The Trustfire 001 is known to be a twitchy charger and not IMHO a safe one, Vapourtrails tv did a report on one, when a battery was put in the light showed Red for charge, all good, but when a second battery was put in to charge the one already in would turn green even though the battery still required more charging and the new one inserted showed red also more than a few would flicker between the green and red in each Channel , very interesting charger and best stored in a safe place such as a Bin .
Personally I use a Xtar charger although I have heard (but not tried) that Nitecore are a good reliable safe (as they can be) charger as well .