Evening 01-What If Battery Life Was a Countdown?

Hello,

I am starting a new series today, I am going to solve 10 problems in 10 evenings. Last month I asked people what annoyed them about any digital devices and services. I picked my favourite and this month I am purposing an for my Top 10 in 10 evenings.

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Evening 01-The Problem...Battery Life Indicator
"It annoys me when my phone battery says 1% then lasts 3hours. Then another time it said 1% and died 5min later when I actually needed it!"

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What if...
the battery % was changed into a countdown? When loads of apps are running it shows the battery life running out quicker. When the phone is placed in “Low Power Mode” or less apps are running the battery life runs down slower.