>
>In a message dated 10/13/98 8:07:04 PM Central Daylight Time,
>
> I have two six volt golf batteries I run in series, And it serves my
> coach very well.
> Jack Ford >>
>
>Jack
>
>How many amp hours? Do you boondock much? What kind of charger?
>Sorry for so many questions.
>
>Take Care
>Arch
>
>
Arch,
I run 2 golf car batteries (Trojan 104s) in the rear battey compartment of our Palm Beach. The larger cpacity batteries are
too tall to fit into the compartment without some modifications. I've gone to the TrueCharge 40+ battery charger available
from West Marine under their brand, or from Statpower (the manufacturer) in British Columbia.
Using this setup I can go 2 days during the summer before I need to recharge. During the 2 days, our load is primarily
determined by the fridge. We still have the original fridge, so I don't have the option of propane. We used 2 lights
(originals) for 2-3 hours per day, ran the radio a bit (1-2 hours per day) and still had enough juice left in the batteries
to start the genset. Once I had to start the coach first in order to start the genset - after we'de run 3 days without any
recharge.
Things to do that will extend boondocking time:
1. get a propane fridge! Probably the biggest improvement.
2. when boondocking use the "middle 50%" of the battey bank capacity. This means discharging until about 30% capacity is
left and then recharging to 80% using the genset. You can rechage the 50% in about 2 hours depending on the charger. Shore
powered recharge to 100%.
2. consider halogen lights or florescents(best) for better efficiency
3. look at your DC systems that include dimmers or speed controls. If they use load resistors for controling speed consider
replacing with an electronic PWM controller, it's more energy efficient but more expensive.
4. switch to a charger like the TrueCharge that can recharge to an 80% level in a few hours ( I try to use only about the
middle 50% of the battery bank capacity since it recharges quickest)
You can also get a good feel for your own power consumption by installing an ammeter on the house battery and watching your
load. Alternatively, run a few specific tests like I did to determine how long your battery banks last under what you think
will be your typical usage. Lastly, make certain that your house and coach batteries are isolated - that way when you make a
mistake, you can still get everything started. Or, if you're really paranoid like me, carry a portapak booster battery just
to make sure.
Henry
Henry Davis Consulting, Inc / new product consulting
PO Box 1270 / product readiness reviews
Soquel, Ca 95073 / IP reviews
ph: (408) 462-5199 / full service marketing
fax: (408) 462-5198
http://www.henry-davis.com