Question laptop stop charging when using an intensive app(like ue4) or playing a game

Aug 12, 2018
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Hello everyone,
i have a Lenovo thinkpad t560, my original charger was damaged, so i bought a new one, it work perfectly, but when i open an intensive app like unreal engine 4 or a game, the laptop being charging/stop charging, when i quit the app the problem stop. Thanks for your future answers.