You invested in NiMH/NiCd batteries, but they didn't last long and quickly broke? The problem may not be the battery, but also a poorly selected charger. If you are serious about charging both AA and AAA batteries, do so regularly and with multiple charge cycles, then the EMOS is an absolute must for you. In addition to selectable charging speeds, health modes for older or over-discharged batteries, it also offers battery capacity measurement and other advanced features. You will also appreciate the bright backlit display. Four pieces of AA 2 600 mAh batteries are located directly in the charger packaging, so there is nothing to stop you from immediately enjoying all the benefits that the batteries bring.