Dusky
You have one of the newer ones. My son bought one of the first models that came out 4 or 5 years ago. The battery will not hold a charge anymoe and the sad news is that a replace battery cose almost ss much as the whold machine did. In the begining my unit cost $100 to buy and the batteries for it also cost $100 so it just sits in a dark corner gathering dust.
Bill