I was thinking about purchasing one from ebay (similar design but different brand). Check ebay out, there are a few out there that are less than $10 US. I'm hesitant about purchasing one; the battery quality in the charger might be low and might cause damage ie. works for only a month before battery dies or excess current due to faulty wiring. Though for the given price it's not too bad. I might order one up soon, but going to find some reviews before doing so. In my opinion, its worth it as long as I can get a year years use out of it which I think it will.