battery for touch Z400 problem

Hello! I have a z400 ideapad touch and I have a problem with the battery. It says plugged in, in charge, but it does not load and 40% it is down to 35% already and I don't know what to do and I can't open it without the adapter attached to it. and I really need to fix it before July 15. Help, please...

Read this link especially the allocation of Mark_Lenovo.

Tags: Lenovo Notebooks

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