CX19/21 - location of batteries

Mal Kamenjarin · Post by **Mal Kamenjarin** » Sun Feb 22, 2009 9:37 pm

Jacques,

Would you please recommend the best location for 2 batteries. As you may recall I have extended by 2 feet the cockpit part of the hull so I imagine that would add extra buoyancy to the back end of the boat and as I will be mounting a 90HP ETEC which only weighs about 145 kgs, should I be locating the batteries somewhere at the back to compensate for that extra buoyancy?
Could they go each side of the outboard well? I appreciate that I would need to leave a fair bit of ply around the opening.
Thanks in advance.

PERCY · Post by **PERCY** » Mon Feb 23, 2009 2:52 am

Hi, I fitted mine on the floor inside the console, keeping the weight towards the centre of the craft, easily accessed and nice and dry. I would avoid putting any excess weight at the rear as it could have an impact on the boats ability to get on the plane as quickly as otherwise.

Mal Kamenjarin · Post by **Mal Kamenjarin** » Mon Feb 23, 2009 6:20 am

Hi Percy, this design has a cabin not a centre console. To locate them on the centre of the boat they would have to go under the cockpit floor and that would bring all sort of other problems which I wish to avoid.
I agree with you that locating them at the back could affect the boat's ability to get on the plane quickly as they will weigh about 50 Kgs.
Unfortunately, the plans don't specify the preferred location for the batteries.

PERCY · Post by **PERCY** » Mon Feb 23, 2009 1:18 pm

Sorry, I did'nt realise. I agree that they should not go under the floor if possible.

Post by **jacquesmm** » Mon Feb 23, 2009 1:30 pm

We show the tanks but not the batteries.
There is enough weight towards the bow, you can install a battery on a shelf, probably on the starboard side. Opposite side of the fuel filter or fuel lines.

JimW · Post by **JimW** » Tue Feb 24, 2009 10:03 am

In the C19 with a heavy 115 4s motor one battery in the aft hatch is not too much weight. That's where mine is. I wanted a short run of big starter wire.

Mal Kamenjarin · Post by **Mal Kamenjarin** » Tue Feb 24, 2009 5:51 pm

Hi Jacques, I am not sure where you suggest that the batteries on thed shelf should go. Did you mean in the hatches each side of the outboard well or somewhere in the cockpit.
Hi Jim, I was also thinking the shorter run to the starter motor the better. I would need to cut openings on each side as I will have a starter and home battery.
I will wait and see what Jacques suggests.

TomW · Post by **TomW** » Tue Feb 24, 2009 8:18 pm

Mal, when Jacque says on a shelf, it is in the transom lockers either on the right or left side and put the fuel filter and hoses in the other and the control cables in the right side normally for the motor. Our safety requirements here require us to keep the electrical and fuel lines seperate.

Your house battery can go about anywhere, but you should be able to fit both in the same locker or put one under a seat forward. You will also need a Solenoid type switch that will keep both batteries charged underway.

Tom

Mal Kamenjarin · Post by **Mal Kamenjarin** » Wed Feb 25, 2009 5:15 am

Tom, thanks for the explanation. I am not sure what our safety regulations are, but it does make sense to keep batteries and fuel lines apart. I am a bit worried about both batteries being on the same side with my 212 lbs.

What is usually done, openings cut in the bulkhead or in the tops of the side hatches? Sorry for dragging this issue on and on, it's just that I am at the stage when I need to decide what and where to cut.

I will have a Blue Sea (USA) battery selector switch to take care of charging first or second or both batteries.

Cheers
Mal

Daddy · Post by **Daddy** » Wed Feb 25, 2009 8:34 am

Good questions, these issues of safety are worth discussing.
Daddy

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