Sterling Power Products
Copyright
To setup battery type: (from first install) the input
battery must be over 10.0V x 2 for 24V.
Please choose your battery type before installing so you are
ready for the setup. If the unit is already installed then there
is a slight change at the start of the instructions. The unit
default setting is sealed lead acid 14.4V (28.8V for 24V).
Have the lid ready, observe the ‘MAGNETIC SWIPE’ area
of the lid. There is a small magnet in that area in the lid, you
will need to hold the lid in such a way as to simply push that
area on the label to the area indicated on the main box
(beside the LEDs). There is a magnetic switch located
behind the plastic in the main box which reacts to the
magnet in the lid (do not remove the magnet from behind
the lid label).
As soon as you connect the input live and negative on the
unit (assuming battery is over 10V x 2 for 24V) the setup
routine will start. The routine is as follows (please note with
the DC output disconnected due to the reverse polarity
safety device, the output of the unit is not live, so, although
the setup routine will be active the unit will not work fully until
the DC output cable is connected to an output battery
bank).
To adjust a previously installed unit to a different
battery chemistry simply remove the input positive or
negative and follow the same instructions.
Battery type information:
Non sealed lead acid or open lead acid
batteries,
where you can unscrew the lid of the battery and are
able to be topped up with water, these are by far the
best type for fast charging and long life (max voltage
14.8V).
Gel / Exide spec.
This program is, as per the
recommendation of Exide, set at a voltage of 14.4V
for about 10-12 hours. The unit then drops to float.
Gel U.S.A. spec
.
For some reason, unknown to us,
the American gel manufactures want a different
charging profile than the European ones. Don't ask us
why, if in doubt ask the battery supplier. Gels have a
max charging voltage of 14.1V.
Sealed lead acid / A.G.M.
This is set to a maximum
charge voltage of 14.4V with a software program to
match most of these battery types, some AGM
batteries only want 14.1V, if so, set the unit to the
American gel setting. If in doubt ask the battery
supplier.
LiFePO
4
cells
must only be used in conjunction with
a Battery Balancing System. N.B.
Reverse Polarity
protection has been disabled in lithium profile.
If voltage drops
due to heavy
load in excess
off unit current
ability to support
Charging profile Information displayed on top 3 LEDs on main unit
Fast charge
constant current
mode
Stage 1
LED
High absorptions
charge rate constant
voltage mode
Stage 2
LED
Lower absorptions
charge rate constant
voltage mode
Stage 3
LED
Float/Power pack
mode, constant
voltage, full current
accessibility
Stage 4 LED
Backlash voltage. If
charger power exceeded
and battery discharge
unit resets to stage 1
Stage 5 LED
Time
( depending on battery size, type, state of charge and charger battery ratio, Digitally processed)
v
o
l
t
s
Charge Absorption Float Min Boost Max Boost
volts volts volts mins mins
Switch position
1) Gel I 14.0 13.85 13.7 60 600
2) AGM I 14.1 13.75 13.4 60 480
3) Sealed 14.4 14.15 13.6 120 480
4) Gel II 14.4 14.0 13.8 720 1440
5) AGM II 14.6 14.1 13.7 60 480
6) Flood/open 14.8 14.0 13.3 60 480
7) Calcium 15.1 14.3 13.6 60 360
8) De-sulphation 15.5 0 0 240 240
9) LiFePO
4
14.4 13.8 13.8 30 30
Blue LED
flash
and
Battery Chemistry selection (volts x2 for 24V)
Page 6
Note: Actual voltage shall be 0.1V (100mV) higher within the first 3 minutes
