yes - i know two ways - but both requre some kind of special hardware and are not for free
1, is a li-po charger for rc-cars(boats,planes) - those chargers are able to tell you exactly the mAh you have in a fully charged battery
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2, an astratec battery tester - normally used in any nokia store - they are sometimes on ebay for around 100-150$
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2, an [http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=230450210580&ru=http%3A%2F%2Fshop.ebay.com%3A80%2F%3F_from%3DR40%26_trksid%3Dp3907.m570.l1313%26_nkw%3D230450210580%26_sacat%3DSee-All-Categories%26_fvi%3D1&_rdc=1|astratec] battery tester - normally used in any nokia store - they are sometimes on ebay for around 100-150$
there are surely other ways too - but i never used other stuff than those 2 i mentioned
yes - i know two ways - but both requre some kind of special hardware and are not for free
1, is a li-po charger for rc-cars(boats,planes) - those chargers are able to tell you exactly the mAh you have in a fully charged battery
2, an astratec battery tester - normally used in any nokia store - they are sometimes on ebay for around 100-150$
there are surely other ways too - but i never used other stuff than those 2 i mentioned