With the release drawing close, rumours about the iPhone 6 are on its peak these day. Recently, a report revealed iPhone 6 battery details, suggesting that Apple’s 2014 models may offer better battery performance than the last iPhone.

The 4.7-inch iPhone 6 was expected to have a battery capacity of 1,800 mAh to 1,900 mAh, while the so-called 5.5-inch ‘iPhone Air’ was said to have a 2,500 mAh battery. Now, French publication Nowhereelse has disclosed an image of the purported 4.7-inch iPhone 6’s battery, which may confirm that the battery has a capacity in line with previous reports.

The image revealed by the publication shows a battery assembled in China by Huizhou Desay Battery, which has 1,810 mAh capacity. What’s interesting about the battery maker is that Desay was mentioned in a recent report as one of Apple’s iPhone 6 battery suppliers. The report mentioned the company that is able to meet the iPhone’s battery size requirements for this component.

The iPhone 6 which is said to be launched later this year is expected to be 7mm thin. It was also reported that Apple has placed orders to battery suppliers for 2mm-thick batteries, which are one-third thinner than the batteries found in the iPhone 5s and iPhone 5c. Another report illustrates that Apple suppliers encountered challenges mass-producing slimmed-down components for the iPhone 6, including batteries, which could affect their gross margins.

There were images which were previously leaked showing a batch of purported iPhone 6 batteries, although their capacities were not revealed in those leaks. This appears to be the first purported iPhone 6 battery picture that actually lists the capacity of the battery, an important hardware detail, especially considering this year’s models will have significantly bigger displays.

According to Taiwan’s Economic Daily News, the 4.7-inch iPhone 6 will enter mass production starting next week, while the 5.5-inch model will go into mass production almost a month later, during the second week of August. Which means the rumored September release of the device may come true. The publication has also reported that Foxconn will hire 100,000 workers to meet Apple’s iPhone demands this year, which is in line with the unconfirmed reports which said that Apple placed a heavy order. Pegatron, the other iPhone 6 maker, has also hired more than 10,000 additional workers to manufacture the new iPhone, as Apple is rumored to sell up to 70 million iPhone 6 units this year.