Piper Aircraft Corporation Malibu Mirage PA-46-350P, Airplane Maintenance Manual

Page: 429 / 1956

PAGE 13
Feb 28/07 2I7
24-30-00
PIPER AIRCRAFT, INC.
PA-46-350P, MALIBU MIRAGE
MAINTENANCE MANUAL
CHART 2 (Sheet 1 of 2)
TROUBLESHOOTING (BATTERY SYSTEM)
Trouble Cause Remedy
Battery installed with Battery charged backwards. Remove battery. Connect
reversed polarity. load, such as landing light
lamp or similar load, and
discharge battery.
Recharge with correct
polarity and test each cell
for signs of damage due to
reversed charging. Reinstall
with corrected polarity.
NOTE: This type of condition can only occur in a case where a discharged battery has been removed
from the airplane and put on a charger with the polarity reversed. This reversal in polarity cannot
occur in the airplane due to any fault in the alternator system.
Battery will not hold charge. Battery worn out. Replace battery.
Standing too long. Remove and recharge
battery if left in unused
airplane one week or more.
Equipment left “ON” Remove and recharge.
accidentally.
Impurities in electrolyte. Replace battery, clean and
recharge acid recovery jar.
Short circuit (ground) Check wiring.
in wiring.
Broken cell partitions. Replace battery, clean and
recharge acid recovery jar.
Battery life is short. Overcharge due to level Maintain electrolyte level.
of electrolyte being below Clean and recharge acid
tops of plates. recovery jar.
Heavy discharge. Replace battery, clean and
recharge acid recovery jar.
Sulfation due to disuse. Replace battery, clean and
recharge acid recovery jar.
Impurities in electrolyte. Replace battery, clean and
recharge acid recovery jar.
Cracked cell. Hold down was loose. Replace battery and
tighten, clean and recharge
acid recovery jar.
Frozen battery. Replace battery, clean and
recharge acid recovery jar.