Two-stage charging, Charge algorithm graph, Charge algorithm definitions – Xantrex Technology RS3000 User Manual
Page 109: Figure b-1
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 Graph
Charge Algorithm Definitions
Table B-1 Battery Defaults
Figure B-1 Three-Stage Charging Profile
Voltage
Flooded (or wet)
Gel
AGM
V
A
Absorption Voltage (VDC)
14.4
14.4
14.3
V
G
Gassing Voltage (VDC)
13.5
13.8
13.45
V
F1
Float Voltage (VDC)
13.5
13.8
13.45
V
F2
Float Exit Voltage (VDC)
12.5
12.5
12.5
I
H
I
B
V
F2
V
F1
V
G
V
A
Float
Time
T
CV
T
A
T
F
Bulk
Absorption