22' come with 2 batteries?

thataway":f5qrhleb said:
Jay, and you may have already resolved this issue, so it is mentioned for others, the dual battery switch has to be "make before break"--and not all of the switches are of this design. Basically this means that a battery is always connected to the alternator output. If you have no output and still have field current, the diodes will blow on the alternator, and that repair can exceed the cost of a VSR. I used the simple switch for over 40 years and nothing wrong with it, as long as you use precautions. But the vSR saves stopping the boat, going aft, and switching the battery. Another way of doing this is to start the engine on "all" (with electronics off) and when you stop the engine, switch to the house battery only. This preserves the start battery if you run down the house battery during a night at anchor.
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The Perko Duel battery switch allows you to switch from 1 battery to the other or select both without stopping the motor, its switching to off while the motor is running will damage your alternator. When you switch batteries you have to go through all, so there is no interruption in the circuit. I made the modification today and tested it with motor running, no problems.
The plan is to start engine with battery 1, recharge battery in transit-say 20 minuets or so, have first mate take the wheel while I go back and switch over to battery 2; Battery 1 will remain fully charged and ready.
When the boat is parked I have Battery Tenders with quick disconnect attached to each battery, this way the batteries will always maintain a full charge when not in use.
 
The switch I have does that automatically but can also be overridden manually. My understanding is that this product is new and was created for the situation we are talking about. So far it is doing the trick, but to each his own. More than one way to go for sure.
 
I have a 22 cruiser with twin engines, and two batteries. The port battery starts the port engine, and has a bilge pump wired to it. The Starboard battery starts the starboard engine, and also has all house functions on it and a bilge pump. I have a seperate panel for electronics, and am careful to not have any on while starting. I also have the Wallas stove on the starboard battery. I have not had any problems with this setup, and would like to not add the weight of an additional dedicated house battery. The Wallas works fine. I have a set of cables for starting should one battery not have sufficient power. When on an extended cruise, I take a backup battery, but on a day to day basis I don't want the extra weight. For me, the simplicity of this setup works fine. Can I use a single battery only for starting both engines, and use the other battery as a house battery? I saw a previous discussion of this, but it was not clear to me that this could be done. How would this be wired to charge the house battery?
 
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