MAINTENANCE
ODYSSEY is very different from standard liquid-acid batteries that are openly vented.
ODYSSEY is and operates as a sealed battery, recycling all gases internally. There is no
c
orrosion of the positive terminal or corrosion to the surrounding area. ODYSSEY is shipped
f
ully charged from the factory, but prior to installation, check the battery’s voltage to see if it
i
s 12.65 volts or greater. If not, recharge it using the procedure below.
Never attempt to remove the top decal cover, as it will cause the battery to fail.
CHARGING
The state of charge in an ODYSSEYbattery can be determined from the following chart:
Powersport Vehicles - have limited charging systems. To get long life from the ODYSSEY
battery, it is important that the battery is kept near full charge, approximately 12.8 volts. If
there are electrical loads during storage, then the negative battery cable should be
disconnected or an independent float charger used. Low power 2.0 amp chargers for storage
charge will keep a fully charged battery fully charged but cannot recharge if ODYSSEY
becomes discharged.
Racing Vehicles using total loss (no alternator) - standard automotive type chargers are not
designed to return 105-108% of the energy removed. They normally boost charge to 80-95%
and expect the alternator to complete the charge. Special chargers as listed on
www.odysseyfactory.com under “Approved Chargers” specifically designed for ODYSSEY
are required for routine deep discharge applications. They provide the 105-108% recharge
and then switch to storage charge.
To fully charge a PC2150, 20 amps minimum constant voltage is required with charger
voltage within the range of 14.1 V to 14.7V. It is imperative not to exceed15.0V as this will
cause the pressure valves to open and out-gas hydrogen, oxygen and water from inside the
battery. This will shorten the life of the battery and cause premature failure. Some portable
chargers exceed 15.0V, especially two-wheel garage chargers, so charging voltages should
be verified by measuring the charging voltage during the time when the charging amperage
is reducing from full output. The deep cycle charging voltage must be within 14.1V minimum
to 14.7V maximum.
If a standard automotive charger is used to boost charge a discharged battery because of an
accessory left on, it is important to make sure the charging voltage does not exceed 15 volts
during charge. A hand held voltmeter can be used to monitor this periodically. The following
chart provides recharge times under this type of boost charging to an 80-95% recharge and
then allows the vehicle charging system to complete the charge.
Voltmeter Reading State of Charge
12.84 Volts 100%
12.50 Volts 75%
12.18 Volts 50%
11.88 Volts 25%
6
Publication No. 2602-0232, Rev. 2 - September 2005www.odysseyfactory.com
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