That depends. If you have multiple batteries in the radio, the total voltage
may be to low to run the radio. Stick reachable in a Sangean 818 and see how
long it lasts.

"CAndersen (Kimba)" wrote in message So
even though rechargeables start out at a lower voltage, almost all
electronics are designed to operate over a range of voltages and the
performance with rechargeables is no different than it would be with a set
of alkalines at about the middle of their useful life.