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Battery Maintenance and Storage
Maintaining Batteries
Follow these guidelines to maintain performance of Lithium-Ion (Li-on) batteries.

Avoid exposing batteries to extremely hot or cold temperatures for long periods. To prevent
possible damage to the battery, the Duo-Touch does not allow the battery to charge if the
internal temperature of the battery gets too low (< 5
°
C or < 41
°
F) or too high (> 50
°
C or >
122
°
F).

Charge the battery nightly where the temperature will remain around 20
°
C (68
°
F).

Re-calibrate your battery every three months or when your battery performance degrades.
Storing Batteries

Store the battery within the recommended temperature range: 10
°
C to 30
°
C (50
°
F to 86
°
F).

Unused or stored batteries can lose power over time. When you install a battery that has not been
used for awhile, connect external power to the computer and charge the battery.

After storage, battery calibration may increase its capacity.