Wiring charging cradle for radio

Polly's Kettle

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Quick question ... I'm about to wire up a wireless handset for the main radio.

Would the charging cradle normally be wired to the "always on" part of the fuseboard, like the electric bilge pump, or to the "only on when the house switch is on", like the radio itself?

I can see an argument for the former, so your handset is always fully charged, and for the latter, to minimise drain on the battery when you're not on board, particularly in the winter, but with the risk that the handset has lost its charge.

The manual says that the cradle (B&G H50) will draw < 0.5A, but I don't know if that is constant, or reduces as the handset becomes charged.

We don't plug into shore, but have a 100W solar panel that makes sure the batteries are always full when we get there, whatever state we left them in (or at least it does at present .... ).

I would value views from the more electrically minded.
 
If it were me I'd fit a switch for it so I could decide when to leave it on or not. And as a separate circuit I'd have a fuse too.
 
I'd wire it so it's off when the main switch is off. Apart from anything else, the B&G inductive charger has a reputation for failing, and it might be better not to leave it switched on when the boat's unattended. The handset battery shouldn't self-discharge significantly anyway.
 
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