Macbook Pro 15'' Non Removable Battery: Keep it charging all day

Hi Abhishek,

I believe this is one of the features of the new Macbook Pro batteries - that they are charged intelligently.

http://www.apple.com/macbookpro/battery/

Although it's true that Lithium Polymer batteries should not be stored in a fully charged state if they're not going to be left unused for months at a time, leaving your computer plugged in for 'long' periods of time (days) shouldn't cause you any problems.

Hope this helps 🙂

Cheers,


David

All modern (in fact... even not-so-modern) notebooks intelligently maintain the battery charge. While the new MacBook Pros have non-removable batteries... prior to that, the machines with removable batteries would run at nearly half the speed if used with the battery removed:

http://support.apple.com/kb/ht2332

So even if you could remove the battery, apart from not being necessary, it would significantly impact performance.

Abhishek Shah wrote:
But on my old Computer I used to remove the battery and let it run. With my new Macbook Pro with non removable battery I feel that the battery life will quickly die if I do the same.

There is no problem as long as you use the battery once in a while and also keep the battery area from becoming too hot. High heat is the real enemy of the life of these batteries, not cycling habits.

I heard a rumor that the Mac had a new system that would shut off power access to the Battery when it was fully charged, allowing the battery to have a longer life.

Apple has done a number of things to try and extend battery life, but that's not one of them. All lithium-ion chargers made by any brand are required to stop charging at full charge. Overcharging a lithium-ion battery is a serious safety hazard.

If you want to make your battery last as long as possible, there are some tips at this link.