XCEL Q-SERIES, Руководство пользователя

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PRE-QUALIFICATION-TEST Charge Stage:
 Tests battery for sulphation by applying a low level charge current and
analyzes voltage and current values and rates of change to determine if
the battery is ready to transition to the next high power Bulk Charge
Stage.
 If a Battery Temperature Cable is installed, then minimum and
maximum temperature automatically become part of the analysis.
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BULK Charge Stage (also known as ‘Constant-Current’):
 High Power charge, charges at a constant current or constant power
rate to deliver the ‘bulk’ of the charge needed

Some algorithms employ a 2-step Bulk Charge rate where a timed 10 to
30 minute period of a higher current may be measured. This two-step
process helps to break down sulphates quicker.
 Upon completion of this stage, approximately 80% of total charge is
delivered to the battery
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ABSORPTION Charge Stage (also known as ‘Constant-Voltage’):
 Charger charges at a constant voltage level to provide adequate time
for the battery plates to ‘absorb’ the energy delivered.
 Charge Amperage decreases as the energy is being absorbed into the
plates.
 Termination of this stage occurs when the charge current has
decreased down to a targeted value which is dependent on many
factors such as size, type, age, and chemistry of battery.
 Upon completion of this stage, approximately 95% of total charge is
delivered to the battery
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TOP-OFF Charge Stage (also known as ‘Finish’):
 Charger charges at either a constant voltage, or constant current, or a
combination of constant-current / constant voltage to ‘Top-Off’ the
charge in a battery.
 This stage employs timing based on ‘timers’ measured and recorded
during previous charge stages, in combination with dv/dt and/or di/dt,
and/or dT/dt, and/or, maximum voltage and temperatures (if Battery
Temperature Sensor installed), to terminate.
 Variations in this charge stage are highly dependent on the battery
Charge MODE selected. Flooded Lead Acid batteries are typically
aggressively charged to high voltage levels to force internal gassing
which helps to mix the electrolyte. AGM (Absorbed Glass Mat) batteries
differ in that this stage limits upper voltage regulation levels which helps
prevent drying out the Absorbed Glass Mat.
 Upon completion of this stage, approximately 100% of total charge is
delivered to the battery
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EQUALIZATION Charge Stage:

As batteries in a battery pack charge and discharge over many cycles,
cells may become unbalanced. Cell unbalancing becomes more
common as batteries age.