This charger provides loading of up to four AA or AAA batteries, a single channel control, so that each battery is charged individually. Settings are not required. As long as the charging process is running, lights up on the corresponding shaft a blue LED. Should it go faster times, two batteries can be charged with a higher current. The two central bays have to remain free.
This device is ideal for those who simply want to upload only their battery without having to worry about any settings.