MAINTENANCE AND ADJUSTMENT OF EV CU800 Service Manual
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• Never remove the MF battery sealing caps.
• Do not use a high-rate battery charger since
it forces a high-amperage current into the
battery quickly and can cause battery
overheating and battery plate damage.
• If it is impossible to regulate the charging
current on the battery charger, be careful
not to overcharge the battery.
• When charging a battery, be sure to remove
it from the vehicle. (If charging has to be
done with the battery mounted on the
vehicle, disconnect the negative battery
lead from the battery terminal)
• To reduce the chance of sparks, do not plug
in the battery charger until the battery
charger leads are connected to the battery.
• Before removing the battery charger lead
clips from the battery terminals, be sure to
turn off the battery charger.
• Make sure the battery charger lead clips are
in full contact with the battery terminal and
that they are not shorted. A corroded
battery charger lead clip may generate heat
in the contact area and a weak clip spring
may cause sparks.
• If the battery becomes hot to the touch at
any time during the charging process,
disconnect the battery charger and let the
battery cool before reconnecting it. Hot
batteries can explode!
• As shown in the following illustration, the
open-circuit voltage of an MF battery
stabilizes about 30 minutes after charging
has been completed. Therefore, wait 30
minutes after charging is completed before
measuring the open-circuit voltage.
Charging method: using a variable-current (voltage) charger
NOTE
• Leave the battery unused for more than
30 minutes before measuring its open-
circuit voltage.
• Set the charging voltage to 16 ~ 17 V. (If the
charging voltage is lower, charging will be
insufficient, if it is higher, the battery will be
over-charged).
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