Hi Lakshima. I'm Greg, an installation specialist and 10 year Windows MVP here to help you.
For battery icon not showing percentage in WIndows 10, access Device Manager reached by right clicking the Start button, choose Battery device, on Driver tab choose Uninstall, restart PC to reinstall.
I hope this helps. Feel free to ask back any questions and keep me posted. I will keep working with you until it's resolved.
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