Huawei explains the common mistake that damages phone batteries

Mobile phones are essential tools, but many users charge them incorrectly, leading to accelerated battery degradation and technical issues. Huawei has published a guide to correct charging practices.

The primary concern is overvoltage. According to Huawei, connecting the cable to the phone first and then to the power outlet creates an electrical impulse that damages the device's circuit and shortens its lifespan. The company advises connecting the charger to the power outlet first, which can mitigate direct contact between excess current and the phone.

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If you first connect to the wall outlet and then connect the phone, although overvoltage cannot be eliminated, to some extent, direct contact between excess current and the phone can be avoided.

Signs of improper charging include a buzzing sound from the device. Negative effects can range from data loss and screen flickering to system freezes, constant reboots, and reduced performance, impacting both the circuit board and battery chemistry.

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If you first connect the charger to the phone, then to the outlet, this sequence generates a direct electrical impulse that damages the circuit and reduces the device's lifespan.

Disconnecting the charger also requires care. Huawei warns that unplugging the charger from the phone first can cause a reverse current, leading to severe technical problems and accelerated battery degradation. Experts recommend disconnecting the cable from the phone last.

Finally, manufacturers advise against leaving phones plugged in for extended periods after reaching full charge, as this keeps the device under unnecessary tension. Adopting these simple habits ensures stable operation and prolongs the phone's usability, preventing costly repairs and maintaining optimal performance.

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By first unplugging the charger from the phone, an instantaneous reverse current is generated. This causes serious technical problems, including accelerated degradation of the energy accumulator and shortening of its lifespan.