It wasn't only the 1.7s, it was the 1.5s, 2.0 and 2.5s as well. I bought a whole bunch from a few places and had bad results with all of them. 1 carto lasted almost 2 weeks, the rest were a max 5 days and generally 1 day :(
Like a ..... I bought some more the last time I bought cartos (I bought...