Hi all,
    over the last few months the time that a full charge lasts in my 4
year old NX70 has been dropping and is now down to not much more than
30 minutes of continual use.  So I suspect it's time to replace the
battery - does that seem the logical conclusion?
I've been poking around on the web and found that a replacement will
set me back in the region of 40 quid.  However, I've also seen
offerings of batteries from Hong Kong can be had for less than a
tenner.  So I'm wondering what the catch is.  I'd imagine that they're
not exactly genuine parts, but is that necessarily a problem?
Any advice gratefully received!

Cheers,
    Marlon