Monday, August 31, 2009

Re: [Electric Boats] Electric Yacht system

 

According to the Volvo Penta MD10A manual a 14 X 12 was one of the
options. Now I am not sure if the Ericson will accommodate the 14 inch
or not. Perhaps an assumption on my part. I guess a splash in the water
with a measuring tape will solve the riddle. I will forward this to
Scott who is programming the controller. It is a brushed motor. I
ordered a set of extra brushes with the hope of never having to install
them, along with an extra belt. The Dual Pro 4 Bank Pro SE is the
charger.

I am curious as to why 2 four banks of batteries ? I will have four
Interstate SRM 27 cell batteries hopefully installed by week's end,
pending the arrival of the motor assembly and switches, etc.

I choose the brushed motor over the brushless because of the possible
failure of the controller. It is my understanding that a direct battery
connection to a brushed motor will allow a safe journey back to slip. I
am now contemplating the replacement of the 50 amp fuse with a 50 or 100
amp circuit breaker. This would be more for convenience of not having to
look where I put the extra fuse.

Don Swanson

On Mon, 31 Aug 2009 23:14:15 -0000 "acsarfkram" <acsarfkram@yahoo.com>
writes:

Eric,

Are you sure you can fit a 14x12 prop on your E27? I ended up with a
12x10 three blade fixed and it works pretty well - 4knts @20amps. I would
like to try a 12x11 just for grins.

Is the Electric Yacht motor a brushless motor? When I was looking they
were brushed motors. The SoildNav Explorer, the one I installed in my
Ericson 27 is brushless.

Also if you are adding new batteries to older ones I would get a charger
that charges each battery individually. Like the Dual Pro Four Bank Pro
SE. I added a new battery to a bank after one went bad and the Kipoint 48
volt charger (which charges the whole bank as one) had problems. The Four
Bank Pro is keeping the mixed bank balanced so far.

I have two separate banks; 4 group 27 AGM's and 4 group 31 AGM's. The
Kipoint charger is on the bank that has all the same vintage batteries
and it's working fine on them.

>

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