Skip to content

Free next-day delivery before 3pm

Guide

How to check battery health on a phone

Where to find battery health on iPhone and Android, and what the number means.

On an iPhone

Open Settings, tap Battery, then Battery Health & Charging. Maximum Capacity shows how much charge the battery holds compared with when it was new.

On Android

Where you find it depends on the brand. Samsung shows battery information in the Samsung Members app under diagnostics; some other phones show it under Settings → Battery.

What the number means

Batteries slowly lose capacity as they’re charged. A lower figure means shorter time between charges.

Phonify’s battery standard

We measure capacity and cycle count on every device. If capacity is under 85%, we fit a quality new battery before the device is listed.

Newsletter

Get the drops first.

Weekly deals, price drops on devices you’re watching, and zero spam.

  • Weekly deals
  • Price-drop alerts
  • No spam, ever
App coming soonComing soonApp StoreComing soonGoogle Play
A hand holding a refurbished smartphone