Sterling Power Pro Charge B Installations- Und Bedienungsanleitung Seite 5

Battery Type Setting. (See page 2 for all the battery type information)
Selecting your battery type:
If in doubt, use the settings with the lower boost voltage settings. This will not cause a problem, however, the
higher setting could, if used on the wrong battery type. You can always adjust the setting at a later date when you
find the correct information you require. It is no big deal picking a setting too low, but it is a big deal picking one too
high as this could permanently damage your batteries.
Battery Charging Terminology:
We use the word bulk/boost,
means is that the charger is offering the maximum possible current to the batteries (and the batteries will absorb
all the current up to the max current of the charger) for as long as possible, until the boost voltage will be reached.
Then the current will taper off and the charger switches into the absorption phase. The boost voltage will be kept
for a calculated time until after this time the voltage will drop to
battery voltage down then the unit will reset the boost and do another fast charge cycle. The float voltage which
will maintain your batteries and also allows the system to act as a power pack to supply power being used on the
boat or vehicle without touching the newly charged batteries. The time on absorption is determined by the state
of charge of the battery bank and the ratio of your battery bank size and the size of the charger. The internal
software program works this out every time the charger is used and will vary within the parameters shown as
time.
The actual voltages are approximate (varies depending on battery charge status) time settings for all the
different battery types are all shown on the front page below the wiring diagram for each battery type.
Some modern batteries have had calcium added to their plates in order to reduce water loss in the battery. The
down side with this is that you need a higher charge voltage to get the batteries charged. This setting goes up as
far as 15.0 volts on boost and can have a detrimental effect on some voltage-senstive equipment on the
boat/vehicle. It is important to ensure that your equipment works safely at a voltage in the region of 15.4V
(x2 for 24V, x3 for 36V, x4 for 48V systems) before selecting this option, most equipment should be okay
but maybe not all.
Start up and test procedure
When the unit is connected, it senses the voltage on the input battery. The voltage must be above 13.3V to
activate the unit (on all 12-24V, 36V, 48V units). In order to get to this voltage on the input battery a charging
source on the input battery is required (e.g an alternator, battery charger etc). When the unit first starts up, the
LED sequence is, 2 green LEDs on (LED 2 flashing) for 5 sec. This confirms the LEDs are ok and the correct way
round. Then 2 red LEDs on for 2 secs. After green + red then again 2 green LEDs will flash for about 10 secs, (this
is the battery type selector window) you can change your battery type during this phase using a magnet. If the
battery type is ok, then the unit will simply continue into the charging program as per normal.
If on start up nothing happens, then:
1) Test the primary battery voltage. It must be above 13.3V. To see the unit working start up the engine and
ensure you are getting at least 13.3V at the starter / primary battery.
2) This unit is fitted with a safety system where, if the output voltage drops below 6.5V at 12V (pro rate for
24V/36V/48V) then the unit will not work. In order
on the output bank above 6.7V at 12V (pro rate for 24V/36V/48V). Warning: at this low voltage your batteries may
well be badly damaged and beyond repair.
IMPORTANT: The maximum current is only available if the input voltage is larger than 13.5V. Between
13.5V and 13.3V input voltage the current is tapering off.
Unfortunately, with modern batteries this may not be as simple as it first appears.
also called constant current, to describe the first stage of the charge cycle. All it
to activate in the field
float . While on float if a battery load pulls the
then you need to raise the voltage