Good morning dear readers of Tecnogalaxy, today I will explain how to preserve and therefore make the life of the smartphone battery last longer .

By now almost all smartphones do not provide the user with easy access to their batteries, this includes all iPhones and almost all new Android smartphones. Official battery replacement can be expensive or inconvenient (try to get an official battery replacement at an Apple Store this year…).

Let’s go back to the main theme, namely how to preserve and extend the battery life of your smartphone. By battery life I mean how many years and months your battery will last before you need to replace it. Conversely, battery life refers to how many hours or days your phone will last on a single charge.


With each charge cycle the smartphone battery degrades slightly. A charge cycle is a complete discharge and charge of the battery, from 0% to 100%. Partial charges count as a fraction of a cycle. Charging the phone from 50% to 100%, for example, is equivalent to half a charge cycle. Do it twice and it’s a full charge cycle. Some phone owners use more than one full charge cycle per day, others use less. It depends on how much you use the phone and what you do with it.

Battery makers say that after around 400 cycles, a smartphone’s battery capacity degrades by 20%. It will only be able to store 80% of the energy it originally had and will continue to degrade with additional charge cycles.

The reality, however, is that phone batteries are likely to degrade faster. An online site claims that some phones reach that 20% degradation point after just 100 charge cycles . And just to be clear, the phone’s battery doesn’t stop degrading after 400 cycles. This 400 cycles / 20% figure is to give you an idea of ​​the decay rate.

If you can slow down these charge cycles, if you can extend the daily life of your phone’s battery, you can extend battery life as well.

Basically, the less you discharge and recharge the battery, the longer the battery will last. The problem is, you bought your phone to use it. You need to balance battery life and battery life with utility, using your phone as and when you want.

Some of my tips below may not work for you. On the other hand, there may be things you can implement quite easily that don’t restrict you in your style.


If the phone gets very hot or cold, it can overcharge the battery and shorten its life. Leaving it in the car would probably be the worst culprit if it’s hot and sunny outside or freezing in winter.


Quickly charging your phone stresses the battery unless you really need it, avoid using fast charging.

In fact, the slower the battery charges, the better, so if you don’t mind slowly charging the battery overnight, try this. Charging your phone from your computer, as well as some smart plugs, can limit the current flowing into your phone, slowing its charging rate.


Older types of rechargeable batteries had a “battery memory”. If you didn’t charge them to full and unload them to zero, they “remembered” and reduced their useful range. It was better for their lifespan if you always discharged and fully charged the battery. The batteries of the phones of today work in reverse order. Phone batteries are happier if you keep them above 20% capacity and below 90%. To be extremely precise, they are happiest if their capacity is around 50%. Short charges are fine, by the way, if you’re the type of person who often finds yourself refilling your phone for fast charges, it’s fine for the battery. Paying close attention to this could be too micrometric management.


The healthiest charge for a Li-ion battery appears to be around 50% . If you intend to store your phone for an extended period, charge it to 50% before turning off and storing it. This is easier for the battery than charging it to 100% or letting it discharge to 0% before putting it away.

The battery, among other things, continues to degrade and discharge if the phone is turned off and not used at all. This generation of batteries was designed to be used.

That’s all, see you in a future article.

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