Hi Paul With a tri-lobe screwdriver (available for £3 on ebay) you can very easily replace the battery yourself. It'll void the warranty but if it's 21months old then you won't have warranty protection left anyway. If you've got applecare then it's all covered.
It's just 8 screws to remove the lower metal plate of the laptop, then 2 or 3 tri-lobe screws, disconnect the battery, put the new one in and reassemble. You'll need to calibrate the battery but that just entails charging it up to 100%, letting it run right down to 0% and leaving it for a further 2-4 hours, then charge back up to 100% and you're good to go. You can get the batteries on ebay, just search for the part number that's on the current battery. Regards Sam MacAmbulance Providing affordable Apple & PC services Sam Mullen 07747 778022 http://www.macambulance.co.uk [email protected] On 24 Nov 2012, at 16:19, Paul Howard <[email protected]> wrote: > Hi all, > > I checked the battery status on my macbook pro last week and it seemed fine > (about 5% down on new). > > Last night I checked and coconutBattery was showing that it now only had a > capacity of about 400 mAh compared to the standard 6900 mAh of a new battery. > > I tried resetting the pram and restarting. No change. > > So this morning I let the battery drain fully and left it unplugged for about > 6 hours to fully drain the battery. > > On restarting it just now coconutBattery is now showing that it has a > capacity of -1 mAh. So basically it won't hold a charge at all. > > The macbook is 21 months old and is showing as having 7 battery load cycles. > > Is this likely to be a software issue or is my battery really dead. If it is > dead do I need to take it into an Apple store to get it replaced or could an > Apple authorised repair person do the job? > > Thanks, > > > > -- > Paul Howard > > web: phoward.com / phowardimages.co.uk / ispauldeadyet.com | twitter: > @phowardcom / @phowardimages > > tel (UK): +44 (0)1293 738158 | mobile (UK): +44 (0)7903 505153 | tel > (US) : +1 251 243 0058 > > -- > You received this message because you are subscribed to the Google Groups > "Sussex Mac User Group" group. > To post to this group, send an email to [email protected]. > To unsubscribe from this group, send email to > [email protected]. > For more options, visit this group at > http://groups.google.com/group/smug?hl=en-GB. -- You received this message because you are subscribed to the Google Groups "Sussex Mac User Group" group. To post to this group, send an email to [email protected]. To unsubscribe from this group, send email to [email protected]. For more options, visit this group at http://groups.google.com/group/smug?hl=en-GB.
