27.11.2025 15:10
Experts indicate that leaving smartphones charging between 00:00 and 05:00 causes chemical stress in the battery, shortening its lifespan by at least 5 years. It is stated that the healthiest charging times are during the day and in the evening, and there is a warning that keeping the phone plugged in at 100% overnight can reduce its usage time for years.
With the development of technology, smartphones have become an indispensable part of daily life, and battery health has become a more important issue for users than ever before. Experts say that a mistake many people unknowingly make seriously reduces battery life: charging the phone at the wrong times.
THE MOST RISKY HOURS FOR THE BATTERY: 00:00 – 05:00
According to technology experts, the time period when smartphone batteries are most vulnerable is between midnight 00:00 and 05:00 in the morning... Leaving the phone charging during these hours causes the device to remain plugged in at 100% for an extended period.
This situation causes the following in lithium-ion batteries:
- Creates chemical stress,
- Accelerates battery wear,
- Causes capacity loss,
- Increases safety risks due to overheating.
Experts define overnight charging as the "silent enemy of the battery."
WHY IS IT SO HARMFUL?
A phone that stays charged overnight:
- Is held at maximum voltage for a long time,
- Both the device and the battery heat up,
- The battery cycle life decreases rapidly,
- Shortens the phone's usage time by at least 5 years in the long run.
Additionally, unnoticed overheating during sleep can lead to significant safety issues, including fire risks.
THE MOST ACCURATE CHARGING TIMES
According to experts, charging the phone during hours when it is actively used and can be monitored is much healthier.
Recommended optimal time periods:
- 08:00 – 12:00
- 17:00 – 21:00
During these hours, the chemical balance of the battery is more stable, and the user can monitor the charging process.
GOLDEN RULES FOR EXTENDING BATTERY LIFE
- Keep the battery between 20% – 80%.
- Do not leave it charging overnight.
- Use fast charging only when necessary, not every day.
- Prefer original adapters and cables.
- Avoid using the phone for intensive tasks while charging.