Is there a way to keep people from stealing it? They leave our wheelchairs in the waiting room during PT and someone might like it too much and ride off with it. How did you deal with that? Take the battery out?
People generally don't steal other people's wheelchairs. I've left a few things in that PT waiting room that's never been stolen before. There's security cameras in that building, and stealing a wheelchair from a handicap person would be a new low for any criminal. But if you want to be careful, I'd say that the battery is the most expensive part of the chair that's removable. There are two sticks of batteries on either side of the chair, and they can be easily removed. Only issue is that the batteries are pretty heavy so it's not like something you can just sling onto a backpack and walk. The easiest way to disable the chair and prevent it from being used is to just take out the joystick controller. It's really light and detachable.
Oh, and some more tips: Don't keep your feet and toes in front of the foot rest when you're close to a wall. There have been a few times when I've squished my toes between the foot rest and some wall, and it hurt a lot - like closing a door on your toe. In general, try not to drive so close to a wall, like in cases of elevators.
Also, the walker they give you isn't easy to carry around with the electric wheelchair. Instead, I have these:http://www.amazon.com/gp/product/B005I5OP6M/ref=as_li_tl?ie=UTF8&camp=1789&creative=390957&creativeASIN=B005I5OP6M&linkCode=as2&tag=lilefo-20&linkId=U52XE3CULK7MI537
I was reluctant to use these crutches because I was scared of falling over, but after using these, I don't use the walker anymore. They're much lighter than the walker (a few ounces vs 9 lbs), and they fit underneath the smart chair. I can't go up and down stairs with the walker, but I can with crutches. Also, I move a bit faster with these crutches than the walker. By putting these crutches underneath my wheelchair, they also act as bumpers to keep myself from hitting the wall with my feet, since the crutches protrude out further than your feet do.