Instruct: Classify the given Amazon review into positive or negative sentiment.
Query: Total disappointment!!!

I wonder how they can manufacture such a bad quality charger!!!I bought one last month, but could only charge 2 ps3 wireless controllers once successfully, and it did not work the 2nd time, not even when I put only one controller on it.I asked for an exchange, and unfortunately exact same problem happened on the exchanged new charger, but the shop could not exchange for me again.It is written compatiable for ps3 but I think somehow there is a problem, and I wasted my money on this charge I could use only once.Please make sure the quality is ok before putting them up in the market for sale!!!I feel ripped of money!