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JANUS? 2020 Hand-Held Computer (4MB) - Intermec

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<strong>JANUS</strong> <strong>2020</strong> <strong>Hand</strong>-<strong>Held</strong> <strong>Computer</strong> User’s Manual (<strong>4MB</strong>)nugg nugg<br />

2-38<br />

These fields help you estimate the power left in the NiCad battery pack:<br />

AC Line Status Tells you if external power is attached to the reader. ONLINE<br />

means the reader is using an external power supply. OFFLINE means the<br />

reader is using the NiCad battery pack for power.<br />

Battery Status Tells you if the NiCad battery pack is high, low, or charging.<br />

High power means the battery pack has more than 50% power remaining. Low<br />

power means there is less than 50% power remaining.<br />

Battery Life (%) Gives you an estimate of the amount of power remaining in<br />

the NiCad battery pack. This estimate is accurate to ± 10%. For example, if the<br />

battery life is at 20%, the battery pack is getting low and you need to replace it<br />

soon. The accuracy of the estimate depends upon variables such as the<br />

temperature, use, and age of the battery pack. When the AC Line Status is<br />

ONLINE, the Battery Life (%) is always 100%, even if the battery pack is not<br />

fully charged.<br />

You may find that POWER.EXE performs differently for each battery pack. For<br />

example, you may find that one battery pack uses power at a faster rate and<br />

reaches 20% battery life sooner than a new battery pack. For a detailed<br />

description of POWER.EXE, see Appendix D, “Software Utility Reference.”<br />

Note: You can also use the IRL FP command to determine the power remaining in the<br />

reader’s NiCad battery pack. For help, see the IRL Programming Reference Manual.<br />

Charging the Battery Pack<br />

You can recharge the NiCad battery pack using any of these <strong>JANUS</strong> <strong>2020</strong><br />

accessories:<br />

• Communications dock<br />

• Battery charger<br />

• Optical link adapter connected to a power supply<br />

You do not need to discharge the battery pack every time before recharging the<br />

battery pack. Only discharge the battery pack if you notice problems with the<br />

battery pack’s ability to hold a charge. The communications dock and battery<br />

charger use a charging method that maximizes battery life and prevents the<br />

loss of battery capacity due to the memory effect associated with NiCad<br />

batteries. For help about charging battery packs, see the accessory quick<br />

reference guides.<br />

Note: Battery packs charged in a room temperature of 68°F (20°C) have a higher<br />

charge capacity and more charging cycles than battery packs charged at a higher<br />

temperature.

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