Q. How do I charge my laptop battery?
A. The battery charges in the laptop when the laptop is connected to an AC power source via the AC adapter.

Q. How long does it take for a laptop battery to fully recharge?
A. The charge time varies depending on the system. If the system supports Express Charge , the battery typically will have greater than 80% charge after about an hour of charging, and fully charge in about 2 hours with the system off.

Q. Should I totally discharge, then recharge my laptop battery occasionally to make it last longer?
A. No, discharging and charging does not increase the life of a Lithium Ion technology battery.

Q. Can a laptop battery be “overcharged”?
A. No, the battery is designed to stop using the charger when it reaches full charge.

Q. What can I do to make my battery last longer?
A. There are several things you can do to make your battery last longer:

  • Choose the right battery. Under the same use conditions, a lower capacity battery will wear out faster than a higher capacity battery because it has to be charged more often.
  • Use the notebook’s power saving controls to reduce battery use in your normal day. For example, turn the Bluetooth off if it is not needed; reduce the screen brightness when conditions permit.
  • Avoid exposure to extreme temperatures. If the system is exposed to extreme cold or hot temperatures, allow it to warm up/cool down before use and before charging.
  • Contrary to last decades’ batteries, modern lithium ion batteries do not need to be fully discharged to maintain health.
  • All batteries wear with use and time. When you find the runtime is no longer satisfactory, it may be time to purchase a new Dell battery.

Q. How do I get the most runtime for a charge?
A. It is important to choose settings which allow you to obtain the most runtime from your notebook. Examples to consider: timeout settings for the hard drive, Bluetooth, wireless, LCD brightness, etc.

Q. What is the “Memory Effect” in laptop battery?
A. The “memory effect” can be seen in Ni-Cad and NiMH batteries. It is caused by the user continually re-charging the battery before being it has fully discharged. The battery will eventually ‘forget’ the unused capacity. The way to avoid the “memory effect” is to fully charge and discharge the battery at least once every month. This will ensure the battery remains healthy. Li-Ion batteries do not suffer the memory effect.

Q. When not using my notebook for long periods of time, should I leave the battery in the laptop?
A. It is not advisable to leave the battery in the laptop for extended periods of inactivity. Whilst in the laptop the battery will slowly discharge. If the battery is allowed to completely discharge the laptop may not recognise it when it is next booted up. DO NOT fully charge your battery prior storage. It should be charged to between 40 -50% of it’s capacity. During storage check the battery every 3-4 weeks to prevent total self discharge. If the battery is allowed to totally self-discharge the notebook may not recognize the battery when the laptop next is booted up.

Q. What should I do if the battery gets hot in my notebook?
A. It is normal for the battery to become very warm to the touch during use. If it becomes too hot, take the battery out and let it cool down.

Q. Can I store batteries in the refrigerator?
A. Yes, but the battery must be protected from moisture which will cause internal corrosion. It must be kept in an airtight container.