If you're a mobile gamer, you know the bliss of playing anywhere you want to go -- and the anxious downside of draining your phone's battery as you do. That's why the OnePlus 15 's massive 7,300-mAh battery makes this a promising handset for the discerning gamer on the go. Presumably, you'll be able to play for longer without draining your phone down to low capacity.

The reality is a little more complicated, partially because the OnePlus 15's advantages can be diminished if graphics and the frame rate are cranked up to the max. It's a good problem to have, as the phone's premium specs give it a higher ceiling for performance. However, gamers who aren't careful can drain their batteries nearly as quickly as other top-tier phones .

Still, if you don't want a gaming-specific pho

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