Found the best way to charge the iPhone, so as not to ruin the battery

In 2020, Apple stopped supplying the power supply with the iPhone, and offered a washer with MagSafe magnets to replace the wire.

These changes are confusing. I myself have seen more than once how desperately people wanted a big adapter and a “pancake” with wireless charging, because new and technological. At best, increased risk and wireless charging is useless, in case of increased morbidity.

Apple draws up to 30W for the Lightning port and up to 15W for MagSafe.

I figured out which charging option saves the health of your battery.

Short. Small 5W unit is the safest

You won’t have to look at the article for a long time, here is its summary.

And now about each cargo in more detail.

Why iPhone battery pops up resource

iPhone Battery Diagram

In a smartphone lithium-ion batteries (lithium-ion). This technology has high high power and good resource endurance in the expected future.

The lithium-ion battery consists of two chambers: copper-graphite anode and aluminum-lithium cationode.

Between them there is porous separator (separator) impregnated with electrolytes, through which lithium ions during charging and discharging. When all the ions are in the negative cell of the anode, the charge is full, when the ions are in the positive cathode, then the charge is at zero.

Separator over time crystallizesin the battery oxidation products anode and cathode, all this interferes with the passage of lithium ions. There are fewer of them, and the battery capacity is getting worse.

That’s how it happens wear resource.

High temperatures accelerate battery aging

Types of regular Apple chargers from harmless to the province itself from top to bottom

Li-ion batteries work best at temperatures between 0 and 35 ºC. The ideal temperature for use is between 16 and 22 °C.

Temperatures above 45°C significantly increase the rate of degradation of battery components.

The more intense and at a higher temperature are detected, the faster the crystals grow in the separator (the zone through which ions pass back and forth) and the faster the components that make up the battery oxidize. A high temperature blocks the movement of electrons, and there are fewer active ones.

Therefore, in the heat, intensive tasks such as shooting or playing games cannot be found on the smartphone. Charging with a charging adapter and wireless charging is all the more not worth it.

As for winter, when the smartphone turns off abruptly, it is not so scary, but it still hurts.

Cold slows down the reaction of electrons between the anode and cathode (two cells, due to which the reaction is generated). Therefore, the phone may work slowly.

Once placed back in a warm environment (0 to 35 degrees C), the reactions become normal and return to their previous performance.

The weaker the power supply, the longer the life of the iPhone

YouTuber SimplyPops compares iPhone 14 Pro charging speed and heat with 5W, 20W, 30W and MagSafe adapters.

Power block 5 W heating metals to 32ºC.

From 0 to 100 percent in 3 hours and 50 minutes.

Blocks 20 W and 30 W raised the temperature to 35ºC.

From 0 to 100 percent in 1 hour 55 minutes.

MagSafe warmed up the smartphone 35ºC.

From 0 to 100 percent in 3 hours and 5 minutes.

The test also included 12W adapters (the ones that came with the iPad) and 35W adapters (the ones that came with the MacBook Air to the M2). They gave approximately the same result (1 hour 58 minutes and hour 48 minutes) as the 20W and 30W units. Both in terms of heating and charging speed.

It turns out that the MagSafe magnetic pancake heats up the smartphone like the rest, but keeps it hot for a third longer than wired solutions. This is an undesirable solution if you want to keep your battery healthy.

Minimum battery voltage requires a 5W adapter. It will accumulate for about 4 hours, but due to the slow reaction and low temperature, it may be the most gentle on the materials that make up the battery.

Five rules for battery health

Below are options for those who are more in awe of iPhone battery health and ready to rebuild the experience.

Ordinary users observe only the first and second forecast. The rest of the tips are more inconvenience than tangible benefits.

1. Turn on calculated charging.

Turns on after Settings > Battery > Battery status > Optimized Charging [ВКЛ.]

The smartphone independently slows down the charging time after replenishment to 80%, so that it does not belong to 100% harmful to it just like that.

2. Avoid stress at extreme temperatures.

The battery in iPhone performs best at temperatures between 0 and 35 ºC.

To temporarily worsen the cold with physical-protective programs and thereby slow down the programs until you return to the heat.

The heat will permanently degrade the materials inside the battery and reduce the number of ions available to generate power. The capacity will become permanently smaller.

3. Use the weakest power adapter available.

It’s best to leave your iPhone on charge overnight. 5 W block (the same ones are always included in the kit in advance).

Powering up to 100% will take up to 4 hours on standard models and up to 6 hours on Plus and Max, but will keep smartphones cold, and therefore more “healthy”.

4. Don’t cheat on wireless charging. Even MagSafe.

Any inductive coils with which energy is processed generate more heat than charging by wire.

The frequency of metabolic processes that make up the battery spoils their resource work faster.

5. Remove from charge at 80%, load at 20%.

It is harmful for the battery to completely “empty” and completely “fill up”.

Smartphone algorithms don’t allow it to do so until a critical point, but you can help it by leaving 20 percent of the gap. True, in this way, the iPhone will actually be at the level of 60% of the declared and the semantic undertaking disappears.

📸 All photos in the article: