Product Manual

90 | SAMLEX AMERICA INC. SAMLEX AMERICA INC. | 91
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 will be - Bulk, Absorption, Equalization, and Float. Equalization is desirable for
the proper health of Wet Cell Batteries. "EQUALIZE VOLTAGE" is programmable through the
optional Remote Control Model EVO-RC-PLUS (Refer to Section 4.2.2.3 of Owner's Manual for
EVO-RC-PLUS). Programmable voltage range and default values are shown in Table 6.2.
Adaptive Equalization current and Equalization time are computed automatically. (See Section 5.9)
Fig 5.2 shows the voltage and current curves during the 4 stages of charging in this prole.
When Equalization is activated (requires optional Remote Control Model EVO-RC-PLUS – see
Section 5.9), the charger will rst 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 Equalisation Algorithm, the charging prole in the Equalization
Stage is based on 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.
VDC
24V Battery 12V Battery
CURRENT (%) of Set
BULK CURRENT
“Io”
100
50
0
15
14
13
12
11
10
16
0
30
28
26
24
22
20
32
0
TIME
To T1’
T2
Io
I
2
= 0.5 x lo
BULK ABSORPTION EQUALIZATION FLOAT
Set value of
Equalization Voltage
V
Absorp
- 0.3V
10 Days
(Displayed as
“E-Bulk Stage”)
(Displayed as
“E-Absorption Stage”)
(Displayed as
“O-Float Stage”)
(Displayed as
“E-Equalization
Stage”)
Fig 5.2 Charging Curve for 4 Stage Adaptive Charging Prole in Equalization Mode
LEGEND for Fig 5.1
Voltage Curve
Current Curve
NOTE 1: The voltage curve shows the voltage output of charger. The intrinsic battery voltage
may be different and will be proportional to the state of charge.
SECTION 5 | Battery Charging in Evolution
TM
Series