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Battery Care & Maintenance
The Basics
| In Vehicle Service Tips |
Check The Charging System
Check The State Of Charge |
Always Load Test | Charging Tips
Select The Proper Size Battery |
Installation Tips
Jump Starting Your Battery Safely

The Basics:
Be Careful!
Batteries produce explosive gases. Keep sparks,
flames and cigarettes away from batteries at all times. Protect your eyes at all
times. Never lean over battery when jump starting or performing other
maintenance.
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In Vehicle
Service Tips:
Remember...always wear safety glasses when
working around batteries!
The first step to routinely servicing a battery
is to make a visual inspection. Look for defective cables, loose connectors,
corrosion, cracked cases or covers, loose hold-downs, and deformed or loose
terminal posts.
Remove and replace a battery at once if there are
cracks in cover or case. Place the leaking battery in a plastic bag and take it
to a battery seller for proper recycling.
To remove corrosion and dirt from terminal posts,
hold-downs, tray or hold-down parts, scrape or brush it off. Use a corrosion
removing spray or immerse the part in an alkaline solution such as baking soda
in the proportions of one pound to a gallon of water. The corrosion is
neutralized when the solution stops bubbling. Wash the part with water, dry,
replace and apply a prepared corrosion protection spray.
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Check The
Charging System:
The voltage regulator should be checked every
10,000 miles or every time you change oil. It should be checked immediately if
the battery is hot to the touch, if electrolyte is bubbling or spewing from the
vents, if your hydrometer reading is below 1.225 or above 1.300, or if the open
circuit voltage is below 12.4 volts or above 12.9 volts. Overcharging is evident
by excessive water consumption and/or spewing or bubbling of electrolyte out of
the vents. Undercharging is evident by slow cranking or lights dimming at idle.
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Check The
State Of Charge:
There are two styles of battery...non-accessible
maintenance-free types and accessible maintainable types with removable
vent caps.
Before adding water to a maintainable battery,
take an open circuit voltage reading and/or hydrometer reading of one cell. Use
a different cell each time. If the readings are above 12.4 volts or 1.225 SG,
the battery is fine. If the readings are below 12.4 volts or 1.225 SG, charge
the battery. If the electrolyte level is too low to read with a hydrometer, add
water and take the hydrometer reading the following day, after the vehicle has
been driven and the water has had the opportunity to mix. Check the electrolyte
levels in all cells. If necessary, add only clear, odorless drinking water to
bring the liquid level to the level indicator or to 1/2" above the top of
the separators. Distilled water is preferred, especially if the water in your
area has high iron. Do not overfill any cells. Excess electrolyte may be
forced from an overfilled cell and cause corrosion on adjacent metal parts,
reduce performance, and shorten life. In cold weather, do not fill cells with
water and let stand without running engine or driving the vehicle long enough to
allow water to mix with acid. Otherwise, freezing may occur and the battery will
crack.
Maintenance-free, non-accessible batteries
are designed to eliminate the need to add water. Yet the volume of electrolyte
above plates may eventually become depleted due to abnormal conditions such as
high heat or improper regulator setting. Use a voltmeter to check the state of
charge. DO NOT OPEN FLUSH COVER BATTERIES! If opened, serious personal injury
can result.
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Always Load Test:
Follow-up your hydrometer or open circuit voltage
test with an adjustable load test to determine if the battery has adequate
electrical performance. Follow the instructions on the tester or ask your
favorite service facility to load test your battery. If the battery maintains a
minimum "on load" voltage of 9.6 volts for 30 seconds, it is in good
condition. If not, recharge and load test again. If it fails a second time, REPLACE
THE BATTERY IMMEDIATELY.
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Charging Tips:
Leave vent caps in place while charging.
Batteries should be charged if hydrometer reading
is below 1.225 SG, or 12.4 open circuit volts, or the load test is below 9.6
volts.
Do Not Leave A Battery On Charge For More Than
48 Hours.
Stop the charge when two hydrometer or voltage
readings recorded two hours apart indicate no increase. Further charging would
be useless and may damage the battery and shorten it's life. If the battery
won't come up to full charge (1.260 SG or 12.6 volts), replace it.
If violent gassing or spewing of electrolyte
occurs, or the battery case feels hot, reduce or temporarily halt charging to
avoid damaging the battery.
Never attempt to charge a frozen battery! Allow
it to warm to 60 degrees F before placing on charge. Otherwise a dangerous
explosion can occur. Never leave a battery on a trickle charger longer than
48 hours. Otherwise, serious damage will occur.

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Select
The Proper Size Battery:
Always select a battery that has enough cranking power and
reserve capacity to get the job done. Consider the vehicle manufacturer's
recommended capacity to be a minimum capacity guideline.
Along with electrical accessories, temperature also has a
dramatic effect on battery performance. Vehicles that are operated in extremely
hot or cold climates will need a battery that's rated well above the minimum O.E.
recommendation. Remember, you can't select a battery with too much power!
Temperature
has a dramatic effect on a battery's ability to crank an engine. Not only
does cold rob batteries of power, it also stiffens motor oil, making engines
harder to start. And heat can damage batteries by causing internal components to
wear out quickly while also making engines difficult to start...So do yourself a
favor, select the higher capacity, more powerful batteries you'll need to tackle
demanding climates.
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Installation Tips:
Wear safety glasses. Special care must be
taken when installing a battery to avoid a serious explosion or accident.
If available, a computer memory saver should be
used to save the vehicle's memory and avoid having to reprogram. Follow the
manufacturers directions carefully to avoid damage to the computer and/or
electrical system.
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Mark the positive (POS) cable. Turn off all
electrical accessories. Disconnect hood & trunk bulb if opened to cut
off all current.
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Carefully remove old battery, disconnecting
the ground cable first, to avoid any dangerous sparking around the
battery.
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Battery tray should be thoroughly cleaned and
inspected for defects. Use a paste made from baking soda and water to
neutralize any acid or corrosion. Repaint if necessary. It should be held
fast to supporting members to prevent vibration and road shock. Replace tray
if necessary.
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The battery should rest level in the tray. Be
sure terminals will clear hood, fender, etc.
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The hold-down must be tightened until it is
snug. Do not over tighten. Too much pressure on the battery case will cause
damage to it internally and externally...causing an acid leak.
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Cable terminals should be brushed until shiny
and spread wide so that they will slip over the battery post without force.
Do not hammer on them. Be sure marked POS cable is connected to POS (+)
terminal. Connect NEG (-) cable last to prevent dangerous sparks. DO
NOT OVER TIGHTEN! It's a good idea to install special corrosion retarding
fiber washers around terminals to help extend battery life.
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Side terminal batteries need special care. Over tightening
the terminal bolts will severely damage the battery and could cause a
dangerous explosion. Use a special side terminal torque tool to avoid
this hazard.
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Coat the terminals and exposed metal parts
around the battery with a good quality protective spray.
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Jump
Starting Your Battery Safely:
Shield
eyes and face from batteries at all times! Be sure vent caps are tight and
level. Place damp cloth over vent caps on both batteries. Be sure vehicles do
not touch. Use a good quality booster cable set.
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Connect positive (+) cable to positive post
of discharged battery wired to starter or solenoid.
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Connect other end of same cable to same
marked post (positive) of booster battery.
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Connect second cable (negative -) to other
post of booster cable.
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Make final connection on engine block of
stalled vehicle away from battery - stand back.
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Start both vehicles and remove cables in
reverse order of connection.

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