•
7
•
efficiency. The AGM batteries are a variant
of Sealed VRLA (valve regulated lead-acid)
batteries. Popular uses include high-
performance engine starting, power sports,
deep-cycle, solar and storage batteries.
AGM batteries are typically good deep
cycle batteries and they deliver best life
performance if recharged before the battery
drops below the 50 percent discharge
rate. If these AGM batteries are completely
discharged, the cycle life will be 300
plus cycles and this is true of most AGM
batteries rated as deep-cycle batteries.
Gel –
Set button to
AGM
. The Gel Cell
is similar to the AGM style because the
electrolyte is suspended, but different
because the AGM battery is still considered
to be a wet cell. The electrolyte in a GEL
cell has a silica additive that causes it to
set up or stiffen. The recharge voltages on
this type of cell are lower than the other
styles of lead-acid battery. This is probably
the most sensitive cell in terms of adverse
reactions to over-voltage charging. Gel
batteries are best used in VERY DEEP cycle
applications and may last a bit longer in hot
weather applications. If the incorrect battery
charger is used on a Gel Cell battery, poor
performance and premature failure is certain.
LITH (Lithium Ion, LiFePO
4
only) –
The LiFePO
4
(Lithium Iron Phosphate)
battery is lithium-ion based and offers good
safety characteristics. The LiFePO
4
cell
has a very constant discharge voltage.
This allows the cell to deliver virtually full
power until it is discharged. Because of the
nominal 3.2 VDC output, four cells can be
placed in series for a nominal voltage of
12.8 V. This comes close to the nominal
voltage of six-cell lead-acid batteries. This
makes the LiFePO
4
a good replacement
for lead-acid batteries in applications such
as automotive and solar. Like a gel cell, the
LiFePO
4
cell is sensitive to overcharging.
Its cells are balanced before they are
assembled, and an internal protection
system is implemented, preventing too
deep a discharge.
START/STOP BUTTON
Use this button to start or stop the charging
process, after the battery is properly
connected and battery voltage and type
have been selected. If the battery voltage
is greater than 0.2 V, the display will briefly
show “ON” when the START/STOP button
is pressed. After charging has started,
pressing the START/STOP button will
cause the display to briefly show “OFF”.
If the battery voltage is 0.2 V or less and
the START/STOP button is pressed, the
display will show “OFF”. This indicates
that charging has not started, due to low
battery voltage.
CHARGING LED INDICATORS
Charging (yellow/orange) lit –
The charger is charging the battery.
Charged/Maintaining (green) lit –
The battery is fully charged and the
charger is in maintain mode.
Reversed Clamps (red) flashing –
The connections are reversed.
NOTE:
See
Operating Instructions
for a
complete description of the charger modes.
12. OPERATING INSTRUCTIONS
OVERVIEW
Connect AC power and set the front panel
ON/OFF switch to the ON position. Then
select an unused charging outlet from
the eight available. Connect the battery,
following the precautions listed under
sections 7 and 8. Select the appropriate
Battery Voltage and
Battery Type
and press START. If the battery voltage is
greater than 0.2 V, charging will begin.
If charging begins, the Battery Voltage,
Type and Display settings are saved. Then,
whenever the unit has been off and AC
power is reapplied for 10 minutes and no
buttons are pressed, charging of the battery
will resume with the saved settings from the
last charging cycle.
DISPLAY
Following power-up, the display turns off
after 1 minute or 1 minute from the last key
press or connection to a battery. With the
display off, any button press (other than a
display button press) will turn the display
on for one minute or one minute from any
subsequent key press or clamp connection.
Also, with the display off, connecting the
station cable clamps to a battery will show
the battery voltage and keep the display
on for one minute or one minute from any
subsequent key press. However, with the
display off, if the display button turns the
display on, the display will remain on until
power-down. If the display button turns the
display off (see
Display Mode Button
, in
Section 11), then the above scenario, with
the display off, once again applies.
Summary of Contents for DSR PROSERIES DSR5254
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