Charge Controller Features - Holiday Navigator 2003 Owner's Manual

The RV-30 Charge Controller has many unique features which are listed
and described below:
1. Dual Battery Bank Charging - The above mentioned parasitic loads
affect both the House and Engine batteries. The controller automatically
charges both the House and Engine batteries at the same time to deal
with this issue.
2. Pulse Width Modulation - This charging strategy has been found by
the Sandia National Laboratories to maintain the highest state of
charge with the least amount of battery water consumption. In effect,
it delivers all the available charging amperage until the batteries
reach their set point voltage (this stage is called bulk charging) and
then it begins to taper off amperage (absorption stage) until it is
reduced to all that is needed to simply hold the batteries at their set
point voltage (Float Stage).
3. Temperature Compensation - The gassing threshold of the batteries
is reached at around 14.1 to 14.4 Volts at room temperature (25º C).
If the temperature of the batteries is hotter than 25º C, the gassing
threshold is reached at a lower voltage. If the temperature of the
batteries is colder than 25º C, the gassing threshold is reached at a
higher voltage. This feature protects the batteries from excess water
loss and/or plate sulfation by automatically compensating for these
temperature changes and adjusting the charging voltage accordingly.
4. Automatic Equalization (Only when set to Flooded Lead-Acid
Batteries) - This feature is activated once per day to extend the life of
the batteries by allowing the weaker cells a chance to catch up with the
stronger cells. This assures that all cells will be at an equal state of
charge. The first time the house batteries reach 14.2 Volts during the
day, a delay timer is activated that allows a short duration period (20 to
30 minutes) at a slightly higher voltage (14.5 to 15.0 Volts) and then
falls back to the 14.2 Volt setting for the remainder of the day.
5. Automatic Float (Only when set to Absorbed Glass Mat Batteries)
- This feature resets the charge parameters to work with AGM batteries.
It removes the equalization cycle (AGM batteries are sealed and
don't like the higher voltage reached during equalization), and
changes the Float setting from 14.2 to 13.4 Volts, which is what the
AGM battery manufacturer recommends.
CAUTION: The Charge Controller Panel may be hot to the
touch. This is a normal function of the Charge Controller.
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N A V I G A T O R 2 0 0 3
Electrical Systems - House
Charge Controller
Features
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