Yes, the OnePlus 9 can play games at the same time while charging fast. The OnePlus 9 uses efficient fast Charge technology, supporting Warp Charge 65T fast charge, which can charge the phone in a short time and keep the heat dissipation low. This means you can play games while your phone is charging without having to worry about overheating.
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The OnePlus 9 also uses an advanced heat dissipation design, which can effectively reduce the heat generated by the phone by optimizing the heat dissipation system and using efficient heat dissipation materials. This allows the temperature of the phone to be kept within an acceptable range when playing on a fast charge, without affecting the gaming experience or causing damage to the phone.
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However, playing a game with a high load for a long time may cause the phone to heat up, it is recommended to maintain a well-ventilated environment during the game and avoid placing the phone in an enclosed space or on a soft pad to help dissipate heat. Also, if you find that your phone is overheating or your battery is dropping fast, pause the game and let the phone cool down or stop the fast charge to protect your phone's performance and battery life.
This is a safety hazard advice do not plug in the video game phone
You can play, but the experience may not be so good, because it will be hot.
9 Mobile phones can play games when they are fast charged, but it is not recommended to play this way, because it will cause a great burden on the battery and reduce the life of the battery