[C320-list] Help, Please with this questions: What is the minimum generator wattagenecessary to efficiently run my 30 AMP onboard charger?
Dick Walker
dickwalker at att.net
Sun May 23 09:12:59 PDT 2010
HI from Coronado,
I decided not to get a Honda since I have a 20 amp charger so the fasest I
can charge is 20 AMPS. The Honda also requires gas and where to srore it
and the gas. My solution was to get the Balmar alternator and charger
monitor.
If we are on the hook I can run the engine 30 minutes in the morning and in
the evening and the batteries will stay charged and it will also produce all
the hot water we need.
Dick Walker
WindWalkerII #687
619.435.8986
-----Original Message-----
From: c320-list-bounces at lists.catalina320.com
[mailto:c320-list-bounces at lists.catalina320.com] On Behalf Of Robert E.
Sloat
Sent: Sunday, May 23, 2010 6:13 AM
To: C320-List at Catalina320.com
Subject: Re: [C320-list] Help, Please with this questions: What is the
minimum generator wattagenecessary to efficiently run my 30 AMP onboard
charger?
The specs. for my Xantrex 20 amp charger on hull 894 requires 4.6 amps from
120 volts so the amp requirement is about 550 watts on the AC side. Check
out the Honda site where there is a guide for size of generators needed for
various AC loads. There is the issue of inductance loading which is a heavy
load start up phenomenon which can easily double the wattage requirement. I
don't think it applies to a Xantrex type device.
The other items raised including hot water heater, air conditioning and
other electrical devices which will be a temptation when an AC source is
available away from the dock should be factored into the generator sizing
decision.
I have the very light Honda 2000 which I used for emergency backup at home
for small sump pumps and powering electrical hand tools at remote locations.
It is very quiet and fairly light. I don't bring it on board and think you
would have to figure out where to safely store gasoline and the charger when
under way. I can't imagine a 1 or 2 gallon tank of gasoline to feed the
generator sitting inside my boat when things get rough. I guess you could
lash the tank to the stern.
Bob Sloat
Savannah Hull 894
----- Original Message -----
From: "Rick Sulewski" <rsulewski at bex.net>
To: <C320-List at Catalina320.com>
Sent: Saturday, May 22, 2010 11:20 PM
Subject: [C320-list] Help,Please with this questions: What is the minimum
generator wattagenecessary to efficiently run my 30 AMP onboard charger?
> Help, please!
>
>
>
> Understanding that there have been discussions from time to time about the
> size of the portable gasoline chargers to run the onboard chargers (I have
> 30 amp unit on my 1995 320), has anyone figured out the minimum wattage
> generator needed to efficiently run the charger?
>
>
>
> I am considering if it is best to go with a 42 lb Yamaha 2000
> inverter/generator rated at a max of 13.5 amps and 1,600 watts, or the 27
> lb
> Yamaha 1000 rated at a max of 8 amps and 900 watts.
>
>
>
> I considered a larger Yamaha inverter/generator with a max 21 amp and 2400
> watts to run the 16.5K AC/Heat unit, but I understand that the weight
> jumps
> to about 70 lb and is much too large and bulky to store in the aft corner
> storage lockers.
>
>
>
> Thanks for your help.
>
>
>
>
>
> Rick
>
> My-Ria #277
>
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