First, activate the asus a42-g74 laptop battery (first time after purchase batteries or do not use batteries) Random with laptop battery is a high-energy lithium-ion battery, operating activate the battery before first use as follows: initial use of lithium-ion battery, the battery may be only a few remaining power, you need to give the asus g74 battery discharge and then charging. Charge in the off state. After the battery is fully charged, you can use. To battery power when the use of the first three all finished using the re-charging. Moreover, the charging time can not be less than the first charging time. To ensure maximum battery is activated to ensure the effective usage time of the battery. This process, known to activate the asus g74jh battery. After three complete charge and discharge, the battery can be normal use. Second, the battery initialization  Laptop battery after prolonged use, gradually found using the battery discharge time is much less than in its original discharge time, which is caused by the lithium-ion battery memory effect. The battery can be initialized to remove the memory effect. Initialization process means the Asus K72 is fully charged, the exhausted and full again. Follow these steps to complete an initialization: Make sure your computer is turned off, and then connect the external power supply charge. After a full charge, and then boot. “Press <F2> to enter System Configuration Utility” screen appears, press [F2] to open the BIOS and let the computer stops there. Unplug the power adapter and leave the computer on, and turns off until the battery is dead. Connect the power adapter and the dell vostro 3400 battery is full.  Three using the battery Note:  Do not short-circuit the battery  Do not expose the battery to the environment above 60 ° C  Do not expose the battery to fire  Do not drop the battery or vibration  Do not use a damp cloth to wipe the metal part of the dell inspiron 1470 laptop battery  Do not use wet hands touch the battery or immersed in water or other liquids  Do not disassemble the battery  Do not, under the sun, temperature extremes or near the fire place to place, use the battery to charge Using the battery, try to power run out before charging, and the time it will be a full battery, not halfway through the charging or discharging. This will keep your battery in the best condition.
Do not charging to store the battery for more than six months.

Note:

1 during charging, do not unplug the external power supply.

Please do not use the dell xps 15 battery of the machine-specific.

If this is the first time using a laptop, or you did not use it for a long time (three weeks or longer), be sure to battery completely discharged and then fully charged, in order to restore full battery.
4 regardless of whether the dell xps 15 (l501x) laptop battery is installed in the computer, there will be the phenomenon of self-discharge (day about 1% differ slightly depending on the model).
(5) If the computer does not use for a long time (over three weeks), it is recommended that you unplug the battery, the battery be stored separately (storage environment described above).
Due to the damage of the lithium-ion battery will pollute the environment, but also a certain degree of risk. Do not be thrown away. When you are ready to dispose of used batteries, please contact your local authorities to learn Disposal instructions
(7) If the battery is not a long time can be removed, but the battery must have power (to prevent excessive battery discharge causing damage), how much battery power as the battery storage duration, for example, stored in a long time, we must charge the battery power more, in short, the dell latitude e6320 laptop battery inside the power to prevent prolonged storage resulting in excess discharge. Charged from a laptop battery factory is also out this regard. Do not charging to store the dell latitude e6430 battery for more than six months.