Credit: OnePlus/WeiboTL;DROnePlus has revealed the OnePlus 15’s battery capacity, and it’ll offer a 7,300mAh battery.That means the phone’s battery is over 1,000mAh bigger than the OnePlus 13’s battery.The upcoming flagship will also offer 120W wired and 50W wireless charging.OnePlus will officially launch the OnePlus 15 in China next week, and the company has already revealed display specs and a few colors. Now, OnePlus has revealed the phone’s battery and charging specs.OnePlus confirmed on Weibo that the OnePlus 15 will have a 7,300mAh battery. That’s a significant upgrade over the OnePlus 13’s 6,000mAh battery, and a gigantic upgrade over phones like the Galaxy S25 Ultra (5,000mAh).