Battery/Charging System Service Information - Honda CRF450X 2005 Service Manual

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BATTERY/CHARGING SYSTEM
SERVICE INFORMATION
GENERAL
AWARNING
• The battery gives off explosive gases; keep sparks, flames and cigarettes away. Provide adequat e ventilation when
charging.
• The battery contains sulfuric acid (electrolyte). Contact with skin or eyes may cause severe burns. Wear protective
clothing and a fa ce shield.
- If electrolyte gets on your skin, flush with water.
- If electrolyte gets in your eyes, flush with water for at least 15 minutes and cal l a physician immediately.
• Electrolyte is poisonous.
- If swallowed, drink large quantities of water or milk and call your local Poison Control Center or a physician
immediately.
• For extended storage, remove the battery, give
it
a full charge, and store it in a cool, dry space.
• For a battery remaini ng in a stored motorcycle, disconnect the negative battery cable from the battery terminal.
• The battery sealing caps should not be removed. Attempting to remove the sealing caps from the cells may damage the
battery.
• The maintenance free battery must be replaced when it rea ches the end of its service life.
• The battery can be damaged if overcharged or undercharged, or if leh to discharge for a long period. These same con-
ditions contribute to shortening the life span of the battery. Even under normal use, the performance of the battery
deteriorates after
2-3
years.
• Battery voltage may recover after battery charging, but under heavy load, battery voltage will drop quickly and eventu·
ally die out, For this reason, the charging system is often suspected as the problem. Battery overcharge often results
from problems in the battery itself, which may appear to be an overchargi ng symptom. If one of the battery cells is
shorted and battery voltage does not increase, the regulator/rectifier supplies excess voltage to the battery. Unde r these
conditions, the electrolyte level goes down quickly.
• Before troubleshooting the charging system, check for proper use and maintenance of the battery. Check if the battery
is frequently under heavy load.
• The battery will self-discharge when the motorcycle is not in use. For this reason, charge the battery every 2 weeks to
prevent sulfation from occurr ing.
• Filling a new battery with electrolyte will produce some voltage, but in order to achieve its maximum performance,
always charge the battery. Also, the battery life is lengthened when it is initially charged.
• When checking the charging system, always follow the steps in the troubleshooting flow chart (page 17-5).
• For battery charging, do not exceed the charging current and time specified on the battery. Using excessive current or
extending the charging time may damage the battery.
BATTERY TESTING
Refer to the instructions in the Operation Manual for the recommended battery tester. The recommended battery tester
puts a "load" on the battery so the actual battery condition of the load can be measured.
Recommended Battery Test er : Micro
404Xl
(U .S.A. only), BM-210 o r equivalent
SPECIFICATIONS
TEM
~
f-TuS,
0.1 mA max.
I FuliV
13.0 - 13.2 V
,«
Need~
Below 12.4 V
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m"t
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7.
) 'pm
17-3