Good performance when he goes

After my old Makita cordless drill has given up the ghost after 7 years reliability in every situation, I have decided after a long search to purchase the DHP459RMJ. Said and done. As usual with Amazon, the screwdriver was after 2 days with me. First tests were very convincing. The 18 V power pack with 4 AH LI-IO battery was doing exactly what it should. It screwed and drilled to my complete satisfaction. To total failure. The third use for two weeks, did nothing more. I could press the power switch as I wanted, it moved no more. So what I thought exchange. The exchange went smoothly. Two days after the complaint of the friendly postman brought a new screwdriver. This was indeed the same type, but differed purely visual from its predecessor. So the torque switch was not white but labeled yellow. But his ministry has done well also this screwdriver. Til today. Because I wanted to load the enclosed second battery. This did not work because it is defective, according to display on the charger. Amazon it was not possible simply to send a replacement battery, so I again had to now convert the complete screwdriver. Yesterday came the new. Looks visually again the same as the first. Let's see if the already having first promised, what does actually. Basically, I was of the quality Makitas in every way always convinced (multiple highly reliable machines are in my possession). Therefore, I can not explain where it comes from me unreliable. For my old screwdriver I had calmed down here and can give full conviction full points. In this it is not enough for it, despite the good performance values ​​and the great handling, unfortunately. I will continue to report.