Regal 53 SC Owner's Manual page 68

CAUTION
!
AVOID EYE DAMAGE/SKIN BURNS!
WEAR GOGGLES & RUBBER GLOVES
WHEN WORKING WITH BATTERIES.
AVOID CONTACT WITH SKIN,
CLOTHING OR EYES.
IN CASE OF CONTACT,
FLUSH WITH WATER
FOR AT LEAST 15 MINUTES.
IF SWALLOWED,
DRINK LARGE QUANTITIES
OF WATER OR MILK.
FOLLOW WITH MILK OF MAGNESIA,
BEATEN EGG OR VEGETABLE OIL.
GET MEDICAL ATTENTION IMMEDIATELY.
CAUTION
!
TO PREVENT BATTERY ARCING
FIRST REMOVE THE NEGATIVE BATTERY
CABLE FROM THE BATTERY.
POSSIBLE PROBLEMS/SOLUTIONS
1. Weak battery- The AGM engine
cranking batteries require no water. They
do feature a different chemistry that does
consume less water. Inside the cells as
gases are released condensation is formed
which aids in maintaining the cell electrolyte level. These
batteries incorporate a deeper layer of electrolyte over the
plates, but eventually it can run dry. On the 31 series engine
cranking batteries keep all terminals clean, connections
tight and your electrical system in top shape to extend the
battery life.
2. Dead Battery- Either the AGM battery will not accept
a charge, hold a charge or the charging system is not
supplying a charging current through the battery charging
system and/or engine alternators.
The battery charger output can be checked by monitoring
the lights on the charger front face.
To begin with check the battery post connections for
tightness and corrosion.
With the engines running the displayed voltage of the port
or starboard engine battery and house battery should be
between 12.5 up to 14.6 volts. If less than 12 volts check
for voltage across the battery terminals.
Note: If one of the house batteries goes "dead" it is
recommended that the entire battery bank be replaced.
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Chapter 4