Finish the following sentence with the best choice: How do I give power to my LED bracelet ?

Choices:
- Connect your bracelet to a 12 V / 7 Ah Lead Acid car Battery.
- Connect your bracelet to a 3.7 V / 100 mA Lithium Ion Polymer Battery.

Answer:
Connect your bracelet to a 3.7 V / 100 mA Lithium Ion Polymer Battery.