Мой телефон всё время разряжается.

Because телефон is a masculine noun in Russian. The possessive pronoun мой has to agree with the noun in gender, number, and case.

• мой телефон = my phone
• моя книга = my book
• моё окно = my window
• мои друзья = my friends

So мой is the correct masculine singular form here.

Всё время means all the time, constantly, or keeps in natural English.

In this sentence, it does not mean literal uninterrupted time every second. Very often it just means something happens repeatedly and annoyingly.

Examples:

• Он всё время опаздывает. = He is always late.
• Она всё время жалуется. = She keeps complaining.

So Мой телефон всё время разряжается means the phone keeps running out of charge again and again.

Because the verb here is разряжаться, not разряжать.

• разряжать = to discharge something, to drain something
• разряжаться = to discharge itself, to run out of charge

So:

• Я разряжаю аккумулятор. = I am draining the battery.
• Аккумулятор разряжается. = The battery is running down.

In Мой телефон всё время разряжается, the phone is the thing undergoing the process itself, so Russian uses the -ся form.

The -ся ending often makes a verb reflexive or intransitive, but the exact effect depends on the verb.

Here it helps show that the subject is undergoing the change itself, rather than doing it to something else.

Compare:

• разряжать телефон = to drain a phone
• телефон разряжается = the phone is losing charge / the phone is running down

So in this sentence, -ся is part of the normal verb used for batteries and devices losing charge.

It is present tense, third person singular.

The verb is разряжаться. Present-tense forms:

• я разряжаюсь
• ты разряжаешься
• он / она / оно разряжается
• мы разряжаемся
• вы разряжаетесь
• они разряжаются

Because телефон is singular and means it, we use разряжается.

Russian often uses the present tense for repeated habitual actions, just like English does.

So разряжается can mean:

• is running down
• keeps running out of charge
• always dies

The idea of repetition comes mainly from всё время, not from a special tense form.

Yes, very normal.

Russian commonly uses разряжаться for batteries, phones, laptops, and similar devices:

• Телефон разрядился. = The phone died / ran out of battery.
• Батарея разряжается быстро. = The battery drains quickly.
• У меня наушники разрядились. = My headphones ran out of charge.

Another common verb is садиться in this context:

• Телефон садится. = The phone battery is dying / going flat.

Both are common, though разряжаться is a bit more directly about charge.

Разряжаться is imperfective.

It is used because the sentence describes:

• a repeated action
• an ongoing tendency
• something that happens regularly

That is exactly the kind of situation where Russian usually uses the imperfective.

Compare:

• Мой телефон всё время разряжается. = My phone keeps running out of charge.
• Мой телефон разрядился. = My phone ran out of charge / died.
  This is perfective and refers to a completed event.

The perfective form is разрядиться.

Compare:

• разряжаться = to be running down / to keep losing charge
• разрядиться = to run out of charge completely

Examples:

• Телефон разряжается. = The phone is running down.
• Телефон разрядился. = The phone has died / run out of battery.

In your sentence, the imperfective is better because of всё время.

Because Russian, like English, can talk about the phone itself doing this.

Even though physically it is the battery losing charge, speakers naturally say:

• Телефон разрядился.
• Телефон разряжается.

This is very idiomatic and common.

You could also say:

• У телефона быстро садится батарея. = The phone’s battery dies quickly.
• Батарея в телефоне быстро разряжается. = The battery in the phone drains quickly.

But your original sentence is completely natural.

Yes. Russian word order is flexible, though the most neutral version here is:

• Мой телефон всё время разряжается.

Other possible orders:

• Всё время мой телефон разряжается.
• Мой телефон разряжается всё время.

These are understandable, but they may sound more marked, depending on context and emphasis.

Usually:

• putting всё время earlier can emphasize the constant repetition
• putting it later may sound slightly more conversational or stylistic

For a learner, the original order is the safest and most natural.

Всё is pronounced roughly like vsyo.

The letter ё is important because it shows the yo sound. So:

• все = all / everyone, usually pronounced vsye
• всё = everything / all, pronounced vsyo

In real Russian texts, ё is often written as е, so you may see все время even though it is actually pronounced всё время.

In learning materials, it is very helpful when ё is written explicitly.

Both.

Literally:

• всё = all / everything
• время = time

But together, всё время is a very common fixed expression meaning:

• all the time
• constantly
• again and again

So it is best to learn it as a chunk.

Yes, but it is slightly different.

• всё время = all the time, constantly, keeps doing it
• всегда = always

In many contexts they are similar, but всё время often sounds more like an annoying repeated process happening again and again.

Compare:

• Мой телефон всегда разряжается к вечеру. = My phone always runs out of charge by evening.
• Мой телефон всё время разряжается. = My phone keeps running out of charge.

In your sentence, всё время sounds very natural.

It is about discharging.

The root заряд is connected with charge. With раз-, the verb means something like to un-charge / discharge.

So:

• заряжаться = to charge up
• разряжаться = to discharge, run down

Examples:

• Телефон заряжается. = The phone is charging.
• Телефон разряжается. = The phone is losing charge.

Yes, absolutely. It is a very natural everyday sentence.

Common related phrases include:

• Мой телефон быстро разряжается. = My phone drains quickly.
• У меня телефон разрядился. = My phone died.
• Телефон всё время садится. = The phone battery keeps dying.

So your sentence sounds normal and idiomatic in spoken Russian.