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jpro

macrumors newbie
Original poster
Aug 6, 2010
6
0
Wirelessly posted (Mozilla/5.0 (iPhone; U; CPU iPhone OS 4_1 like Mac OS X; en-us) AppleWebKit/532.9 (KHTML, like Gecko) Version/4.0.5 Mobile/8B117 Safari/6531.22.7)

My brother just got an iPhone 4 and bought a generic USB car charger for $10 on amazon. I have heard that these low cost chargers don't regulate the electricity correctly to certain devices (ie: iPhone4) and can lead to a premature breakdown of the battery. The back of the charger is stamped with input: 12v, output: 5v. Is this ok to use with his new iPhone?
 
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