d8veh said:Freezing the battery will damage the cells inside, so I wouldn't do that unless you know that what's inside is already scrap.
A hairdryer might not be hot enough. Try it and see. The parts are well-glued, so you need quite s lot of force to separate the end-caps, and you'll end up with lots of screwdriver marks.
He will not know for sure until he gets it open.....d8veh said:?..... Which ones does OP have in his A3B battery then?