Experts warn that common smartphone charging habits—like overnight charging, draining to 0%, and using cheap cables—can accelerate battery degradation. With phones more powerful than ever, adopting smarter charging practices is key to preserving battery health, performance, and longevity. Here’s what you should stop doing right now to protect your device.
Plugged In, Burned Out: Charging Mistakes That Are Killing Your Smartphone Battery
In 2025, smartphones are faster, smarter, and more power-hungry than ever. But while battery technology has improved, poor charging habits continue to shorten battery lifespan. Experts from Times of India, Zonsan Power, and CNET have outlined the most damaging mistakes users still make—and how to fix them.
Charging Mistakes You Should Stop Immediately:
Charging to 100% or Letting It Drop to 0%
Lithium-ion batteries perform best when kept between 20% and 80%.
Full cycles stress the battery and reduce its long-term capacity.
Overnight Charging
Leaving your phone plugged in overnight leads to trickle charging, which keeps the battery under constant stress.
Even with modern safeguards, this habit can accelerate wear.
Using Non-Certified Chargers and Cables
Cheap or uncertified accessories may deliver unstable currents, risking overheating and battery damage.
Always use manufacturer-approved or certified third-party chargers.
Charging in High Temperatures
Heat is a battery killer. Charging while gaming or in direct sunlight can degrade battery chemistry.
Experts recommend charging in cool, ventilated environments.
Constantly Charging or Topping Off
While topping off occasionally is fine, constant charging can confuse battery calibration and reduce efficiency.
Let your phone discharge naturally before plugging in.
Heavy Usage While Charging
Streaming, gaming, or multitasking while charging generates heat and slows charging speed.
This can lead to thermal throttling and long-term damage.
Ignoring Battery Health Settings
Many phones now offer battery optimization tools—use them!
Features like adaptive charging and scheduled charging help extend battery life.
Smartphones are built to last—but only if you treat their batteries with care. By ditching these habits, you’ll not only extend your phone’s lifespan but also enjoy more consistent performance and fewer charging headaches.
Sources: Times of India, Zonsan Power, CNET