My iPhone is almost three years old. It charges to one hundred percent but its battery capacity is 88 percent of what it was new. It is an iPhone 12 and I was able to update it to the latest operating system.
At what battery capacity should I get a new iPhone?
The one I bought is about twice as big as a cell phone, but should be able to charge a phone or tablet 7 or 8 times. We use it for power outages and long trips, 10,000 mAh hours would be plenty for daily use, pretty small and under $15. The one I have has 30w USB-c fast charging which is nice.
In case you don’t believe in planned obsolescence, the soldered in battery is more evidence. Early on most cell phones had a replaceable battery. You’d buy a few extra and you never had to worry about your phone dying. And then, in 2007, Apple introduced the iPhone with the soldered in battery. Most Androids had replaceable batteries but now the copy-cat companies follow what Apple does. If you look hard you can still find phones with swap out batteries. I’m using a Motorola Moto E6. It’s a low end Android but it does have a removable battery. I’ve got extra batteries in my car, Harley, boat, house.