Leaked information from multiple sources indicates that the upcoming iPhone 17 Pro Max will feature a battery capacity of approximately 5,000mAh, marking the largest battery ever included in an iPhone. This represents an increase of about 315mAh compared to the current iPhone 16 Pro Max, which has a 4,676mAh battery. The larger battery aligns with reports suggesting the iPhone 17 Pro Max will be thicker than its predecessor. While the increase in battery capacity is notable, some sources caution that it may not necessarily translate into longer battery life. The rumored battery upgrade aims to address longstanding user concerns about battery performance in Apple's flagship devices.