Well, the correct way to decide is to create a testable hypothesis that differs in outcomes between taking care of aging batteries and planned obsolescence, and

Well, the correct way to decide is to create a testable hypothesis that differs in outcomes between taking care of aging batteries and planned obsolescence, and then test it. Hypothesis: If they wanted to take care of batteries/battery life, the phone/tablet would resume running at full clock speed when plugged in and charging. Test outcome: This is not the case. Verdict: Hmmmm...