100CS Quattro Wagon V6-2.8L (AAH) (1992)
Battery: Service and Repair
Battery, Charging
Tools required
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Battery charger: Christie automotive model 400 QDD or equivalent
NOTE:
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Follow battery charger manufacturer's instructions
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Before testing a battery that has been charged, load battery with 15 amps for 1 minute to remove surface charge
WARNING:
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Gases given off during charging are explosive. DO NOT smoke in rooms containing a charging battery, or have bare light bulbs or any other
source of sparks or flame.
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Battery charger MUST be turned off when connecting or disconnecting cables on battery.
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"Boosting" a sulfated battery at a high charging rate can cause an explosion!
Battery with removable caps
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Remove cell caps while charging. If water is added, fast- charge battery for a few minutes after battery begins gassing (boiling).
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Slow-charging rate should be approximately 10% of battery capacity (example: with a 45 amp-hour battery, slow-charging current should be
about 4.5 amp).
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Fast-charging rate should be approximately 80 - 90% of battery capacity.
CAUTION:
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Batteries may be damaged by fast-charging. It should be used only as a last alternative, when slow charging is not possible.
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DO NOT allow battery charging voltage to exceed 17 volts.
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If battery begins gassing (boiling) violently when charging, REDUCE charging rate.
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DO NOT disconnect the battery while the engine is running.
Charge battery according to following table:
Specific gravity
Fast charge up to:
1.150 or less
1 hour
1.150 to 1.175
3/4 hour
1.175 to 1.200
1/2 hour
1.200 to 1.225
1/4 hour
above 1.225
Slow charge ONLY
to 1.250 - 1.280
Sealed Batteries:
Tools required
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SUN Model VAT-40, BEAR Model 42-210, CHRISTIE AUTOMOTIVE Model 400 QDD or equivalent
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Only slow-charge sealed batteries.
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Sealed batteries, often called "maintenance-free" batteries, will not accept a high rate of charge. It may be necessary to charge them for up to twice
as long as batteries with removable caps.
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Voltage will NOT increase as rapidly as when charging batteries with removable caps.