ProMariner Digital Mobile Charge Battery - Manual (Page 8)

8
Start-up and Test Procedure:
When the Digital Mobile Charge first starts up, the top battery type LED will illuminate yellow, red,
green, or yellow flashing depending on the battery type selected, and the Fast Charge LED ( 3
down ) will begin flashing slowly. This green LED slow flashes to shows that the unit is working but
is inactive for the first 2.5 min. with the intention of allowing the engine start battery to recover a
little.
After about 2.5 min. the Fast Charge green LED will stop flashing and change to a continuous
green light and the unit will begin charging, or the unit will shut down to rest mode if the battery
voltage is to low. It can do so because the Digital Mobile Charge is constantly sensing the voltage
from the input battery. If the voltage is above 11 volts for 12v models (22 volts for 24v models)
then the system will come on for about 5 min., it will sense that the input battery voltage is to low
to continue and the unit will go into sleep mode.
If your vehicle has a normal / healthy engine start battery, The Digital Mobile Charge will begin
Fast Charging after the initial 2.5 minutes, and that current to the engine start battery will be
provided in addition to the amplified current being provided to the domestic battery bank by the
Digital Mobile Charge. This high current output to the domestic battery bank will continue in cycles
of 20 minutes on and 3 minutes off to ensure the engine start battery is always O.K.
Once the domestic battery bank reaches its charging voltage (depending on the battery type
setting but between 13.5-14v for 12v models or 27v-28v for 24v models), the Absorption LED will
illuminate and the high rate of charging will continue for a period of time calculated by the Digital
Mobile Charge. This time period is determined by what battery type you have selected and the
state of discharge of the domestic battery bank (1-6hrs). The rest period continues to be 3 minutes
off for every 20 minutes off. After the calculated amount of time is over, the unit drops to float with
no switch off period. A Float LED indication tells the operator the domestic battery bank is charged
and is being held at a maintenance voltage.
The Digital Mobile Charge will attempt to hold the battery voltage at the above described Float
range. If current is demanded, the Digital Mobile Charge will try to meet that demand and keep the
domestic battery bank at float. However, if the domestic battery bank falls below approximately
12.8v for 12v models (25.6v for 24v models) for more than 15 minutes, the system will reset into
the Fast Charging mode again. Additionally, if the input voltage falls below 12.8v for 12v models
(25.6v for 24v models) the unit will assume that the input is switched off and will switch the system
into rest mode to conserve energy. Only if the input voltage rises again, by running the engine
again for example, will the system restart.
If on start up nothing happens, be sure to test the battery voltage. It should be above 11 volts for
12v models (22 volts for 24v models), to see the unit working, start up the engine and ensure you
are getting at least 13.5vdc for 12v models (27v for 24vdc models) at the battery.