The charger I have died on one side after a few weeks (plugged in the whole time - my bad), but the other side still works. This is a good thing as the charger I got to replace it, also a Trustfire, is a little too short to take the 18650 batteries available on this site. It's an OK charger and for the price it works. I wouldn't leave it plugged in all the time like I did though.