Apple may be encountering supply issues with the battery for the new iPhone, according to recent reports. The new iPhone is expected to launch this fall with a larger display, metal rear panel, and several internal upgrades, including 4G LTE connectivity.

Now it looks like there may be problems with the device’s battery. Topeka Capital Markets analyst Brian White recently discovered an article in the Chinese news media. According to AppleInsider, he summarized the contents of the story in a note to investors. According to the report, only about 30% of the batteries that are rolling off of assembly lines are meeting Apple’s standards for the new iPhone’s battery. The manufacturer is reportedly working to get the issue sorted out quickly enough to keep iPhone’s production schedule on track.

Speaking of production schedules, White also says that he expects the iPhone to launch in September. Most rumors have put the release in October, a full year after the launch of the iPhone 4S. On the other hand, White has a pretty good track record, so he may be right about a September launch after all. He emphasized that he didn’t expect the battery issue to impact the iPhone’s launch schedule.