C-Pen Reader Pen Quick Start Manual page 9

B
ATTERY MAINTENANCE AND PRECAUTIONS
Battery capacity deteriorates over time. To optimize battery life
time:
•
Charge battery prior to becoming completely empty.
•
Do not expose the battery to heat longer than
necessary (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.
•
E
VEN IF THE DEVICE IS NOT USED FOR A LONGER PERIOD IT
RECOMMENDED TO CHARGE THE BATTERY AT LEAST EVERY THREE
MONTHS
.
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