iPhone & Samsung Battery Replacement in St. John’s — Complete 2025 Guide

If you live in St. John’s, Newfoundland and Labrador, your phone probably goes everywhere with you – to work, on the trails, and through the wind, rain, and snow. Over time, that daily use wears down your battery.

This guide will help you understand:

When you should replace your phone battery
What “Battery Health” really means
The warning signs of a failing battery
DIY vs professional replacement
How Phonetastic Repair replaces batteries at your door

Why phone batteries wear out

Modern phones use lithium-ion batteries. They are lightweight and fast-charging, but they age over time. Each full charge cycle slowly reduces total capacity.

As the battery ages, you may notice:

Faster battery drain
Jumping percentages (for example, 20% to 5%)
Random shutdowns
Overall slower performance
Heat during normal use

When should you replace your battery?

1. Low Battery Health

Go to Settings → Battery → Battery Health. If the number is:

100–90% – normal
89–81% – reduced performance
80% or below – time to replace

2. Your phone can’t last a full day

If you need to charge multiple times a day with normal use, it’s a strong sign your battery is worn.

3. Random shutdowns

Sudden restarts or shutting off at 10–30% are classic battery failure symptoms.

4. Overheating

If your phone gets hot during simple tasks, the battery may be under strain.

5. Battery swelling

If the screen starts lifting or the phone body looks puffy, stop using it immediately. A swollen battery is dangerous.

DIY vs professional replacement

DIY is tempting, but risky. Many people accidentally:

Damage their display
Tear small flex cables
Lose water resistance
Install cheap, unsafe batteries

For most users, professional replacement is safer.

Battery replacement in St. John’s — Phonetastic Repair

We offer door-to-door battery replacement in St. John’s, Paradise, and Mount Pearl.

Here’s how it works:

We pick up your phone
Replace the battery with proper tools
Test charging and performance
Return it the same day

Battery quality

We use high-quality, reliable replacement batteries from trusted suppliers.

FAQs

How long does replacement take?

Usually within a few hours.

Will I lose my data?

No – battery replacement does not remove data.

Can a new battery make my phone faster?

Yes. When the old battery is weak, the system reduces performance.

Can you fix phones that don’t turn on?

Often yes – dead batteries can cause no-power issues.