Suggested Battery Charger Set Points - Outback Power Systems MX60 Installation, Programming, And User's Manual

SUGGESTED BATTERY CHARGER SET POINTS

The battery manufacturer should provide you with specifi c instructions on the following mainte-
nance and voltage set point limits for the specifi c batteries. The following information can be used
when the manufacturer's information is not available.
SEALED LEAD ACID – AGM / GEL
ABSORB voltage set point
FLOAT voltage set point
NON-SEALED LEAD ACID
ABSORB voltage set point
FLOAT voltage set point
Note: Higher settings can be used with non-sealed batteries, but water consumption will be
greater and excessive temperatures when recharging may occur.
Battery Voltage and State of Charge
A battery's voltage can be used as a guideline to estimate the amount of power stored in the
battery that is available for use. When referencing the battery voltage on the display, be sure the
battery is not under signifi cant recharging or heavy loads. Otherwise, the DC voltage is not refl ec-
tive of the battery state of cycle. Often the best time to check the battery voltage is in the morning
(pre-charging) or at night (postcharging), with the battery disconnected from charging sources
and loads and a rest for at least three hours.
Operation of a battery below 50% state of cycle will adversely aff ect the long term health of the
battery system and will result in premature failure. Keeping the battery above the 50% level and
recharging it completely once a month will ensure proper operation and good performance.
STATE OF CHARGE
Nominal Battery
Voltage
12v
24v
48v
60v
86
12 V
14.4 V
13.4 V
14.8 V
13.8 V
Charged Good (~75%)
over 12.6v 12.3v
over 25.2v 24.6v
over 50.4v 49.2v
over 63.0v 61.5v
24 V
28.8 V
26.8 V
12v 24v
29.6 V
27.6 V
Average (~50%) Low (~25%) Discharged
12.0v 11.7v
24.0v 23.4v
48.0v 46.8v
60.0v 58.5v
48 V
57.6 V
53.6 V
48v
59.2 V
55.2V
under 11.4v
under 22.8v
under 45.6v
under 57.0v
OutBack Power Systems Inc.