To better use your dell latitude d600 series battery, please take care of the precautions listed below :
1. There are however some further actions which can be taken to increase dell latitude d600 series battery life.

2. Do not modify or disassemble dell latitude d600 series battery, as the materials inside may be toxic and may damage skin and clothes.

3. Caution must be given to prevent accidental short-circuiting of the battery.

4. Do not incinerate or expose battery to excessive heat, which may cause the battery to rupture.

5. Never solder anything directly to dell latitude d600 series battery. This can destroy the safety features of the battery by damaging the safety vent inside the cap.

6. Never insert dell latitude d600 series battery with the positive and negative poles reversed as this can cause permanent damage to the battery which may swell or rupture.

7. Don't leave dell latitude d600 series battery in the charger once it is fully charged.

8. Also,do not place battery in device for a long period of time if device is not being used.

9. Store the laptop batteries in a cool place and when in use don't allow them to remain in environments which may be subject to overheating.