I was putting a front wheel on last night when someone "helpfully" tried to grab the spring and after 25 minutes with a light and a magnet I'm giving up. Maybe I'll try the sock and vacuum idea but I'm not hopeful.
So, anyone have ideas on where to get a replacement spring?
I'm guessing this is an SE zip-zap. The battery is the 2.4V 70 mAh one and the descriptions I've read of the charger/controller sound right.