Does the battery adhesive soften with temperature?

Yes, But the temperature to soften the adhesive usually goes above the temperature limit for the batteries. Overheating the batteries not only seriously degrade its performance, but also can be a serious safety threat. So you either ruin the battery hot while removing them, or tear them cold while removing them. Either way the battery is barely reusable, if possible at all

Even mechanical stress during battery removal can render the battery unsafe. Apple stats clearly in the repair manual that battery removed from the iPhone should NEVER be reinstalled.

Isopropyl Alcohol (IPA) in a very high concentration (>90%, if possible ~99%) will actually do the trick.

I was already suspicious that it could work since I accidentally caused some (unimportant) adhesive patches on a 13'' Unibody MBP (which had suffered a massive wine spill) to peel off after I submerged its parts in that stuff (guess what, the MBP worked fine afterwards! ;) ).

So, *even if you're just taking out the battery to repair the trackpad*, you can safely remove the battery without causing it any damage.

Check out this video for details on the procedure: http://www.youtube.com/watch?v=pLhHSIej9...

Hi try this technique.

I just removed a macbook pro A1502 battery with a card (credit card style) coated in eucalyptus oil.. removed in 3 minutes flat! No heating or prying.

Just a thought but based on some of the above comments it might be easiest to use a piece of metal wire and two plastic handles to separate the battery from the glue (similar to [ this ] YouTube process, but maybe less painful :). This procedure with metal wire and handles is already used to separate phone LCD Screens from the glass Digitizers on iPhones. You can find this type of wire and handles on [ Amazon ] or [ Ebay ] for pretty inexpensive, just look up something like: “Molybdenum Cutting Wire and handle.

I used pro strength Goof Off and dental floss.