Battery and Charger
MERGE 11-9
Chapter 11
Battery troubleshooting diagram
Fig 11-7: Battery troubleshooting diagram
The vehicle performance falls short of expectation
Fully charge the battery
Inspect and test the battery charger
The reading is lower than 6A and the
charging voltage is higher than 56V.
The reading is not lower than 6A.
Charging voltage inspection
Inspect the electrical system and the charger fo
defects. Please refer to “troubleshooting guide”.
In case no problem is identified, please proceed
with the charging voltage inspection.
All the readings are lower than 9.3V, but the
difference of any two readings doesn’t exceed 0.7V
In case the reading of any single battery is lowe
than 9.3V, and its difference with the battery that has
a voltage of over 9.3V exceeds 0.7V, the battery
should be replaced.
ll the readings are higher than 9.3V, but the
difference of any two readings doesn’t exceed 0.7V
It may be used battery. Carry out hydrometer test.
Hydrometer test
Replace the battery that the specific gravity of two
batteries exceeds 50 or has no readings.
The whole set of battery of which the specific
gravity reading is lower than 1.250 is usually
undercharged. Evaluate charging operation.
No remarkable problem
Discharge inspection
In case the discharge time is shorter than 60
minutes, all batteries are lower than 6.7V.
In case the discharge time is not shorter than 60
minutes, the problem is not with battery.
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