Product Manual

Configuring Advanced Settings
975-0636-01-01 Rev E 4–17
Two-Stage Two-stage (bulk and absorption only, no float) mode differs from an ordinary
three-stage charge mode in that it does not continuously maintain the battery at
float voltage. Instead, the Conext SW begins charging the battery in bulk mode
whenever the battery voltage drops below the recharge level. While the battery
voltage is above the recharge level, the inverter continues to pass power through
from the AC source to the loads but does not actively charge the batteries.
Equalize-Charging the Batteries
Many battery manufacturers recommend periodic equalize charging to level out
the voltage between individual cells, improving battery performance and
lifespan.
Over time, the battery’s electrolyte can become stratified, causing
inactive areas in the plate material. If this condition is allowed to continue for
extended periods, the battery plates can sulfate and become unusable.
Equalizing the batteries is a controlled overcharging method that mixes up the
electrolyte and reactivates the unused areas of the plate material, restoring
batteries to a full state of charge.
Consult the battery manufacturer’s recommendation for equalize voltage
settings.
Equalization time is fixed at 60 minutes.
Tabl e 4-9 Preset Float Voltage Settings for Different Battery Types
Battery Type
24-Volt Models
Preset Float Voltage
48-Volt Model
Preset Float Voltage
Flooded 27.0V 54.0V
Gel 27.6V 55.20V
AGM 26.8V 53.6V
Custom 27.0V (changeable) 54.0V (changeable)
LithiumIon 26.85V (changeable) 53.6V (changeable)
Table 4-10 Preset Equalization Voltage Settings for Different Battery Types
Battery Type
24-Volt Models
Preset Equalization
Voltage
48-Volt Model
Preset Equalization
Voltage
Flooded 32.0V 64.0V
Gel not applicable not applicable
AGM not applicable not applicable
Custom 32.0V (changeable) 64.0V (changeable)
LithiumIon not applicable not applicable
ConextSWEUROwnersGuide.book Page 17 Thursday, July 23, 2015 3:32 PM