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Why does my android tablet shutdown stating battery at 0% when it has been on charge and should be at 100%?

Hi, Most probably the battery has failed and needs to be replaced. Even rechargeable batteries have a lifespan. here’s the Ifixit RCA RCT6203W46 Battery Replacement guide that will help. Replacement batteries are available online. Just search for RCA RCT6203W46 Battery to find suppliers that suit you best.