Yes .... as iPhone owners can be one of the relatively weak battery undoing. With moderate use with someone, I-Net and call more than 30 hours are with me normally never be possible without charge! Cable rumschleppen is not really my thing, a laptop I've also not available everywhere, so how am I supposed to survive now times more than 30 hours without charge possibility ...? The DLM52526 auxiliary battery is there now a tremendous help I'm geworden.Sobald road and the green bar has become red again, I just clamp on my extra battery and charge my iPhone mobile just back on. After loading I let the auxiliary battery then mostly in the car and invite them on my USB port in the car again while my iPhone is still loaded.
My very sincere judgment: This unit is a must for people who travel a lot and possibly a lot of calls, surfing, emailing, etc.! For me, this device facilitates much (eg short trips) and makes the weakest point of the iPhone bearable!
