Opus BT - C3100 V2.2 Intelligent Battery Charger-37.63 Online Shopping| GearBest.com
Bought one of these charges a while back, and unfortunately one of ports stopped working.
It does still work properly with three ports, but I consider that to be a failure.
Bought another one, since I enjoyed the ability to adjust the control it provides, and unfortunately it failed altogether while I was on an extended trip. Found it to have failed altogether in the morning after leaving it charging four panasonic 18650's at 500mA. Screen stopped working, and batteries no longer charged. (If it still worked by detecting battery type, and only the screen failed I would not have been as disappointing. Was very annoying to have to look for a charger while on vacation.)
Edit: Replaced with Fenix ARE-C2, which does not offer any ability to adjust charging current, and detects batteries automatically, but so far it has been rock solid.
Bought one of these charges a while back, and unfortunately one of ports stopped working.
It does still work properly with three ports, but I consider that to be a failure.
Bought another one, since I enjoyed the ability to adjust the control it provides, and unfortunately it failed altogether while I was on an extended trip. Found it to have failed altogether in the morning after leaving it charging four panasonic 18650's at 500mA. Screen stopped working, and batteries no longer charged. (If it still worked by detecting battery type, and only the screen failed I would not have been as disappointing. Was very annoying to have to look for a charger while on vacation.)
Edit: Replaced with Fenix ARE-C2, which does not offer any ability to adjust charging current, and detects batteries automatically, but so far it has been rock solid.