Home › Guides › Fix Phone Battery Drain

Why Is My Phone Battery Draining So Fast? (And How to Fix It)

6 min read  ·  Works on iPhone and Android

A draining battery is usually caused by a few common things — and most of them are easy to fix. Here's how to find the culprit and get your battery lasting all day again.

Step 1 — Find What's Draining Your Battery

On iPhone:

1

Go to Settings → Battery

Scroll down to see Battery Usage by App. Look for any app using a high percentage — especially in the background.

On Android:

1

Go to Settings → Battery → Battery Usage

This shows which apps are consuming the most power. If one app is using far more than others, that's likely your culprit.

Step 2 — Fix the Most Common Causes

Screen Brightness (Biggest Drain):

1

Lower brightness or enable Auto-Brightness

iPhone: Settings → Accessibility → Display & Text Size → Auto-Brightness (turn on).
Android: Pull down the notification shade and drag the brightness slider lower.

Background App Refresh (iPhone Only):

1

Go to Settings → General → Background App Refresh

Turn it off completely, or turn it off for specific apps that don't need to update in the background.

Location Services:

1

Go to Settings → Privacy → Location Services

Set apps to While Using instead of Always. Turn off location entirely for apps that don't need it.

Push Email:

1

Change email fetch from Push to Manual

iPhone: Settings → Mail → Accounts → Fetch New Data. Change from Push to Fetch or Manual to stop your phone constantly checking for new messages.

Step 3 — Turn On Low Power Mode

1

Enable Low Power Mode

iPhone: Settings → Battery → Low Power Mode.
Android: Settings → Battery → Battery Saver.
This limits background activity and can extend your battery by several hours.

Step 4 — Check Battery Health

On iPhone:

1

Go to Settings → Battery → Battery Health & Charging

If Maximum Capacity is below 80%, the battery is worn and may need replacing. Apple offers battery replacements at Apple Stores and authorized service providers.

Battery health tips:
• Charging your phone overnight every night degrades the battery faster over time
• Try to keep your phone between 20% and 80% for best long-term battery health
• Extreme heat is the biggest enemy of phone batteries — don't leave it in a hot car

Still draining fast after trying this?

Tell Koda your phone model and what you've already tried — we'll dig deeper and find the fix.

Talk to Koda →