Leica X-U 113 Instructions Manual page 112

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
0°C and 35°C/32°-90°F (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 reaction. This reaction is influenced by ambient
temperature and humidity. To maximize the life of the battery, it
should not be exposed to extremely high or low temperatures for
long periods (e.g. in a parked car in summer or winter).
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• Even under perfect conditions of use, every battery has a limited
service life. After several hundred charging cycles, operating times
become significantly shorter.
• In line with the applicable regulations, batteries should be disposed of
at an appropriate collection point for proper recycling.
• The rechargeable 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 runs out it must be recharged by inserting a charged main
battery. Once the rechargeable 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, the date and time will have to be set again.
• Remove the battery if you will not be using the camera for a long
period of time. Turn the camera off using the main switch before
removing the battery. Failing to do so would result in a deep
discharge of the rechargeable battery, as the camera uses a low
no-load current (to save the settings) even when it is turned off.