When Apple at 5th. Ave. NY. refused to replace my bloated-out battery for the second time in two and a half years, I dissected it and found that only one cell of six inside was bloated and removed it. It works perfectly now. So saved $150 in the bargain. Just about 15 minutes less battery capacity.
as the battery gets older, that percentage value will increase. I have a nearly toasted battery with around 400 recharge cycles, my laptop dies at about an 87% level.
i’m no battery engineer, but the chip in the battery is used for the digital readout sent to the computer. it is calibrated for a specific capacity. After changing that capacity the digital readout is now useless (or just really off), you can’t fix it until you put another cell back in. sounds stupid, but thats whats going on.
bpanther can you provide the dimensions of a non-damaged cell please?
Sorry… below comment…
Contd from above comment…It’s in very tiny encapsulated plastic bubble in a loop connected to the left electrode of the excised battery. So I soldered that back on the remaining single battery. But same problem. WOULD LIKE INPUT ON THIS PLEASE. THANKS. So kindly plug-in at 40% and all is well.Thanks.
OK Guys… just found out that, the battery goes COMPLETELY DEAD at 33% charge remaining ! The MacBook Pro then shuts down instantly. Tried this 3 times and all happened at 33% charge remaining as seen in the menu-bar. Can any LI-POL engineers explain this??? I even discovered a tiny IC/CAPACITOR/TRANSISTOR/RESISTOR don’t know which. contd…