Declining battery performance in smartphones or tablets can cause significant user frustration. For subscribers of au network services, battery replacement options are readily available. This guide outlines various battery replacement solutions to help restore devices to optimal performance.

au offers multiple battery replacement solutions depending on device type. Removable batteries allow for self-replacement, while built-in batteries require professional service. iPhone and iPad users must contact Apple Support for battery replacements.

For devices with removable batteries, users can purchase genuine replacements through au's online shop:

• Purchase Method: Verify battery compatibility with your device model before ordering from au's online shop.
• Replacement Steps:
  1. Power off the device
  2. Open the battery compartment (typically on the back)
  3. Remove the old battery
  4. Insert the new battery
  5. Secure the compartment cover
  6. Power on the device

Devices with non-removable batteries require professional service through au's mail-in repair program:

• Service Process:
  1. Review repair service details on au or UQ mobile's website
  2. Submit an online request with device information
  3. Ship the device to the designated service center
  4. Receive diagnosis and cost estimate
  5. Approve and pay for service
  6. Receive repaired device
• Important Notes:
  • Back up all data before service
  • Review all service terms and conditions
  • Only use authorized service channels

Apple device owners must contact Apple Support for battery services:

• Service Options:
  1. Online Appointment: Schedule service through Apple's website or support app
  2. In-Store Service: Visit an Apple Store or authorized provider
  3. Mail-in Service: Ship your device using Apple-provided materials
• Important Notes:
  • Back up data and disable "Find My iPhone" before service
  • Understand warranty coverage and potential costs
  • Only use Apple-authorized service providers

Common indicators of battery degradation include:

• Significantly reduced usage time between charges
• Unexpected device shutdowns with remaining charge
• Noticeably slower charging times
• Visible battery swelling or casing deformation
• Performance degradation due to insufficient power

To extend battery lifespan, consider these practices:

• Avoid complete discharge or continuous charging
• Protect devices from extreme temperatures
• Disable unused wireless features when possible
• Reduce screen brightness to conserve power
• Keep operating systems updated for battery optimization
• Limit extended use of power-intensive applications