Q: With the Icom CP-20 Cigarette lighter cable, can you charge the battery and use the radio at the same time?
The issue with the icom handhelds being used at the same time as they are charged is that when the PTT switch is pressed, the unit can get damage to do the way the circuitry is wired. Per Icom it is not recommended to use and charge an Icom transceiver at the same time.
Q: What is the total length of the Icom CP-20 cigarette lighter cable (from plug - plug)?
From end to end, the plug is approximately 85" in length.