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GEL BATTERIES
The following paragraph provides general information on gel batteries.
For more detailed information, refer to the supplier of the installed battery.
It is possible to install and use GEL batteries on the forklift truck; always adapt their weight so as to
respect the minimum weight required, as indicated in the table in the paragraph "BATTERY CASE AND
REQUIRED WEIGHTS".
In GEL batteries the electrolyte is immobilized (sulphuric acid in gel form), unlike traditional batteries
where the electrolyte is in liquid form.
Notes: In GEL batteries the density cannot be measured.
In place of the caps, valves are fitted which perform the function of adjusting the internal pressure of the
elements, opening in the event of excess pressure to let out the excess gases developed during
charging and, at the same time, preventing the oxygen in the atmosphere from getting inside.
MAINTENANCE
The GEL battery does not need intense maintenance like traditional batteries.
• The battery never needs topping up.
• The valve caps must not be removed.
If the valves should accidentally be damaged, contact the service centre of the battery supplier to have
them replaced.
The battery must be kept clean and dry to prevent current leakage. Any liquid present inside the battery
box must be removed. Immediately repair any breaks in the coating of the case, to prevent drops in
insulation and corrosion of the case. If this operation requires the removal of the elements, call the
service centre of the battery supplier.
Every month, at the end of charging and with the battery disconnected from the battery charger, check
the battery voltage and the voltage of every single element, recording it on a special chart.
If a significant variation is found with respect to the previous record, carry out a new series of checks on
the data found and, if necessary, request the intervention of the service centre of the battery supplier .
If the autonomy is not sufficient, proceed as follows:
• Check that the work being done is compatible with the battery capacity;
• Check the state of the rectifier;
• Check the discharge limiter.
DISCHARGE
In order to guarantee a good battery life, the battery must not be discharged below 80% of the rated
capacity (full discharge) which corresponds to 1.83 V per element.
Notes: It is important for the battery temperature to remain between +5°C and + 35 °C during the
work cycle. The battery life will be optimal with a temperature between 25-30 °C.
CHARGE
The complete charge of the battery must be carried out at the end of every shift. Do not leave the
batteries discharged for long periods of time.
The batteries must be charged using high-frequency battery chargers indicated by the battery supplier;
choosing a rectifier different from the one indicated by the supplier may cause damage to the battery.
The room where the battery is being charged must be ventilated.
Notes: It is necessary to wait a sufficient time for the battery to cool before using it once
charging is complete.
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