Charger Li-Ion & Li-Po for 1 to 4 cell, LCD display shows voltage and charge current, charge rate adjustbale from 0.5A to 6.5A, true CC-CV hardware, adjustable voltage cutoff from 4.10V to 4.25V per cell, 12VDC input, optional AC/DC power supply, built-in cooling fan, compact size, blue LED indicates fast charging and green LED indicates trickle charging, 90-day warranty