You could use a high performance li-ion battery, but that would be very expensive. Li-po is better for this particular application.
@online07 perhaps if you could be more specific about your exact problem? To begin with, try the setup instructions mentioned above in the instructable. If you're running into any specific issues, I'll be most happy to help. All the best with your project.
Wonderful idea Kabir.We're all eagerly waiting for the rest of the steps.
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