Nowadays many smartphone companies claim 120W or more fast charging, through which the phone can be charged from 0 to 100% in a few minutes. But does such high-speed charging reduce the life of your battery? Therefore, before buying a smartphone with ultra-fast charging, you should understand the advantages and disadvantages of fast charging. Why are backups slow? 120W fast charging causes high heat and voltage stress on the battery. Repeated use of fast charging reduces the battery life rapidly.
According to research, fast charging reduces battery cycles. In fact, ultra-fast charging puts more thermal stress on the battery, which can increase its degradation. Therefore, after a few months, users start noticing the battery life getting weaker.
What are the disadvantages of 120W fast charging?
High-voltage chargers like the phone’s 120W send current very quickly into the battery, which puts a huge strain on the lithium-ion cells inside. This process makes the electrochemical reaction in the battery unusually fast. Faster reaction means more heat, more pressure and faster battery degradation.
Due to this, the health of the battery deteriorates quickly and its charge-holding capacity reduces. The heat generated by fast charging is the biggest enemy of the battery. Heat has the biggest impact on the lifespan of lithium-ion batteries.
During 120W charging, the temperature of the phone rises much faster than a normal charger. When the battery gets too hot, the cells in it get damaged and their capacity reduces.
Many tests show that batteries used in high heat conditions can degrade 20 to 30% faster than normal batteries. Charging cycles are affected: Every battery has a limited number of charging cycles.
After this his capacity starts decreasing. With fast charging, this cycle is reduced even further because ultra-fast charging keeps the battery in a constantly high state-of-charge, which is not good for the battery chemistry. Due to this, the battery capacity reduces to 90% or less within 8-12 months of use.
What is the correct way to use it?
Do not use fast charging daily. Use the 120W charger only when needed immediately. Otherwise it is better to charge with normal speed of 10W-30W. Avoid charging overnight and do not do gaming or excessive use of the phone during charging. To extend the life of the battery, it is always considered safest to keep it between 20% to 80%.
