C-Pen READER 2 Quick Start Manual page 25

Battery capacity deteriorates over time. To optimize bat-
tery life time:
• Charge battery prior to becoming completely empty.
• Do not expose the battery to heat longer than neces-
sary (above 30°C is considered hot).
• Disconnect charger as soon as possible after battery
becoming fully charged.
• Especially do not leave battery flat as it may harm
the battery.
• EVEN IF THE DEVICE IS NOT USED FOR A LONGER PERI-
OD IT'S RECOMMENDED TO CHARGE THE BATTERY AT
LEAST EVERY THREE MONTHS
BATTERY maintenance and
precautions
23
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