Worry your backup battery out of juice during a trip? Of course, you can prepare a backup battery with large capacity, or use nPower PEG personal energy generator.
nPower PEG is world’s first personal energy generator produced by Tremont Electric. It can convert the kinetic energy you generate when walking, running or biking into electric energy, and store it in the built-in backup battery. When you need it, the portable backup battery charger can feed your mobile devices out of juice. The portable charger supports over 3,000 hand-held electronic devices, and the portable tube design lets you take it to anywhere. Moreover, the accompanying USB cable also allows you to charge the backup battery via USB port in a short time.
nPower PEG personal energy generator with backup battery is priced at 159.99 USD. If you’re interested, jump to nPower PEG official site for more details.