Squeezing every block you can out of it? I don't blame you...I'll try to stop by tomorrow for a look-see at your new one. You're probably wanting to keep it in 'mint' condition.
My old one has developed some problems over the summer, but it's still cranking. The pot holes took a toll on it I'm sure and it's pretty old in power chair years. Decided to take some pressure off of it, but still gonna keep it going for as long as possible. I'm not very concerned in keeping the new one in "mint" condition. I believe in using the china........not sticking it behind glass doors to look at. Gotta few tweaks to make yet on it before using it as my primary. Wrong seat back was put on it and new (right) one is in the mail. Plus there's currently a software patch that's needed before it's safe and to avoid running through a wall or over a pedestrian. All in due time.