Leica Q Instructions Manual page 148

EN
Notes:
• The battery can only be charged outside the camera.
• Batteries must be charged before starting up the camera.
• For the battery to charge, it must have a temperature of between
10°C and 30°C (otherwise the charger does not turn on or turns
off again).
• Lithium ion batteries can be charged at any time, regardless of
their current charge level. If a battery is only partly discharged
when charging starts, it is charged to full capacity faster.
• Lithium ion batteries should only be stored partly charged, i.e.
not when fully discharged or fully charged. For very long storage
periods, batteries should be charged for around 15 minutes
twice a year to prevent total discharge.
• The batteries warm up during the charging process. This is
normal and not a malfunction.
• A new battery only reaches its full capacity after it has been fully
charged and – by use in the camera – discharged 2 or 3 times.
This discharge procedure should be repeated roughly every 25
cycles.
• Rechargeable lithium ion batteries generate power through
internal chemical reactions. These reactions are also influenced
by the ambient temperature and humidity. To maximize the life of
the battery, it should not be exposed to extremely high or low
temperatures (e. g. in a parked car in summer or winter) for long
periods.
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• Even with optimum conditions of use, every battery has a limited
service life. After several hundred charging cycles, this becomes
noticeable as the operating times become significantly shorter.
• In line with the applicable regulations (see page 135), defective
batteries should be sent to an appropriate collection point for
proper recycling.
• The replaceable battery supplies another back-up battery that is
built into the camera. This back-up battery ensures that the date
and time data entered is retained for up to 2 days. If this back-up
battery becomes discharged it must be recharged by inserting a
charged main battery. Once the replaceable battery has been
inserted, the full capacity of the back-up battery is recovered
after about 60 hours. This process does not require the camera
to be turned on. However, in this case the date and time have to
be entered again.
• Remove the battery if you will not be using the camera for a long
period of time. When doing so, turn the camera off using the
main switch first. Otherwise, after several weeks the battery
could become totally discharged, i.e. the voltage is significantly
reduced, as the camera uses a low no-load current (to save the
settings) even when it is turned off.