Stretch Your Dollar: Boost your smartphone's power

HOUSTON (KTRK) -- If you are looking for a back-up power supply for your mobile devices, here are some options that received good reviews from technology experts:

1. The Nomad Key: http://www.hellonomad.com

2. The Anker PowerCore: http://www.amazon.com

3. Luce Wallet: http://www.ahalife.com

4. Power It Up: http://www.impecca.com

5. RAVPower FileHub Plus: http://www.ravpower.com

Patricia Lopez has tips to boost your smartphone's power with these devices.