SamplexPower Evolution Series Owner's Manual page 74

SECTIOn 5 |
1 = Equalize (4-stage)]. Equalization of the batteries is carried out periodically - normally once
per month for battery under heavy duty service and every two to four months for battery under
light duty service. As equalization is a deliberate overcharge of the battery for a specified time
period, equalizing your flooded / wet cell batteries will reduce sulfation, stir up the electrolyte
to remove stratification, equalize voltages of individual cells and thus, help reach and maintain
the peak capacity of the battery.
Please read about the necessity and details of equalizing batteries under white Paper
titled "batteries, Chargers and Alternators," available online at www.samlexamerica.
com (home > Support > white Papers).
The 4 stages of the cycle will be - bulk, Absorption, Equalization, and float. Equalization Mode
is desirable for the proper health of Wet Cell batteries. "EQUALIZE VOLTAGE" is programmable
through the optional remote Control Model EVO-rC (see Screen No.3 in Table 4.4 of Owner's
Manual for EVO-rC at Appendix A). Programmable voltage range and default values are shown
in Table 6.2.
Equalization current and Equalization time are computed automatically. (See Section 5.8)
fig 5.2 shows the voltage and current curves during the 4 stages of charging in this mode.
When Equalization is selected (requires optional remote Control Model EVO-rC (see Appendix
A), the charger will first execute bulk Stage followed by Absorption Stage. On completion of
Absorption Stage, the charger will execute Equalization Stage. After completion of Equalization
Stage, the charger will enter float Stage. The stage transitions will thus be: bulk Stage
(Constant Current)  Absorption stage (Constant Voltage)  Equalization Stage (Constant
Voltage)  float Stage (Constant Voltage).
As part of the Adaptive Charging Algorithm, the charging profile in the Equalization Stage
is based on the time to which is the time the charger remains in the initial bulk Stage. The
charger will remain in the initial bulk Stage for a longer duration when the battery is deeply
discharged and for a shorter duration if the battery has a shallow discharge.
LEGEND
Voltage Curve
Current Curve
Note 1: The voltage curve
shows the voltage output of
charger. The intrinsic battery
voltage may be di erent and
will be proportional to the
state of charge.
Note 2: The graph is for 12V
version. For 24V version,
double the voltages.
Fig 5.2 Charging Curve for 4 Stage Charging in equalization Mode
74 | SAMLEX AMErICA INC.
Battery Charging in Evolution
BULK
(Displayed as "E-CC")
16
V - 0.3V
Absorp
15
14
Io
13
12
11
10
To
ABSORPTION EQUALIZATION
(Displayed (Displayed
as "E-CVA") as "E-CVE")
T1' T2
TIME
Series
TM
FLOAT
(Displayed as "Float")
Set value of
Equalization
Voltage
100
I = 0.5 x lo
2
50
0
10 Days