Diagnosis And Troubleshooting; General Troubleshooting; Battery - Ezgo 1600xd Repair Manual

ELECTRIC SYSTEM - DIAGNOSIS AND TROUBLESHOOTING

7. DIAGNOSIS AND TROUBLESHOOTING

7.1 GENERAL TROUBLESHOOTING

7.1.1 BATTERY

This vehicle is equipped with 12 V battery with mini-
mum cold cranking ability of 630 A at -18°C.
The battery is located in the middle fender on the left
side of the seat. It should be fi rmly fi xed with no corro-
sion.
If needed, clean the battery surface with baking soda
and water and be careful not to get undistilled water
into the battery.
After cleaning, rinse the battery and apply a small
amount of grease to prevent the terminals from corrod-
ing.
The battery should maintain its charging status even
at the freezing point. If the battery is discharged or the
battery fluid is insufficient, the electrolyte may be di-
luted or frozen. This may lead to damage to the case.
SUUV-W00 Apr. 2011
● CAUSES OF BATTERY EXPIRATION
The causes for battery failure can be divided into the
following three causes:
1. Overly discharged
The specifi c gravity of electrolyte is too low and the terminal
voltage is not measurable.
Cause
• Self-discharge:
If the battery is left unused for 2 ~ 3 months, it will
fully discharge.
• Closed circuit (battery surface):
Due to the electrolyte or water on the battery cov-
er, a closed circuit is formed between the positive
and the negative terminals and, consequently, the
battery will fully discharge.
2. Over charging
If the battery is charged for over the specifi ed time, the
electrolyte's temperature rises and the amount of electro-
lyte decreases.
UUVWA55A
(If this happens frequently, the battery life is short-
ened.)
3. Battery life
If the charged and discharged conditions are repeated,
the amount of activated material and the specifi c gravity
decrease due to the chemical reaction among the positive
terminal, negative terminal and electrolyte.
12
-49