Piper SARATOGA PA-32-301 Maintenance Manual page 210

PIPER AIRCRAFT
PA-32.301/301T
MAINTENANCE MANUAL
CHARGING BATTERY.
If the battery is not up to normal charge, remove the battery and recharge starting with a charging rate of 4
amps and finishing with 2 amps. A fast charge is not recommended.
CHART 2405. HYDROMETER READING AND BATTERY CHARGE PERCENT
Hydrometer Reading
Percent of Charge
1280
100
1250
75
1220
50
1190
25
1160
Very little useful capacity
1130 or below
discharged
BATTERY BOX CORROSION PREVENTION.
The battery should be checked for spilled electrolyte or corrosion at least each 50 hour inspection or at
least every 30 days, whichever comes first. Should this be found in the box, on the terminals or around the
battery, the battery should be removed and both the box and battery cleaned by the following procedure:
1. Remove the box drain cap from the under side of the fuselage and drain off any electrolyte that may
have overflowed into the box.
- CAUTION -
Do not allow soda solution to enter battery.
2. Clean the battery and the box. Corrosion effects may be neutralized byapplyinga solution of baking
soda and water mixed to a consistency of thin cream. The application of this mixture should be applied until all
bubbling action has ceased.
3. Rinse the battery and box with clean water and dry.
4. Place the cap over the battery box drain.
5. Reinstall the battery.
VOLTAGE REGULATOR.
CHECKING VOLTAGE REGULATOR.
The regulator is a fully transistorized unit in which all of the components are encapsulated in epoxy.
which makes field repair of the unit impractical, and if it does not meet the specifications, it must be replaced.
The regulator may be tested by the following procedure:
1. Be sure that the battery is fully charged and in good condition.
24-34-01
Page 24-45
Revised: August 23, 1982
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