Microsoft W840DI manual Questions and Answers, Battery, Users Guide, Page

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2.3Questions and Answers:
I did not use my spare battery for months. I have problem in recharging it.
My battery operation time is not as long as it should be. Why?
I can feel a mild heat next to the battery pack. Is it normal?

Battery

User's Guide

 

 

2.3Questions and Answers:

Q:

A: The battery will generate heat during recharging and discharging. There is a protection circuit inside the notebook to prevent overheating. User needs not to worry.

Q:

A: The battery is heat sensitive and can only be charged to its maximum if the battery and its environmental temperature remain within 15-25°C (59-77°F). The more the temperature deviates from this range during recharging, the less chance there is for the battery to be fully charged. In order to recharge the pack to its full capacity, users are requested to cool down the unit by unplugging the AC Adapter. Wait until it is cooled down. Then plug in the AC Adapter to start recharging again.

Q: I did not use my spare battery for a few days. Even though it was fully recharged, there wasn't as much power left as a newly charged one. Why?

A: The batteries will self-discharge (1% per day for Li-Ion) when they are not being recharged. To make sure a battery pack is fully charged, recharge before use. Always keep the battery inside the notebook and have the AC adapter connected whenever possible.

Q:

A: If you happen to leave your battery pack to go through an extended period of self- discharge, say more than three months, the battery voltage level will become too low and needs to be Pre-Charged(to bring the battery voltage level high enough) before it automatically (for Li-Ion only) resumes its normal Fast Charge. Pre- Charge may take 30 minutes. Fast Charge usually takes 2~3 hours.

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Contents Notebook PC Users Guide Model W840DI First Edition SeptemberWindows is the trademark of Microsoft Corporation TRADEMARKSUsers Guide PageStandards This page is left blank intentionally CHAPTER 2 BATTERY CONTENTSContents User’s GuideAPPENDIX A - AGENCY REGULATORY NOTICES 1.1 Checking What You Received Chapter 1 Before You BeginBefore You Begin 1.2 Examining Your Computer Panoramic ViewTop View Front View Rear ViewPCI Express Card Slot Left ViewCMOS Reset Switch Media Card Slot for SD/ MMC/ MS CardsRight View Bottom View Stereo Jack Two Types of Audio JackMono Jack The system is not connected to AC power and the battery 1.3 The Power LEDThe system is running on AC power and the battery level is below 5%, representing insufficient power to turnThe system is off or in hibernation mode 1.4 The Two System LEDsThe battery is fully charged is not inserted, orThe Media Finger-Touch Button LED The Wireless LAN LED1.5 The Seven Status LEDs The AC Adapter LEDThe Num Lock LED 1.6 The Power Button Power ButtonInternet Button 1.7 The Two System Finger-Touch ButtonsEmail Button Stop Button 1.8 The Seven Media Finger-Touch ButtonsPlay/Pause Button Previous Track ButtonUsers Guide 1.9 Attention On PCI Express And Media Card Slots When no card SD/ MMC/ MS Cards is inserted into the media slot, make sure this slot is covered by the “media slot door” as supplied together with this notebook. The purpose of this “media slot door” is to prevent foreign matters from entering into the system unit through this slot, when no card is inserted. When inserting this “media slot door”, please make sure the arrow is on the topside as shown above. Inserting this door upside down may cause damage to your notebook Operating Temperature 1.10 Operating Temperature10 ºC to 35 ºC 1.11 Resetting Your System 3 Go into Exit Setup to Exit Saving Changes 1.12 The Fingerprint Reader Finger Print ReaderLCD/CRT/TV Switch Sleep SwitchWireless LAN Switch Web Cam SwitchKeyboard Backlight Switch Mute/ Un-mute SwitchBluetooth Switch Media Function Switch1 Press this combination Fn+F2 to power on Wireless LAN 1.15 Power Conservation For Dual VGA Configuration 1.14 The AC Adapter2.2 Recharging The Battery Pack Chapter 2 Battery2.1 Battery Pack Battery2.3 Questions and Answers 2.4 Battery Maintenance 2.5 Power Consumption2.6 Reducing Power Consumption 2.7 Removing The Battery PackDDR3 S.O. DIMM Memory Module Chapter 3 MemoryMemory 3.1 Limitation Of 32-bit Windows OS 3.2 Removing Memory Modules Below is the procedure on how to remove the memory modulesTo insert the memory modules, reverse the steps above 4.1 The Two HDD Sockets Chapter 4 The HDD DrivesThe HDD Drives 4.2 For RAID Users 4.3 For Non-RAID Users Below is the procedure on how to remove the hard disk drives 4.4 Removing The Hard Disk DrivesTo insert the HDD drive, reverse the steps above Appendix A A.1 Safety InstructionsAppendix A - Agency Regulatory Notices Page A-1Page A-2 WARNING DO NOT step on or place anything over the power cordPage A-3 WARNING THE CD-ROM/DVD-ROM IN THIS NOTEBOOK EMPLOYS A LASER SYSTEMCLASS 1 LASER PRODUCT KLASSE 1 LASER PRODUKT Page A-4 Page A-5 Modifications A.2 Agency NoticeFederal Communications Commission Notice CablesFCC RF Radiation Exposure Statement USA and Canada Safety Requirements And NoticesPage A-7 Use On Aircraft Caution Canadian NoticeExplosive Device Proximity Warning Avis CanadienEuropean Union Notice Page A-9Japanese Notice Page A-10DGT Statement U.S. Regulations Governing the Use of Modems Page A-11Japanese Modem Notice U.K. Modem Compliance InformationPage A-12 Page A-13 This modem is only approved for use of the following facilitiesPage A-14