DC Power Technologies Charger Interface Software Manual User Manual

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exempt. Pictures may be representative, actual products may differ.

setting is very important for sealed
cells where it needs to be quite low to
prevent the battery losing electrolyte
and drying out.

Stage 3 Min dV/dt

Rate of change of battery voltage in
mV/15min/cell used to determine the
automatic end point of the charge
cycle.

Stage 2 Timeout

Maximum time the charger will stay in
the constant voltage stage of the cycle.

Stage 3 Max Cell Voltage

Maximum voltage the charger will
reach in stage 3. It provides protection
against applying too great a voltage to
the battery. The occasional maximum
voltage trips are not a major problem
and the charge completes with a minor
alarm. Regular maximum voltage trips
occurring indicates that the battery
needs attention.

EQ/Refresh Current

The percentage of the nominal charger
current (set in the configuration) that
is used for the equalization, normally
set to quite a low value, typically 25%
for a flooded battery, less for GEL or
AGM.

EQ/Refresh Duration

The duration of the equalization.

EQ/Refresh Max Cell Voltage

The maximum charger output voltage
during the equalize charge. Normally
set to the same as the Stage 3 max
cell volts but can also be a little higher
to allow more headroom for a full
equalize to occur.

Stage 3 Timeout

The maximum time the charger will
stay in the constant current gassing
part of the cycle. This time can vary
when the battery is new. Whilst it is
necessary to provide a limit to the
time, the occasional finishing charge
timeout is not a major problem
resulting in only a minor alarm
indication. Should Finishing Timeout
errors be regular then the battery
should be investigated. It is not always
necessary to have separate stage 2
and stage 3 timeouts. If the stage 3
timeout is set to zero then the stage 2
timeout is used as the combined
stage2/3 limit.

Auto EQ/Refresh After

Time that the battery needs to remain

connected to the charger for it to
initiate an auto equalize cycle.
Normally set to 30 hours to allow an
equalization over a weekend period.

EQ/Refresh Lockout

The minimum time following the
completion of a charge cycle, before an
equalize can start. This is sometimes a
requirement of battery charger
specifications to allow for the battery
to cool before applying an equalize
charge. When the lockout is set then
this is the minimum time between
charge complete and equalize even if
the equalize is manually initiated.

Temp Comp Factor

Temperature compensation factor used
to adjust the chargers voltage setting
to allow for different battery
temperature. Measured in
mV/(°C/°F)/cell. Normal setting for
lead acid batteries is -3.0

Auto EQ/Refresh options

Some profile type selections allow the
following Auto Equalize options. Auto
Equalize must be enabled in the
Configuration tab.

Profile Auto Equalise Enable

When selected, the equalize options
are enabled, operating with the
EQ/Refresh Current, EQ/Refresh
Duration, EQ/Refresh Lockout and Auto
EQ/Refresh After parameters.

Bulk Charge Only, Full Charge on

Equalise only

Select when opportunity charging using
battery modules. Initiates a full charge
whenever an equalise charge is set to
occur.

Bulk Charge Only, Full Charge after

Delay

Select when opportunity charging using
battery modules. Initiates a full charge
plus equalize charge whenever the
battery remains connected after the
specified delay.

EQ/Refresh Constant Voltage

If enabled, the Refresh Maximum cell
Voltage is used as a limit and the
refresh current will reduce to maintain
the battery voltage at the Max cell
Voltage until the Refresh Duration
times out. If disabled then the refresh
charge will terminate when the Max
Cell Voltage is reached.