They tried swapping with a known good battery, clearing SMC, NVRAM. For 4 days, a few technicians were scratching their heads on why my machine completely shutdown everytime the Magsafe plug was disconnected. I requested a laptop shop (advertised as a laptop expert) to install as I do not have proper tools and the new battery did not come with any. I have the same problem with Macbookpro 10,2 Retina (13inch) Late 2012.īought a A1437 battery from an online retailer. Thank you for this post and all you guys, hope you all can fix this problem with the way i can too :) Your battery should say it have normal condition and everything should work fine. Don't worry, Let it charge like 10 minute and shutdown, Start it again. the battery status will say 'charging' maybe it also say 'replace now'. you should plug magsafe first and only! and your computer will automatically boot. Then plug magsafe adaptor without try to press power button. Then shutdown, remove magsafe, remove original battery and replace it with new one.

and check battery status, it should say 'charging'. replace battery with original one (The one that come with your computer) then Boot it, plug magsafe (power adaptor). (reset smc, pram, everything) and it useless. I done many things in this post and other. also say 'replace now'Ĭause of this problem is the new battery have no remain charge and it absolutely 0%. the battery status say 'not charging' use power adaptor as source. i bought new one from my local shop and it cannot open without plug magsafe. It took me some playing around to get it to fire up without issue (did this yesterday) - but in the end today it started fine after being shut off over night and the spike stick shut off.Found this problem and already fixed it! my computer is Macbook pro retina 15' mid 2012. In my case the battery instruction layout did not quite match the book display as I had 2 things blocking the direction it showed - and the battery was in a well - noticed one side had a gap that I could slip the battery out with my fingernail - the holder is a clip not a latch. Just did it on my 2008 Mac Pro - It can be do it yourself if you are comfortable pulling out the video card (in my case yes as I have done it before) I've gathered that this may be a switch of some kind or the power supply? Any suggestions appreciated! Thanks in advance!įind your Everything Mac book and it has instructions on replacing the internal backup battery.

Consistently, the Mac will not boot unless I cut the power to it and then power on.

When I cut the power (on my surge protector) and power back on, then the machine boots. I press the power button and then nothing.

Battery power supply for mac pro