8. Never use or charge batteries if you suspect that it has
been more than 12 months since the last time they were
charged. There is a high probability that the battery pack
has already suffered dangerous damage (exhaustive
discharge).
9. Charging batteries at a temperature below 41°F (5°C) will
cause chemical damage to the cells and may cause a fire.
10. Do not use batteries that have been exposed to heat
during the charging process, as the battery cells may have
suffered dangerous damage.
11. Do not use batteries that have suffered curvature or
deformation during the charging process or those that
exhibit other atypical symptoms (gassing, hissing,
cracking, etc.).
12. Never fully discharge the battery pack (maximum
recommended depth of discharge is 80%). A complete
discharge of the battery pack will lead to premature aging
of the battery cells.
Protection from environmental influences
1. Wear suitable work clothes. Wear safety goggles.
2. Protect your cordless tool and the battery charger from
moisture and rain. Moisture and rain can cause dangerous
cell damage.
3. Do not use the cordless tool or the battery charger near
vapors and flammable liquids.
4. Use the battery charger and cordless tools only in dry
conditions and at an ambient temperature of 41°F – 105°F
(5°C – 40.5°C).
5. Do not keep the battery charger in places where the
temperature is liable to reach over 104°F (40°C).
In particular, do not leave the battery charger in a car that
is parked in the sunshine.
6. Protect batteries from overheating. Overloads,
overcharging and exposure to direct sunlight will result
in overheating and cell damage. Never charge or work
with batteries that have been overheated – replace them
immediately, if possible.
7. Store the charger and your cordless tool only in dry
locations with an ambient temperature of 40°F – 105°F
(4.5°C – 40.5°C). Store your lithium-ion battery pack in a
cool, dry place at a temperature of 50°F – 68°F
(10°C – 20°C). Protect the battery pack, charger and
cordless tool from humidity and direct sunlight. Only place
fully charged batteries in storage (charged to at least 40%).
8. Prevent the lithium-ion battery pack from freezing.
Battery packs that were stored below 32°F (0°C) for more
than 60 minutes must be discarded.
9. When handling batteries, be wary of electrostatic
charge. Electrostatic discharges can damage the
electronic protection system and the battery cells. Avoid
electrostatic charging and never touch the battery poles.
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