Each battery is checked and tested by all sellers.🔬
If it does not reach at least 80% of its initial charging capacity, it is automatically replaced by a new battery.
And if the battery performance is not satisfying, you can contact your dealer to report the problem and activate your warranty.
*Battery performance will vary depending on the age of the device. New OS require more space and battery power to run efficiently. Because new OS requires more power to run, the battery on older devices will drain quicker.*