Studies and manufacturers’ experience show that limiting the load to around 80-90% reduces this internal stress. Result:
- Less heat generated at the end of charging, therefore less risk of degradation.
- Less chemical wear in the long term.
- Battery life that remains stable for longer.
This doesn’t mean you should never reach 100%. If you’re going on a trip or know you won’t have access to an outlet, a full charge is still useful. The goal is simply to prevent this from becoming a daily habit.
Small steps to extend battery life
- Recharge before reaching 0%.
Frequently going down to 0% wears out the battery. Ideally, plug it in around 20%. - Favor partial recharges
A few minutes of charging spread out throughout the day is better than a long charge to 100%. - Protect it from extreme temperatures
Avoid leaving your phone in direct sunlight or in very cold places. Both heat and cold can reduce its performance . - Use good quality chargers
Poor quality models may provide inconsistent voltage, which can damage the battery . - Enable “optimized charging”
On many smartphones, this feature delays the final part of charging until the usual time you unplug the device.
