Why Your Phone Battery Is Draining So Fast (Christchurch Fix Guide)

Even when you’re not using them, some apps quietly keep working — checking for updates, fetching notifications, and eating away at your charge.

💡 Tip: On iPhone, go to Settings → Battery to see which apps use the most power. On Android, check Battery usage under Settings → Device care.

High Screen Brightness or Always-On Display

Your display is one of the biggest battery drains. Keeping brightness high or using “always-on display” can cut battery life by hours.

Try turning down brightness or using auto-brightness — you’ll barely notice the difference but your battery will.

Poor Signal or Weak Wi-Fi

If your phone struggles to find or hold a signal, it constantly boosts power to its antenna — which drains the battery faster.

In weak signal areas, switch to Airplane mode when you don’t need to be connected, or connect to Wi-Fi where possible.

Background Refresh, Location & Bluetooth

Features like location tracking, Bluetooth, and app refresh are convenient, but they quietly keep your phone awake.

Turn off Background App Refresh, Bluetooth, or Location Services when not in use — especially overnight.

Ageing Battery Health

If your phone’s a few years old, the problem might not be settings at all — it’s just chemistry.

Over time, lithium-ion batteries lose capacity and can’t hold a full charge anymore.

At Phone Repair NZ, we can check your battery health in minutes and replace it if needed — most iPhone and Samsung models are done within two hours.