Just insert your spare standard or extended battery into the charger and plug it into your AC adapter, USB Charging cable, or Vehicle Power Charger.  You can therefore charge up at the office, your hotel room, or car so you'll always have the power you need while on the go.

This unit also conveniently offers both a standard Palm + micro USB charging connectors and you can choose either to power your battery.

• Charges your smartphone battery, usually within 2-4 hours
• Doubles as a durable carrying case for your spare battery
• Convenient, small and lightweight traveling solution
• Free standard Palm 1150mAh battery included