If your iPhone is otherwise fine, a new battery is often the cheapest way to make it feel new again. Here is how to tell whether yours needs one.
Check battery health
Open Settings → Battery → Battery Health (on some versions, Battery Health & Charging). Maximum Capacity shows how much charge the battery holds compared with when it was new.
Apple designs iPhone batteries to keep about 80% of their capacity after a set number of full charge cycles: around 500 cycles for iPhone 14 and earlier, and around 1000 cycles for iPhone 15 and later. Below 80%, most people notice the phone running out much sooner.
Signs it's time
- You charge more than once a day with normal use.
- The phone shuts down suddenly at 10–30%, especially in the cold.
- It feels slow, and Battery Health mentions performance management.
- The screen is lifting or the back is bulging. Stop using it and get it looked at, as a swollen battery shouldn't be left in the phone.
What it costs
Battery replacements at Phone Time currently range from $69 to $169 depending on the model, done at your home or work.
| Model | Battery replacement |
|---|---|
| iPhone 11 | $99 |
| iPhone 12 | $109 |
| iPhone 13 | $119 |
| iPhone 14 | $129 |
| iPhone 15 | $139 |
| iPhone 15 Pro | $149 |
| iPhone 16 | $149 |
| iPhone 16 Pro | $159 |
Battery or new phone?
A new battery makes sense when the phone still gets updates, the screen and camera are fine, and you're happy with it apart from battery life. If the phone has several problems at once, compare the total repair cost with an upgrade. I'll give you an honest opinion either way.
Good to know
On newer iPhones, Settings may show an “unknown part” notice after a battery replacement. This is normal for replacement parts and does not affect function or how your phone works.