“Why is there no considerable technical development in laptop and phone chargers over the years?”

(Answer requested by Prapat Saxena)

I disagree with the premise of your question.

Most charging is by USB these days. When USB 1 came out in 1996, it supported 5 volt/0.5amp charging; 2.5 watts.

Today’s newest USB charging supports up to 20 volts/5 amps; 100 watts.

And there are now wireless charging options, too.

I’d consider a 40-fold increase in power, and the elimination of some wires, “considerable” developments, wouldn’t you?

More info:

• Wikipedia: USB
• Fast charging standards: How many are there? How are they different?

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