Battery Charging Reference
975-0170-01-01 B–5

Two-Stage Charging

If the two-stage charge is enabled, the charger finishes the absorption
charge but does not go to float mode because some battery manufacturers
advise against floating their batteries. The RS3000 goes into a monitoring
mode instead where the charger monitors the batteries but does not float
them.
A new two-stage charge cycle will be initiated under the same conditions
as for three-stage charging.
Charge Algorithm GraphCharge Algorithm Definitions
Table B-1
Battery Defaults
Figure B-1
Three-Stage Charging Profile
Voltage Flooded (or wet) Gel AGM
VAAbsorption Voltage (VDC) 14.4 14.4 14.3
VGGassing Voltage (VDC) 13.5 13.8 13.45
VF1 Float Voltage (VDC) 13.5 13.8 13.45
VF2 Float Exit Voltage (VDC) 12.5 12.5 12.5
IH
IB
VF2
VF1
VG
VA
Float
Time
TCV
TATF
Bulk Absorption