flipCHARGE burst gives you instant power for your iPod or iPhone. This backup battery is capable of recharging the battery life of your iPod up to 70% or iPhone up to 30%. A flush folding USB cable and dock connector has been integrated to allow you to sync your device while charging. This cable is also used to recharge the flipCHARGE burstConvenient DesignWhile measuring in at less then half the size of an iPhone, this backup battery and charger is the perfect solution for portable power. A convenient carabiner clip has also been included which allows you to attach the flipCHARGE burst to your backpack, golf bag, luggage or nearly anything else.Simply Plug and ChargeFour LED lights indicate how much battery power is left. When you notice that your flipCHARGE burst is low on power, recharge it using the flush folding cable to plug it in to any computer, wall charger or car charger.Compact PowerThe flipCHARGE burst has a powerful 720mAh lithium-polymer rechargeable battery. When completely drained, the battery pack can be plugged in for approximately 2.5 hours to get fully recharged.