So far I have managed to murder:

2 Cartisans

1 Ccell

1 Ooze

2 cheap no name brand pens

They never last more than a couple months, if I'm lucky. I always have the same problem, it will start flashing whatever color indicates it's not making a connection.

I clean the cart, clean the threads of the battery, nothing works to bring it back. Once it happens the pen is dead.

I always follow the rules about charging with the cart off, never leaving it in a hot or cold place, cleaning it in between charges, but without fail, they croak.

I have no idea what I'm doing wrong, I can't believe that I'm just getting bad batteries one after the other. My boyfriend also has a Cartisan and a Ccell he's had forever and both work fine.

At this point I'm buying disposables just so I don't get stuck with a dead battery and no back up, but it's wasteful and I don't like doing it.

Any ideas, tips, tricks? I'm open to any suggestions!