Why Is My iPhone Battery Draining So Fast?

If your iPhone battery is draining faster than it used to, you're not alone. Battery performance naturally declines over time — but in some cases, fast battery drain can point to a deeper issue. Here's how to spot the cause and what you can do to fix it.

How Long Should an iPhone Battery Last?

Most iPhones are designed to retain up to 80% of their original battery capacity after 500 full charge cycles. If your device is older than two years and you're charging it multiple times a day, the battery may be nearing the end of its life.

Common Reasons for Battery Drain

Several factors can cause your iPhone battery to drain quickly:

• Background app activity

• Software glitches or iOS updates

• Location services and push notifications

• A failing battery

• Extreme temperatures (especially cold)

• Faulty charging behaviour or settings

You can check battery usage in Settings > Battery to see which apps are draining power.

How to Reduce iPhone Battery Drain

Before replacing the battery, try these tips:

• Turn on Low Power Mode

• Reduce screen brightness

• Disable Background App Refresh

• Update to the latest version of iOS

• Turn off location services for unused apps

If none of these help, it might be time for a new battery.

When to Replace Your iPhone Battery

A clear sign you need a battery replacement is when your phone shuts down unexpectedly or won't hold a charge for long. You might also see a message saying “Battery health degraded” in your settings.

At Kent iPhone Repair, we offer fast, affordable battery replacement for all iPhone models. We only use high-quality parts and can often complete your repair the same day.

Get Expert iPhone Battery Repairs

If you’re near Sittingbourne and your iPhone battery is draining too fast, we can help. Whether it’s a swollen battery, degraded cell, or simply time for a refresh, our technicians are here to fix it.

We also cover nearby areas including Sittingbourne, Faversham, and Maidstone.

Book your battery repair today via our battery replacement page, or get in touch through our contact page.