Are you addicted to your phone battery? no, that’s not the case

In 2019, the Nobel Prize in Chemistry awarded a trio of researchers who have had a direct impact on the evolution of various electronic products. John B. Goodenough, M. Stanley Whittingham and Akira Yoshino they were responsible for the development of the batteries lithium ionon our smartphones, notebooks, tablets, tools, electric cars, and even satellites.

We are talking about a standard battery that has been commercially available since the early 90’s. Despite the constant evolution of batteries and the devices that use them, some people continue to ask a question.

For some it’s not even a question, it’s a categorical statement: cell phone batteries are addictive! You can extend this expression to other products that use the same type of battery, such as laptops.

This article is intended to shed light on this issue once and for all to help you figure out why your cell phone batteries and other electronics are not addictive!

To help you understand why a lithium-ion battery is not addictive, here are some things to look for. The first of these corresponds to the classification according to their voltaic cells.

Batteries: primary and secondary cells

Primary batteries cannot be reloaded. Once they have been given the specified power, they should be discarded.. With the discharge, the chemical elements are converted into electrical energy until they are permanently depleted.

Secondary batteriess are rechargeable, the chemical action is reversible. What chemical action is this? Converting chemical energy into electricity. Remember, by definition, that a battery is a device capable of converting the chemical energy of its active materials into electrical energy. A battery is a composition of energy cells connected in series, parallel, or both.

The general rule is that 80% of the capacity of a secondary battery can withstand 300 full charge and discharge cycles.

Well, if we’re talking about smartphones or any other battery-powered device, we’re talking about battery-powered devices with secondary cells.

That knowledge between the terms “Primary battery“and “secondary battery” it may be a bit out of place on the part of the general public, however, when we talk about measuring secondary batteries, the subject is much more common. You may have heard someone say, “ah, my phone has a 3,000 mAh battery (random value)”. The manufacturers themselves highlight this information.

How do you explain this CBT?Batteries are measured in Ah (Ampere-hour) or Wh (Watt-hour): One watt-hour indicates how much energy is stored, or battery power per hour: The case of Ah is a unit of measurement of battery capacity, Ah how much energy is stored in a battery is enough to supply an ampere current for an hour.

It is possible to operate a 24-watt battery, for example, a power tool that consumes 24 watts per hour, if the machine needs more power, such as 48 watts, the machine can only operate for a period of time. thirty minutes. These calculations are benchmarks and, in practice, with higher output power requirements, will affect other battery characteristics by reducing the operating time of the machine ”.

Lithium-ion battery is not the first standard with secondary cells (rechargeable due to reversible chemical action). There is also lead acid battery, known for its use in automobiles, nickel metal hydride battery and nickel cadmium cell batteries.

Memory effect

In fact, it was thanks to a special feature of the battery nickel-cadmium (released 1899) Many people today point out that the battery is “battery dependent.” The most talked about feature of the nickel-cadmium battery is the famous one “memory effect”this would be the effect associated with the jargon in the village “century battery”. According to electrical engineer Nihal Kularatna, this is the most correct term for the so-called memory effect “adaptation”.

nickel cadmium battery

The memory effect is associated with a technical feature of this battery. If the battery is always discharged at the same level and then recharged, over time it acquires what is known as memory, the battery would adapt to its charging pattern, losing its full capacity.

The memory effects or conditioning caused by the mode of use causes the formation of crystals, an active part of a nickel cell, and conceals the active material of the electrolyte, which is responsible for enabling the conductivity of ions.

Even with lithium-ion batteries, which have been on most cell phones for many years, some still believe that as soon as they buy a new device, a very long initial charge should be applied, ranging from 6 to 8 hours. I’ve heard), or that a mobile phone can’t be charged before zero charge, a recommendation that would be a way to avoid dependency (or memory effect).

These recommendations are in stark contrast to the advances offered by lithium-ion batteries. Moreover, some research suggests that even when we talk about nickel-cadmium batteries, the memory effect would only occur in a process of charging and discharging at the same point over the years. So even if this limitation is technically feasible, the chances of it happening are remote.

So far, I think it’s clear to you that your device’s battery dependency doesn’t exist. However, it is very likely that your device may not be as efficient as when you purchased it, and the battery life seems to last less. Won’t that be the effect of addiction? The answer is no!

battery wear

I don’t want to discourage you, but the lithium-ion batteries start to run out when you leave the factory. This is not the only disadvantage when we talk about this type of battery, it ends up accelerating the process of wear at high temperatures. In more extreme situations, as well explosions may occur.

To understand this part of the feeling that battery lasts less, which has nothing to do with dependency or memory effect, it is important to distinguish between two concepts that are often treated as if they were the same thing: battery life and battery life. life.

  • Battery life: duration on a single charge. This is until you need to put it in the charger so that you can continue to use the device.
  • Battery life: relation to the natural process of erosion. As long as you can be careful with your device, it will shorten its life and cause a drop in performance – the time you can use before recharging your device – compared to when it was purchased, which is brand new. leaf

The battery life of your device actually becomes “weaker” during its lifetime due to what is known as a battery cell cycle. Complete upload and download process.

This cycle charging and discharging process does not apply to certain times when you disconnect and reconnect the device in certain situations. For example, it is charging your phone, then removing it from the charger and reinserting it a little later, which is not considered as a cycle. The cycle occurs when the battery is 100% discharged.

In each complete cycle, there is a process of wear and tear, which helps to reduce the efficiency of the battery in terms of its useful life. Manufacturers typically specify a lifespan of between 300 and 500 charging and discharging cycles, but this can vary more and less.

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Instead of worrying about battery dependency, which means nothing, you should do your best to keep your battery as long as possible. As I said above, high temperatures further speed up the process of draining your phone’s battery life, which directly affects its life on a charge.

The ideal operating temperature is in between 16 and 22 ° C. Avoid exposing your phone to high temperatures 35ºC. In some parts of Brazil, it can be a difficult task all year round, but keep in mind that even in very hot places, you can take some safety precautions, such as keeping your cell phone out of the sun. for a long time, especially if the battery is charging. Extremely cold environments can speed up the erosion process.

Avoiding unloading or fully loading is also an interesting tip, considering this cycling count, which means that there is no full load or full load. Always try to charge the battery when it is already between 15% and 20% full.

Another valuable tip for battery conservation is when the device is turned off for a long time. If your device is turned off for a long time, make sure the battery charge is around 50%in fact, if it is kept completely unloaded, it can be included in the process intense discharge.

At the same time, if it is stored with a fully charged charge, it can also help to shorten its life, explains Apple on its website. So balance is key!

century battery

Seriously, treat the temperature of your device with care. In addition to grotesque design flaws, as in the case of the Galaxy Note 7, the growing trend of thinner devices is not only the responsibility of the manufacturer, but also the design of the product, which requires the user’s attention. device usage.

Never charge the battery packed or overheated, and always use quality chargers.

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