apple battery charger and batteries

[jetjaguar]

I recently bought the apple battery charger with the AA batteries and they dont seem to charge all the way. I charged my first set and when it said it was done I put it in my mouse and it shows 81%. What gives? Are these really crappy?

 

[clarkn]

Mate you may have a dodgy set. I have charged and re charged mine a few times now. I have the mouse, keyboard and trackpad for my iMac and no dramas at all.

 

[opinio]

I recently bought the apple battery charger with the AA batteries and they dont seem to charge all the way. I charged my first set and when it said it was done I put it in my mouse and it shows 81%. What gives? Are these really crappy?

There is nothing wrong with them. There is a similar issue with Mobee products. Rechargeable batteries only have 1.2 volts so they never appear as 100% in OS X even when they are fully charged. 75-85% is 100% on a 1.2v rechargeable AA. Normal AAs are 1.5v. That is why a lot of digital cameras give you the option to choose what AA batteries you use (if they use AA) because the voltage is slightly different.

Basically it is an issue with OS X. Well, not so much an issue, but OS X cannot distinguish between 1.2v rechargeables and 1.5v normal AAs.