Fujitsu 990TX2 manual Low Battery State, C A U T I O N

S e c t i o n T w o

they were installed and/or the AC or auto/ airline adapter was connected.

There is no memory effect on the Lithium ion batteries, which means that you do not need to discharge them completely before recharging. A single fully discharged Lithium ion battery will charge in approximately three (3) hours when your notebook is Off or in Suspend mode. The charging time from fully discharged for two Lithium ion batteries together, is approximately 5 hours when your notebook is Off or in Suspend mode.Of course partially charged bat- teries will not take as long to charge. The charge times will be significantly longer if your note- book is in use while the batteries are charging (from approximately nine (9) hours for one battery to approximately 15 hours for two batteries with normal operating levels).

C A U T I O N

Using heavy current devices such as LAN cards or frequent CD-ROM accesses may prevent charging completely.

Low Battery State

When the battery is running low, your note- book beeps about every 15 seconds and the Battery Level indicator(s) flash. If you do not respond to the low battery alarm,the batteries will continue to discharge until they are too low to operate. When this happens there will be a multiple beep alarm,the Battery Level indicator will show dead battery, and your notebook will go into Suspend mode to try and protect your data as long as possible. Your power manage- ment settings do not affect whether the dead battery alarm level will send your notebook into Suspend mode, it will not go to Save-to-Disk mode. (Figure 2-3 on page 19.)

C A U T I O N

You may not be able to hear the audio alarms if the volume control is set too low or is turned off by either hardware or software but you will still be able to see the Battery Level indicator(s) flash.

When the low battery alarm occurs you need to save all your active data and put your notebook into Suspend mode until you can provide a new power source. You should provide this power as soon as possible. The new power source can be a charged battery or a power adapter, either AC or auto/airline.

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