To better use your dell inspiron 500m series battery, please take care of the precautions listed below :
1. Do not modify or disassemble dell inspiron 500m series battery, as the materials inside may be toxic and may damage skin and clothes.

2. Do not attempt to short circuit the terminals or store your battery pack with metal objects such as aglet. Doing so can damage the product and generate heat that can cause burnout.

3. Never solder anything directly to dell inspiron 500m series battery.

4. Never insert dell inspiron 500m series battery with the positive and negative poles reversed as this can cause permanent damage to the battery which may swell or rupture.

5. Never charge with an unspecified charger or specified charger that has been modified. This can cause breakdown of the battery or swelling and rupturing.

6. Do not place dell battery in device for a long period of time if device is not being used.

7. Do not pierce, hit, step on, crush or abuse dell inspiron 500m series battery.

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