User's Manual

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.