Mobile, app battery limit charger

Avg Bid (USD)
Project Budget (USD)
$30 - $250

Project Description:
I was thinking to have an android and/or app that stops the charging to a certain percentage let's say. If my battery is now at 20% i am going to activate the app and the set it to charge only to 75% then stop charging. Even if its connected to a plug or through a cable connected to a pc or laptop.
I don't expect to pay more then 150 dollars on android or iphone app together and should be ready in max. 3 days. Bonus for efficient and clear thinking with no bullshit.
Send me pm and when ill choose someone i will send the full project details even with some design ideas.

Thank you

Skills required:
Android, iPhone, Java
About the employer:
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