The charger is a dual ports sequential quick charger that will fully charge the Li-ion batteries in approximately 4 hours. It can charge 2 batteries sequentially. The sequence for battery charging at channel 1 then progresses to channel 2 and then back to channel 1 again. It automatically searches each channel in continuous loop for battery charging sequence loop is interrupted only by the detection of valid battery to be charged.
Excellent Small and Light portable charger that supplement additional battery charging while on the travel. Charges both standard and extended battery using direct connection to battery terminal.