Piper Arrow IV Turbo Maintenance Manual page 224

REMOVAL OF BATTERY.
1. Make access to the battery as explained in the Description and Operation section of this chapter.
2. Remove battery box cover.
3. Disconnect the battery cables.
Always remove the ground cable first and install last to prevent
accidental short circuiting or arching.
4. Lift the battery from the box.
INSTALLATION OF BATTERY.
1. Ascertain that the battery and battery box have been cleaned and are free of acid.
2. Install the battery in box.
3. Connect the positive lead to the positive battery terminal and secure.
4. Connect the ground cable to the negative battery terminal and secure.
5. Install the battery box cover and secure with wing nuts.
6. Install access panel or cowl.
CHARGING BATTERY.
If the battery is not up to normal charge, remove the battery and recharge starting with a charging rate of 4
amperes and finishing with 2 amperes. A fast charge is not recommended.
CHART 2405. HYDROMETER READING AND BATTERY CHARGE PERCENT
Hydrometer Reading
1130 or below
PIPER AIRCRAFT
PA-28RT-201 / 201T
*MAINTENANCE MANUAL
—NOTE—
1280
1250
1220
1190
1160
Percent of Charge
Very little useful capacity
1J8
100
75
50
25
discharged
Page 24-37
Revised: February 23, 1979
24-34-04