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Equalization Voltage—equalization voltage is a corrective over-charge of the battery. The
user should consult their battery manufacturer regarding specific battery equalization capacity.
This parameter sets the equalization voltage to set the battery at when it reaches the
equalization state.
Boost Voltage—users should check with their battery manufacturer for proper charging
parameters. In this stage, users set the boost voltage where the battery will reach a voltage level
and remain there until the battery undergoes an absorption stage
Float Voltage—once the charge controller recognizes the set float voltage, it will commence
floating. The battery is supposed to be fully charged in his state, and the charge current is
reduced to maintain battery stability levels.
Charging Parameters Glossary
Charging Stages
Battery Charging Parameters
Soft-Charge
Bulk
Absorption
@ 25°C
Equalization
Calcium = every charging cycle
Float
Under Voltage Recharging
Wet (Flooded)
15.5V
Calcium
15.5V
Li-ion
N/A
LiFePO4
N/A
LTO
N/A
GEL
13.6V
AGM
13.6V
WET
13.6V
CALCIUM
13.6V
Li-ion
12.0V
LiFePO4
13.4V
LTO
13.4V
GEL
12.8V
AGM
12.8V
WET
12.8V
CALCIUM
12.8V
Output battery voltage is 3V-10VDC,
Current = half of the solar panel current
10VDC to 14VDC
Current = Rated Charge Current
Li-ion
12.6V
LiFePO4
14.4V
LTO
14.0V
AGM
14.4V
WET
14.7 V
CALCIUM
14.9 V
GEL
14.1V
Constant voltage until current drops to 0.75/1.0 amps and
holds for 30s.Minimum 2 hours charging time and maximum
4 hours’ time out If charging current < 0.2A, stage will end.
Only Wet (Flooded) or Calcium Batteries will equalize, 2
hours maximum
Wet (Flooded) = if discharge below 11.5V OR every 28
days charging period.
16
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