The most important for laptop battery is safty

The following instructions should be followed strictly. Disregard could cause serious damage to Dell Latitude D505 battery and notebook. In addition, you can put your health at risk.

Safety and handling of the battery

Close the battery never short. Short circuits cause serious damage to your battery. In the worst case of this is useless. You should let the battery not covered, or otherwise cause damage. We would also like to point out that the Dell Latitude E6400 battery also should not use abusive in other ways to prevent the leakage of corrosive substances from the inner electrical core.
Try not to disassemble, modify or repair. These processes can lead to overheating and fire of the Dell Inspiron 6400 battery. Drill the battery in! Escaping electrolytes (eg, tantalum, cobalt) can mean danger for them and their environment.

Safety and Storage Battery
Avoid storing the Dell Studio 1737 battery near sources of heat or humidity. Keep the battery further away from extreme fire and other heat sources. The storage in the vicinity of a strong heat source can cause an explosion of the DELL XPS M1530 battery. We would also like to point out in this context that you are not allowed to burn batteries.