DuraTrax Onyx 240 charges 4-8 cell NiCd or NiMH (4.8 - 9.6V) cells Two independent outputs each with identical features and functions Selectable charge currents of 800mA, 1.5A, 3A and 5A with auto- TRICKLE-each output NiCd and NiMH compatibility with custom peak detections-each output Unique built-in jack for charging 4 - 5 cell receiver packs for nitro models, even Tx packs-each output Custom LCD with Blue backlight shows battery voltage, charge current time and capacity-one for each output Simple pushbutton controls and audible tones aid in setup and use- each output DC power lead with alligator clips easily connects to many 12V DC power sources Solid state reverse polarity and current overload protection ensure trouble-free operation Five year warranty