After my second Cellpro10X went belly up in less than a year, I decided I had purchased enough expensive chargers. I asked a friend for a recommendation and he told me about this little unit. It's a great little charger that has preformed brilliantly for me over the last few weeks. It's done the job every bit as well as the Cellpro at less than 20% of the cost. It's a bargain price for a great little unit.