Numatic SPN 1804 Owner's Instructions Manual page 7

The SPN 1804 trolley comes with its own stand-alone charger.
Insert the charging lead required for your country into the charger.
Connect the charger to a suitable power supply.
Once mains power is connected the red charging indicator will illuminate.
To ensure a full charge, the battery should be left for a period of 6 hrs.
Once fully charged, disconnect the charging lead from both the power
Recharge the machine fully after its last use.
Do not leave the machine in a discharged state.
If the machine will be standing unused for a period of 30 days or more, then
batteries must be fully charged.
Spare replacement batteries are available from your supplier.
See SPN 1804 Spares list for part numbers.
Under abnormal use;
i.e. leaving the machine without charging for a period of time, we advise
that you disconnect the battery from the machine.
Note:
Charge fully the day before you start using the machine again.
The battery pack comes with a 40 amp safety fuse fitted
Replace the fuse using (208526) Numatic approved part.
supply and the machine.
Batteries should be recharged every three months.
Removing the battery pack fuse
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