Hilti SF 2-A Bedienungsanleitung Seite 46

In order to achieve maximum battery life, stop discharging the battery as
soon as a significant drop in battery performance is noticed.
NOTE
If use continues, further battery discharge will be stopped automatically
before the battery cells suffer damage.
Charge the battery using an approved charger from Hilti designed for use
with Li-ion batteries.
NOTE
– A conditioning charge (as is required with NiCd or NiMH batteries) is
not necessary.
– Interruption of the charging procedure has no negative effect on
battery life.
– Charging can be started at any time with no negative effect on battery
life. There is no memory effect (as with NiCd or NiMH batteries).
– For best results, batteries should be stored fully charged in a cool
dry place. Storing the battery in places subject to high ambient
temperatures (e.g. at a window) has an adverse effect on battery life
and increases the rate of self-discharge.
– If the battery no longer reaches full charge, it may have lost capacity
due to aging or overstressing. It is still possible to work with this
battery. You should, however, soon replace the battery with a new one.
8.4 Maintenance
WARNING
Repairs to the electrical section of the power tool may be carried out
only by trained electrical specialists.
Check all external parts of the power tool for damage at regular intervals
and check that all controls operate faultlessly. Do not operate the power
tool if parts are damaged or when the controls do not function faultlessly. If
necessary, the power tool should be repaired by Hilti Service.
8.5 Checking the power tool after care and maintenance
After carrying out care and maintenance work on the power tool, check that
all protective and safety devices are fitted and that they function faultlessly.
Printed: 24.03.2014 | Doc-Nr: PUB / 5174884 / 000 / 00
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