Datalogic Memor X3 User Manual page 19

BATTERIES AND MAINTENANCE
Do not use the Memor X3 until batteries are charged for minimum 4
hours.
CAUTION
Risk of explosion if battery is replaced by an incorrect type.
Dispose of used batteries according to the instructions.
CAUTION
Il y a risque d'explosion si la batterie est remplacée par une batterie
de type incorrect.
Mettre au rebut les batteris usagées confor mément aux instructions.
CAUTION
Avoid storing batteries for long periods in a state of full charge or very
low charge.
We recommend charging the battery pack every two to three months
CAUTION
to keep its charge at a moderate level to maximize battery life.
Even if the storage temperature range is wider, in order to achieve
the longest battery life, store the terminal and the spare batteries
between 20 to 30º C (68 to 86º F).
Memor X3 (including spare battery) should be charged at an ambient
NOTE
temperature between 0° to +36 °C (+32° to +97 °F) to achieve the
maximum charging rate. Never charge the main device or spare
batteries in a closed space where excessive heat can build up.
The battery level may display incorrectly for several minutes after the
Memor X3 is disconnected from its charger if the charging cycle is
not completed.
NOTE
The Memor X3 may get warm during charging; this is normal and
does not mean a malfunction.
NOTE
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