The battery or the charger may be defective. Because it is so new I would advise you to either return it to the place of purchase or contact the manufacturer. If a defect surfaces within the first 30 days the manufacturer may require you to contact the seller first for any issues.
Btw, I’m available to help over the phone in case u need at
https://www.6ya.com/expert/dave_fb2c45146b845cea
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