Batteries provide the juice for your project
Super Capacitor - 10F/2.5V is a powerful solution to charge up your system.
With the ProtoCentral Battery HAT, add some juice to your Raspberry Pi and make it truly wireless and independent.
Battery holder-18650 affordable, easy to use,light weight and holds a Lithium Ion Cell battery.
Sparkfun Babysitter is an all in one solution to keep you project powered up for an extensive period.
Battery Holder - 1x18650 (wire leads) is a single cell battery holder for your projects
Polymer Lithium Ion Battery - 1000mAh 7.4v is a rechargeable and a handy battery.
Li-Ion/Polymer Battery Charger/Balancer - 50W, 5A is ideal to rechanrge the Lithium Ion batteries.