Manage forklift batteries carefully

In some sectors, such as construction, sites have closed so trucks are likely to stand idle for several weeks. In these circumstances, following the correct procedures will prevent issues further down the line that could prove time-consuming and costly to rectify.

Stuart Browne, operations director – sales and service at Hoppecke UK, says: “The major risk during a period of inactivity is that batteries left in a discharged or semi-discharged condition will, eventually, suffer from sulphation of the plates, which could reduce capacity or take considerable time and cost to recover.”

To avoid problems and maintain battery condition whilst electric forklifts are standing down, Hoppecke recommends the following steps:

• Make sure that batteries, including any spares that are in use, are fully charged.
• Once charged, top up batteries with deionised or distilled water to the correct level.
• If a battery is left on a truck and not connected to a charger, disconnect the forklift DC plug from the truck.
• Batteries connected to chargers can be left on charge – it is not necessary to switch off chargers once the charge is complete.
• Ensure the mains electricity supply to chargers is maintained.
• Any truck with a fully charged battery must not be used.
• Any auxiliary equipment connected to the battery or truck must be switched off or disconnected – remove the plug to stop the battery from discharging and avoid sulphation.
• If a battery is not left on a truck or connected to a charger, it should be reconnected and undergo a refreshing charge every 3 months.
• The electrolyte level of all batteries, including those which have had a refresh charge, should be checked after 3 months.