How to make a powerbank or an emergency power supply using old car battery.

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So uhmm, I’m here in our office talking to my wife and daughter via video call and I just mentioned here that I kept the old car battery from our 2017 Toyota Innova, and she told me to make an experiment using the power inverter and car battery. So I did, here’s how I make anpower babk and an emergency power supply uaing an inverter and a car battery.
I hope you all lesrn from this video. enjoy watching!
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