Random shutdowns or reboots are a clear sign that your smartphone needs a new battery.

If your phone is nearing three years of continuous use, a new battery will almost certainly offer at least some improvement to its day-to-day longevity. This is because lithium-ion batteries start to experience performance loss after a few hundred charge cycles. If you’re using an iPhone, there’s an easy way to check your battery’s current capacity. Open the Settings app, navigate to Battery > Battery Health, and check the Maximum capacity section. Apple advises that you should consider replacing your battery once its health falls below 80% of its original capacity — or approximately 500 charge cycles.

Replace your phone’s battery from us

The easiest way to replace your smartphone’s battery is to have an expert swap the battery. This is because most manufacturers use adhesive to secure the back and front panels of your phone, which are usually made out of delicate glass. While this adhesive helps with improving your phone’s water resistance, it also often makes repairs more difficult and labor-intensive.