Phone batteries degrade over time and eventually need replacing. The tricky part is knowing when the battery is genuinely failing versus when other factors are causing your phone to drain faster. This guide explains exactly what to look for.
Quick Answer: Does My Phone Need a New Battery?
Your phone likely needs a new battery if it drains very quickly, shuts down unexpectedly with charge remaining, only works when plugged in, or the battery health reads below 80%. Protech Repair in Cheam replaces phone batteries for all major brands from £25.
Key Signs Your Phone Battery Is Failing
1. Battery Percentage Drops Rapidly
If your phone goes from 100% to 20% in just a couple of hours with normal use, the battery can no longer hold its full capacity. A new battery will restore full day-long performance.
2. Phone Shuts Down Before Reaching 0%
Unexpected shutdowns when the battery still shows 20%, 30% or more are a classic sign of a failing battery. The battery is no longer accurately reporting its remaining capacity.
3. Phone Only Works When Plugged In
If your phone dies the moment you unplug the charger, even with charge showing on screen, the battery is effectively dead and must be replaced.
4. iPhone Battery Health Below 80%
On iPhones, go to Settings > Battery > Battery Health. If the maximum capacity is below 80%, Apple recommends replacement. Below 80%, the battery is significantly degraded and may also be causing the processor to be throttled for stability.
5. Phone Runs Hot During Charging or Use
Some heat during charging is normal. Excessive heat throughout the day, especially when the phone is just sitting idle, can indicate a failing battery working harder than it should.
6. Battery Takes Much Longer to Charge
A degraded battery may also charge more slowly than when the phone was new, or may get stuck at a certain percentage during charging.
Phone Battery Replacement at Protech Repair Cheam
Protech Repair in Cheam replaces batteries for all phone brands. iPhone battery replacement starts from £25. Samsung battery replacement starts from £29. The repair takes 20 to 30 minutes and comes with a 90-day warranty. We serve customers from Cheam, Worcester Park, Sutton, Epsom, Morden, Carshalton and Wallington.
Frequently Asked Questions
How long do phone batteries last?
Most phone batteries are designed to retain 80% capacity after 500 charge cycles, which typically equates to about 2 years. After 2 to 3 years of use, battery degradation is normal and a replacement will restore performance.
How much does phone battery replacement cost in Cheam?
Phone battery replacement at Protech Repair in Cheam starts from £25 for iPhones and from £29 for Samsung phones. Call 020 3411 4022 for exact pricing for your model.
Replace Your Phone Battery in Cheam Today
Visit Protech Repair at 3 Cheam Common Road, Worcester Park, KT4 8TL. Same-day battery replacement. Free diagnosis. 90-day warranty. Serving Cheam, Sutton, Epsom and all of South London.
Call: 020 3411 4022 | WhatsApp: +44 7543 637893
