Dell Latitude D820 Battery Replacement

Dell Latitude D820 Laptop Battery Using Guidance

Make sure your laptop is at shut down state, remove the laptop battery needed to replace, at the same time, according to the location of laptop battery and interface, properly installed on the battery and turn off the security lock in order to ensure good contact between the Dell battery and Dell laptop. Open the laptop power switch, if the power indicator light on, indicates that the battery has good contact with the laptop, otherwise, you need to re-operate the first step.

Click the "Power" option will bring up the "Power Properties" dialog box, in the pop-up dialog box, the "power scheme" set to "always open", and "When the computer" behind the
"Using the Battery" all options select "Never";

Still in the dialog box, select "alert", cancel all sets in the "low-battery alarm" and "a serious shortage of the battery alarm".

Let the battery fully discharge at laptop adapter unplug state --- that is to continue using until the laptop can not work so far.
Then reconnect the power adapter to recharge the battery to the display power consumption of 100%.
Special Note: When your Dell Latitude D820 Battery pack has been calibrated and achieves the best state, set your computer's power options settings back to default values, to ensure that the computer can send you the right warning signals.

• Generally speaking, for security reasons, the new Latitude D820 Battery battery is usually not full of electricity, please be fully charged before use.
• The battery should be fully charge and discharge, try to avoid use when the battery is not fully charged or charge before not fully discharge, so as not to affect Dell Latitude D820 Battery life.
• When use, charge and discharge, please note that the positive and negative polarity of the battery and charger, do not reverse.
• Please use good quality laptop ac adapter.
• Strictly prohibited remove the battery from the Dell Latitude D820 laptop when laptop in the boot status.
• Please use the battery in the normal indoor environment, do not use laptop in high temperature (more than 45 degrees Celsius), or moist environments, because this is very dangerous to both the battery and the computer. Please keep good heat dissipation when using the laptop battery.
• When install the battery, please do not frequent, repeated connect and disconnect adapter, this would affect Dell Latitude D820 Battery life.
• Do not mix transformers or power adapter, each operating voltage or the charge voltage of electronic products may be different, the wrong usage may damage the battery, may be serious damage to the machine.
• Battery working hours varied by the use of different equipment and functions, whether to play the CD or VCD, as well as chemical properties of the battery and other factors.
• Optimize the laptop functional management can extend the Dell Latitude D820 Battery life, specifically can be found in the equipments using instructions.
• When you don't use the battery for a the long time, please semi-electric (charge to 50%) and store in dry, cool environment, avoid metals placed together in order to avoid danger, and to prevent taking by children. Recommend to use the included in anti-static belt and velvet bag.
• To the battery stored for more than 1 month, if you do not use, you need to do a complete discharge and charge under the control of protection circuit, and re-charged to 50% capacity to store, to ensure the Dell Latitude D820 Battery life and activity, and maintained to repeat the same operation every 2 months.
• Please secure proper handle with the waste battery, it is recommended to hand to the specialized agencies or put into the battery recycling bins, do not put into fire or water, do not arbitrarily discard used battery.