Boston Whaler 325 Conquest, Руководство пользователя, Страница: 117 / 207

4-4
Chapter 4 • Electrical
R
325 Conquest
Battery Maintenance
Before use, check each battery and the charging
system for loose wiring connections. Normal
maintenance should include:
• Coat terminals with dielectric grease
• Keep batteries dry
• If not using a sealed battery, check and maintain
water level. Use distilled water only.
• Remove batteries from boat during cold
weather or long term storage.
Draining a battery to zero before recharging can
significantly reduce battery life. When a battery
is totally discharged, the active material on both
positive and negative plates converts to lead sulfate,
causing the plates to become more alike in an
electrical charge. The electricity conducting battery
acid becomes weaker and the voltage drops. As the
battery remains discharged, the process continues
until recharging the battery becomes impossible.
• Never use an open flame in battery storage
area.
• Avoid striking sparks near the battery.
•
Battery will explode if flame or spark ignites
free hydrogen given off during charging.
• Always disconnect battery before doing any
work or maintenance on electrical system.
• Never turn off battery switches or disconnect
battery cables while engines are running.
!
CAUTION
Sometimes a battery may get left off a maintainer.
It is paramount to give it a full charge before
attempting to embark on a voyage. Most batteries
will take 48-96 hours to fully charge depending on
chemistry, technology, depth of discharge, capacity
of maintainer, and general health of the battery. When
preparing to restore batteries back to operation within
the boat, it is paramount to test the batteries to ensure
they are fully functional.
There are two primary aspects to consider - State of
Charge (SOC) and State of Health (SOH). A good
test device will determine if a “surface charge” is
giving a false indication of a good charge state. SOH
is not as common as SOC but does indicate remaining
useful life of the battery. A test device measures the
internal resistance over a frequency range to give you
a SOH reading. While it would be prudent to replace
a battery if SOH is less than 50 percent, do not put
a battery into service that has less than 30 percent
SOH. A battery load tester is a general indicator of a
battery’s ability to provide a cranking current, but it
is not as accurate as actual SOC and SOH readings.
Batteries contain sulfuric acid which can cause
serious injury. Avoid contact with skin, eyes and
clothing. If contact occurs, immediately flush
affected area with large quantities of water and
obtain medical assistance.
!
DANGER