3. With individual display of charging status for each charge channel.
4. Small size with USB port that can charge most USB devices such as: iPad, MP3, Mp4, PSP, cellphone etc with just one fully charged battery inserted
when the LCD screen shows "Er", which is usually occurred when the voltage is lower than 2V in 5 seconds, the charger will stop charging. With a relatively smaller size, this LUC charger looks smarter than the LUC V4 charger and would be more portable.