Battery Charger, does my boat have one?

[PanchoCC]

Battery Charger, does my boat have one?

Electrical Panel has switch/breaker labeled "rectifier". Is this the charger ?

I know a rectifier converts 120-AC to 12v-DC, but I have also seen battery chargers on the internet which are called "rectifier / chargers". So I want to know how to determine if the "rectifier" switch/breaker is also for a charger, and if so, then should I have that switch on when I plug the boat into dock power?

Boat didn't start today. Both battery, new 60 days ago, were low, at approx 8 volts each.

If boat does not have charger, then intend to install Promariner 20 Plus, 3 bank charger.

Need to know if boat has a charger.

Thanks
1985 Chriscraft 337 Commander, aft berth, twin 454 Merc. IB's

 

[Windykid]

Re: Battery Charger, does my boat have one?

Does the boat have a seperate generator?

You could always just plug the boat into shore power and try the rectifier switch and see if it charges.

Do the battery's have the extra wires?

 

[PanchoCC]

Re: Battery Charger, does my boat have one?

Yep, boat has seperate genset.

Rectifier charges on motor battery only.

Boat has 3 batteries--2 for twin 454's, and one for genset.