iPhone Battery Guide
Is Your iPhone Battery Below 80%?
It's Time to Replace It.
Learn how to check your battery health in 30 seconds — and why waiting too long can damage your iPhone. Same-day battery replacement in Sunrise, FL.
What's Your Battery Health?
Drag the slider to your iPhone's Maximum Capacity and see what it means.
Why 80% Is the Magic Number
Every iPhone battery wears down with use. Apple considers a battery degraded once its Maximum Capacity drops below 80% — at that point it can no longer deliver peak power, and iOS may slow down your phone to prevent unexpected shutdowns. If your battery reads 79% or lower, a replacement is the fix — not a new phone.
Check Your Battery Health in 30 Seconds
No apps, no tools — it's built right into your iPhone.
Open Settings
Tap the Settings app (gray gear icon) on your home screen.
Go to Battery
Scroll down and tap Battery, then Battery Health & Charging.
Read Maximum Capacity
Check the Maximum Capacity percentage. Below 80%? Time for a new battery.
What Happens If You Don't Replace It
Ignoring a worn battery doesn't just mean shorter battery life — it can damage the rest of your iPhone.
Unexpected Shutdowns
A degraded battery can't deliver enough power during demanding moments, so your iPhone shuts off without warning — even at 30% or 40% charge.
Performance Throttling
iOS automatically slows down your processor to protect a weak battery. Apps lag, the camera stutters, and everything feels old.
Battery Swelling
Old batteries can swell, pushing the screen out of its frame and damaging the display, back glass, or internal components — turning a small battery fix into a much bigger repair.
Overheating Risk
A failing battery works harder and runs hotter, stressing the logic board and, in extreme cases, becoming a safety hazard.
Don't Wait for a Swollen Battery
CarlosRepair replaces iPhone batteries the same day, with a 90-day warranty — and we come to you, anywhere in Broward County.