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OutBack Power Systems Inc.
Figure 7 MX60 MULTI-STAGE BATTERY CHARGING
The MX60 charge controller is a sophisticated, multi-stage battery charger that uses several regula-
tion stages to allow fast recharging of the battery system while ensuring a long battery life. This
process can be used with both sealed and non-sealed batteries. The MX60 has a preset recharg-
ing voltage set points (Absorb & Float) for the selected nominal battery voltage, however, always
follow the battery manufacturer’s recommended charging regulation voltages. The MX60 charging
regulation stages correspond to the chart in Figure 7.
BULK
PV ARRAY VOLTAGE
FLOAT
50
45
40
35
30
25
20
S
N
O
O
Z
E
S
N
O
O
Z
E
ABSORB
SLEEP
Z
Z
Z
Z
SLEEP
Z
Z
Z
Z
Bulk cycle begins Absorb charge is reached At zero, MX60 goes into FLOAT
Timer starts Timer begins counting to zero