Mustache clipper & battery

I purchased this razor about 12-14 months ago. Initially, it was great. I could shave 3-4 days on a single charge. The idea of rinsing the blades off made this particular razor even more attractive.

However, about three months ago, the mustache clipper stopped working. Last month, I was running late for work and took the razor with me. I was able to shave about 1/3 of my face when the battery died. It had been plugged in for at least two days before then. Now, I can only use it when it is plugged in.

This past week, the blades started to dull. I was contemplating replacing the blades but am unsure as to how long the razor will last. Instead, I will buy another Norelco.