has had 295 cycles. Max capacity was 4400 - so 9% then!

Reasonable to assume battery is no more.

Had a quick search, and actually difficult to get hold of these without resorting to ebay and China imports.

I'm in the UK, any tips on what to look for, decent alternative brands etc.?