Leica M 240 Instructions Manual page 19

Notes:
• The battery should be charged before the camera is used for the
first time.
• The battery must have a temperature of 10°-30°C to be charged
(otherwise the charger will not turn on, or will turn 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.
• The batteries warm up during the charging process. This is
normal and not a malfunction.
• If the two LEDs on the charger flash rapidly (> 2Hz) after starting
charging, this indicates a charging error (e.g. maximum charging
time exceeded, voltages or temperatures outside the permitted
ranges, or short circuit). In this case, disconnect the charger
from the mains and remove the battery. Ensure that the above
temperature conditions are met and then restart the charging
process. If the problem persists, please contact your dealer, the
Leica office in your country or Leica Camera AG.
• A new battery only reaches its full capacity after it has been fully
charged and – by use in the camera - discharged again 2 or 3
times. This discharge procedure should be repeated every 25
cycles. To ensure a maximum service life of the battery, it should
not be exposed to constant extremes of temperature (e.g. in a
parked car in the summer or winter).
• Even when used in optimum conditions, every battery has a
limited service life. After several hundred charging cycles, this
becomes noticeable as the operating times get significantly
shorter.
• The battery should be replaced after a maximum of four years,
as its performance deteriorates and reliable operation can no
longer be guaranteed, particularly in cold conditions.
• Defective batteries should be disposed of according to the
respective instructions (see p. 233).
• The replaceable battery provides power to a back-up battery
which is permanently fitted in the camera. This back-up battery
retains the set date and time for up to 2 months. If this back-up
battery becomes discharged it must be recharged by inserting
the replaceable main battery. Once the replaceable battery has
been inserted, the full capacity of the back-up battery is
recovered after about a few days. This process does not require
the camera to be turned on.
EN
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