Battery Question Hunter 40.5

[Bill Jones]

I have a 1994 Hunter 40.5 with four 6 volt golf cart batteries for the house batteries and one 12 volt battery for the engine start. The battery switch in the lazerette with the six volt batteries switches from one six volt bank of two batteries to the other. How can these batteries be used to start the engine if the engine start battery fails to function?

 

[R. Young]

Some ideas

If the 2 systems are seperate and independant, as you suggest, then you have no current method to start the engine from the house bank. You could install a battery switch to select the engine battery from your current 12V bank or the "golf cart" bank, or you could use "battery cables" to temporarily connect the "golf" bank to the engine via the current 12V engine battery for emergency/backup - just like you would on a car.R. YoungHunter 37Destiny

 

[Eric Lorgus]

Question: how do you recharge this set-up?

Is your alternator connected to an isolator?

 

[Rob Schmehl]

go to ALL position

does the Switch have a ALL position to go to if the engine bank dies?

 

[bob]

do you have a battery parallel switch on your ...

engine console? if so, you can use it to start with your house batteries..

 

[Arthur Boas]

Some Clarity

Here's what Hunter did with the 40.5 battery system.The battery cahrger has two isolated outputs, one of which feeds the house battery switch common, and the other charges the starter battery directly (throught the starter battery switch).Whichever position your house switch is on will determine which battery is being charged from the charger.Next, the alternator is connected to the starter battery. There is a large 12V DC solenoid relay above the engine, with the coil energized from the key switch. When you turn on the engine, this solenoid makes a conection between the starter battery and house, shunting them all together. This is how the alternator charges the house.Having said all of this, this solenoid will allow voltage from the house bank to the start bank, but the wire guage (#4 I believe), is too light to crank the starter motor.