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3.2 Weekly

Visual inspection after recharging for signs of dirt and mechanical damage.

3.3 Quarterly

After the end of the charge and

After the end of the charge and a rest time of 5 h following should be

a rest time of 5 h following should be measured and

measured and

recorded:

• the voltages of the battery

• the voltages of every cells

If significant changes from earlier measurements or differences between the cells or

If significant changes from earlier measurements or differences between the cells or
bloc batteries are found, further testing and maintenance by the service department

bloc batteries are found, further testing and maintenance by the service department
should be requested.

should be requested.

3.4 Annually

In accordance with DIN VDE 0117 at least

In accordance with DIN VDE 0117 at least once per year, the insulation resistance of

once per year, the insulation resistance of

the truck and the battery must be checked by an electrical specialist.

The tests on the insulation resistance of

The tests on the insulation resistance of the battery must be conducted in accordance

the battery must be conducted in accordance

with DIN 43539-1.

The insulation resistance of the battery thus determined must

The insulation resistance of the battery thus determined must not be below a value of

not be below a value of

Ω

per Volt of nominal voltage, in compliance with DIN EN 50272-3.

For batteries up to 20 V nominal voltage the minimum value is 1000

Ω

4. Care of the battery

The battery should always be kept clean and dry to prevent tracking currents. Clea-

The battery should always be kept clean and dry to prevent tracking currents. Clea-
ning must be done in accordance with the ZVEI code of practice «The Cleaning of

ning must be done in accordance with the ZVEI code of practice «The Cleaning of
Vehicle Traction batteries».

Vehicle Traction batteries».

Any

Any liquid

liquid in

in the

the battery

battery tray

tray must

must be

be extracted

extracted and

and disposed

disposed of i

of in

n the

the prescribed

prescribed man-

man-

ner.

Damage to the insulation of the tray

Damage to the insulation of the tray should be repaired after cleaning, to ensure that

should be repaired after cleaning, to ensure that

the insulation value complies with DIN EN 50272-3 and to prevent tray corrosion. If

the insulation value complies with DIN EN 50272-3 and to prevent tray corrosion. If it

is necessary to remove cells it is best to call our service department for this.

5. Storage

If batteries are taken out of service for a lengthy period they should be stored in the

If batteries are taken out of service for a lengthy period they should be stored in the
fully charged condition in a dry, frost-free room.

fully charged condition in a dry, frost-free room.

To ensure the battery is always ready for use a choice of charging methods can be

To ensure the battery is always ready for use a choice of charging methods can be
made:

made:

1.a quarterly full charging like charge as in point 2.2. If any consumer is connected

1.a quarterly full charging like charge as in point 2.2. If any consumer is connected
with, e.g. measure or controlling systems, it can be, that this charging is necessary

with, e.g. measure or controlling systems, it can be, that this charging is necessary
every 14 days.

every 14 days.

2.float charging at a charging voltage of 2.25 V x the number of cells.

2.float charging at a charging voltage of 2.25 V x the number of cells.
The storage time should be taken into account when considering the life of the batte-

The storage time should be taken into account when considering the life of the batte-
ry

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