Is it safe to charge an 18W phone with a 120W charger? Learn how fast chargers work.

Is it safe to charge a phone with a fast charger? These days, smartphones and chargers use new technology, which makes your phone and battery safer. Let's find out...

Do you also charge your 18W phone with a 120W fast charger? Will doing so damage your phone's battery or pose a risk of explosion? Often, users charge budget phones with fast chargers to charge their phones in an emergency. You may also be wondering if a fast charger could cause a fire or damage the battery. We're going to tell you about the technology used in these current smartphone chargers. How does charging a phone with even lower charging capacity with a fast charger keep your phone safe?

Is a fast charger safe?

If you charge your 18W phone with an 80, 100, or 120W charger, there's no need to worry. Your phone won't explode, and the battery won't be damaged. This is due to the charging technology used in both the smartphone charger and the phone itself. This technology syncs the charging capacity of the battery charger and the smartphone, ensuring the phone receives the required charging capacity. This technology is called the Power Negotiation Protocol.

In simple terms, this technology establishes communication between the phone charger and the smartphone. Once connected to the charger, the phone tells the charger how much power it needs. The charger then supplies only the required amount of power. For example, if you charge a phone with an 18W charging capacity with an 80W charger, the phone will only receive 18W of power. This technology will keep your phone's battery safe and prevent it from exploding.

How is a phone charged?

More smartphones today come equipped with a battery management system based on the Power Negotiation Protocol. This system controls charging voltage, temperature, and current. If, for any reason, the phone's battery begins to overheat or the voltage fluctuates, the system stops charging. This allows the Power Negotiation Protocol and Battery Management System to control charging and keep the battery safe.

Keep these things in mind

Experts recommend charging your smartphone only with the charger that came with your phone.
If, in an emergency, you don't have a charger, use a charger from the same brand as your phone.

Never use locally compatible chargers. These don't use advanced technology, which can lead to battery damage or even explosion.

Avoid leaving your phone on the charger for extended periods of time, as this can cause the phone to overheat.