Westfalia ASS 18 BL 4K Manuel D'instructions page 22

 Do not leave batteries on charge for extended periods and never
store batteries on charge.
 The battery charger monitors battery temperature and voltage while
charging. Remove the battery once charging has been completed to
maximise charge cycles of the battery and not waste power.
 Batteries can become faulty over time, individual cells in the battery
can fail and the battery could short. The charger will not charge
faulty batteries. Use another battery, if possible, to check correct
functionality of the charger and purchase a replacement battery if a
faulty battery is indicated.
 Do not store Lithium-Ion battery packs in a discharged state long
term. This can damage the Lithium-Ion cells. For long-term storage,
store batteries in a high charge state disconnected from the power
tool.
 The capacity of batteries will reduce over time. After 100 charge
cycles, the battery's operation time and the maximum torque per-
formance of the tool will slightly reduce. This decline will continue
until the battery has minimal capacity after 500 charge cycles. This
is normal and not a fault with the battery pack.
Fitting a Driver Bit
WARNING: Do not fit any attachment with a maximum speed lower
than the no load speed of the machine.
1. Attach a tool with a ½'' connection to the ½'' tool holder (1) on the
impact driver.
2. Pull on the bit to check that it is securely fitted. If the bit is not
secure, repeat the above procedure.
Note: Make sure sockets, tool bits and other accessories used are
hardened and suitable for use with an impact driver.
Operation
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