How to charge Standard HX220S radio?

[Steve H]

Hi,

I have a Standard Horizon Hand-phone 6 marine radio.

I have the manual, but no wall charger. Can anybody help with the
specifications of the wall charger? I hope that I can easily replace it
will an off-the-shelf PSU with the appropriate voltage set. Or maybe the
charger is a constant current (ie NICAD charger) source?

Any help truly appreciated .....

Steve