The other piece of this puzzle is that LiION batteries require a very specific charging cycle. ?Trickle charging after they are full may result in metallic Lithium, which becomes an explosion hazard. ?If you run the radio while it is charging, the charging circuit is unable to observe the condition of just the battery. ?Essentially the radio drain makes the battery look under charged, which will cause the charger to overcharge the battery, risking the hazard listed above.
A Lion charger will start charging at a defined current, then when the battery voltage reaches a certain level, it will charge in pulse cycles, adding charge, then observing the voltage. ?When the voltage reaches the correct level, it stops charging altogether.
As pointed out by others, using the battery while charging it can be a life safety issue, due to a hazardous battery condition, if not due to inadequate charge.
Bill
Sent from my shoe phone¡¯s big brother
. ?Please excuse auto connections caused by typhoons.??