Smartphone without battery from power supply. How to turn on a phone without a battery using available means

It's broken, lost, or needs to be charged separately. What to do if important information remains on the device? It can be launched. But for this you must have a constant source of energy. It must be configured and connected correctly. Figure out how to turn on your phone without a battery. You can use the device even without a battery.

You can turn on a smartphone without a battery.

What do you need to know?

If you try to connect a charger or USB adapter and start the smartphone, nothing will work. They do not work directly with the device - the current strength is not suitable. Energy is supplied only through the battery.

There are models with a dedicated power connector. If you have just such a mobile phone, then figuring out how to turn on the phone without a battery will be easy. You need to know some characteristics of the device: maximum voltage and current. And use the appropriate adapter. But now gadgets with a separate connector are not very common. In modern smartphones, the charging socket coincides with the USB port. To add a dedicated slot to them, you will have to rebuild the entire power supply. And only professionals can do this.

And how to start a smartphone without a battery if there is no special connector? There are options to solve the problem. But they can harm the device, since it is powered only through a battery. And all workarounds involve some risk.

If your battery is broken, it is better to purchase a new one rather than start the device using improvised means. It’s cheaper and safer, and you can pick up parts made for your phone model. It’s another matter if you urgently need a gadget and don’t have time to look for suitable batteries. For example, he has important information or a mobile number in his memory. And you need it right now. Then you can take a risk.

It will be useful to figure out how to turn on a smartphone without a battery if it is part of an alarm or security system. Such designs send messages using a telephone. It must work constantly and in any conditions. Even outside in the cold. Batteries run out quickly at sub-zero temperatures. Therefore, you will have to do without them. It is better to connect an unnecessary but reliable device to the alarm system. Once you connect a phone without a battery to it, you will no longer be able to use it for its intended purpose.

If a smartphone has a data exchange module with a battery installed, it is unlikely to work without a native power source. This chip provides information about the battery and its type (Lithium-Ion or NiMH). To start, the device must “see” it.

Direct to contacts

There is a way to turn on your phone without a battery through charging. He's quite dangerous. You will connect the smartphone contacts directly to the wire. Without any “intermediaries” in the form of power supplies or stabilizers. And if the power or current is not suitable, the gadget will never turn on again.

Open the device case and find the contacts in it to which the energy source was connected.
Determine where the “Plus” is in them and where the “Minus” is. If you still have a battery, look at the labels on it. Or check its polarity with a multimeter.
To further figure out how to turn on a phone without a battery with a charger, you need a wire. But not an ordinary cord with a MicroUSB plug, but a special wire. Find or purchase a power adapter with specific specifications. Current strength: up to 2 Amperes. Voltage: 3.4–4.4 Volts. Plus short circuit protection. These values must be maintained under any load.
Take a voltmeter and use it to find contacts with a voltage of 3.2–3.7 Volts.
Connect the wires from the power adapter to them. Consider the polarity: “Plus” to “Plus”, “Minus” to “Minus”.
To check whether the phone can work without a battery, apply current to the adapter and plug it into a power outlet. Do not touch exposed wires while they are live.
If that doesn't help, try swapping the cables. You may have confused "Plus" and "Minus".
If you need a one-time activation (for example, for an urgent call), secure the cable with terminals or electrical tape.
In order for the smartphone to constantly work without a battery, the wires must be soldered. Before doing this, disconnect the adapter.

Communication module

If the device does not start, most likely it has a data exchange module installed with a power source. And how to connect a phone without a battery in this case? Are there really no loopholes? You can disassemble the smartphone and attach the adapter directly without touching the controller.

Another option is to “simulate” the charging unit. That is, make an adjustable resistor yourself. If you have never used a soldering iron, do not know how to properly solder contacts, and do not understand electronics, entrust this work to specialists.

Here's how to turn on a cell phone without a battery if it has a data exchange module:

Take a case from an old battery. Or create a “model” of it from available materials. It should have contact areas.
Typically, in mobile phone batteries, voltage goes to the two outer contacts. Between them there are “information” terminals. They are connected through a 20 kOhm resistance before the last contact to the cable with a negative charge.
Solder contacts onto the “pads” with the same resistance needed in smartphone batteries. This is not the easiest way to start a phone without a battery.
Now connect the wires from the power supply. Just be mindful of the polarity.

The option is not very reliable. At best, nothing will come of it. At worst, you can simply break the device. To prevent the gadget from turning off at all, use an IPS. If you want to make a call or call, a power outlet or computer will suffice.

There are situations in life when you are waiting for an important call and are surprised to realize that your smartphone battery is completely drained. After reading today's article, you will learn how to turn on a cell phone without a battery.

When does such a need arise?

At first glance, this is completely useless knowledge that is unlikely to ever be useful to anyone monitoring the battery condition of their own device. However, information on how to turn on a phone without a battery may be useful in cases where the gadget is used as one of the elements of the security system.

Also, such knowledge will be useful if there is a need to make an urgent call if the factory battery has died. Let's say you purchased a new smartphone, and the old one has been gathering dust in your desk for a long time. As a result, its battery was completely discharged, and the files you needed were saved in the device’s memory. You don't have to buy a new battery to get to them. It is in such situations that people often have the question of how to turn on a mobile phone without a battery.

If absolutely necessary, you can try to briefly “resurrect” your mobile device. This can be done using several different methods.

What will it take to achieve the desired result?

To turn on a completely discharged smartphone, you must first stock up on a stabilization power supply, a voltmeter, flux, rosin, solder, a soldering iron, a USB cable and an uninterruptible power supply. With this simple kit you can revive your mobile device yourself.

Algorithm of actions

Those who do not know how to turn on a phone without a battery should remember that a standard charger is designed to work together with the base battery, which is capable of delivering significant current for a short period of time. If you directly connect a smartphone to it, then the first time you turn on the transmitter, the voltage will drop to almost zero.

Before you turn on your phone without a battery, you need to get a stabilized power supply with built-in short circuit protection. Such a device can be purchased at a specialized store or made independently. The voltage it produces should be 3.7 V.

When the mobile phone is turned off, you need to disconnect it from the standard charger and remove the battery. Next, you need to find two contacts on the battery, the voltage at which varies from 3.2 to 3.7 V. This can be done using a voltmeter.

Remembering to observe polarity, apply voltage to the corresponding contacts of the battery compartment of the mobile device. For those who decide to use this device exclusively as an element of a security system in the future, it is recommended to disconnect the power supply. You can also solder the connection points of the contacts.

Then you need to turn on the power supply and try to activate the mobile device. If everything worked out for you, then the gadget is not equipped with a module for exchanging information from a chip mounted in the battery. This indicates that it is suitable for use in security systems. In this case, the phone is able to function without a battery, but only when electricity is available.

In order to ensure your own safety, you must refrain from conducting such experiments and use this method only in exceptional situations. Don't discount the fact that if it gets too hot, your phone battery can explode.

How can I turn on my phone without a battery via the USB interface?

At first glance, this is one of the simplest and most obvious methods. But in reality, everything is a little more complicated. Mobile devices via the USB interface can receive limited current. Basic charging supplies the smartphone with rated current. When connecting it to a computer or laptop via a USB cable, the limit is 500 mA.

Those who wanted to figure out how to turn on a phone without a battery will need to find a way to connect the charger without using the battery.

Sometimes on the Internet you can find user questions about how to turn on a mobile phone without a battery. At first glance it may seem like this is pampering. But it only seems so. For example, the battery is completely dead and you need to make an urgent call. If you are far from an outlet, then, of course, you will need a battery to make the call. But if you are in a building where there is electricity, then you can easily turn on your mobile phone without a battery. In addition, a similar smartphone connection scheme is often used when integrating it into a security system and alarm system. In this note, we will look at several options for how to turn on your phone without a battery.

Situations that require turning on the phone without a battery

Here are some examples when this may be required:

The battery is broken or low and you need to make a call. If you turn on the phone via the power connector or USB port when the battery is not working, it will not work. Many modern phones have a circuit in which the power is connected to the battery, and power is supplied from the battery to the microcircuit. So, in this situation, you will need to directly connect the power to the smartphone;
Another situation is when you bought a new model, but forgot about your old smartphone. It sat for some time, and the battery in it lost capacity. After some time, you remembered that the necessary information remained on the phone, for example, contacts, photos, videos. Shouldn't you buy a new battery just to get images out? In this case, turning on the phone without a battery will help;
And another situation that was mentioned above. There may be a need to use an old smartphone in alarm systems that operate by dial-up and send alerts via the network. Here you need to keep your smartphone on all the time. Therefore, it turns on directly without a battery.

Let's look at methods for turning on a phone without a battery.

Power on via separate power connector

Modern phones have already lost a separate power connector, but they were common on older models. If your phone has such a connector, then first try connecting using it. If power goes through it, this will be the easiest solution to the problem.

Otherwise, you will have to consider other connection options. In most cases, this is due to modification of the power supply. Here you will already need certain skills and abilities in the field of electrical engineering.

Turning on the phone without a battery via USB

It seems that this option suggests itself and is the simplest. However, it's not easy. The phone takes limited current through the USB port. The device only takes the rated current if it is connected via the included charger. If you connect your phone to a laptop's USB, the current is limited to 500 mA. With such a limitation, the operation of the smartphone will be impossible or unstable.

Power on directly without battery

In order to connect a mobile phone without a battery directly, you will need:

Power adapter (nominal 3.4?4.5 V). It is highly desirable that it has short circuit protection;
Soldering iron and solder;
Multimeter.

Those who are knowledgeable in electrical engineering can assemble a power adapter with the required characteristics from separate components.

Determine the polarity of the battery terminals using a multimeter. This will set the polarity of the mobile phone terminals. You need to solder the wires from the selected power adapter to these contacts. If you need to turn on the phone without a battery one time, then connect the wires using alligator clips. After that, plug the adapter into the network and turn on the smartphone.

That's all! Thank you for your attention and see you again on the pages of the site site

When does such a need arise?

In this case, you can try to briefly “resurrect” the mobile device. This can be done using several different methods.

What will it take to achieve the desired result?

Algorithm of actions

How can I turn on my phone without a battery via the USB interface?

Those who wanted to figure out how to turn on a phone without a battery will need to find a way to connect the charger without using the battery.

What are the options to turn on the phone directly without a battery?

In some situations, you may need to turn on your mobile phone without a battery. It would seem why this is necessary. Anything can happen, for example, if the battery is low, you urgently need to make a call. Of course, if you are away from the electrical network, you can only make a call using an external or. If you are in a room connected to electrical networks, then you can turn on the phone from an outlet without a battery at all. This may be useful when using the device as part of an alarm or security system.

In what situations may you need to turn on the phone without a battery:

This activation may be required if the battery is faulty and you need to make an urgent call. If you simply connect the phone to the power or USB connector with a broken battery, it will not turn on. In most modern models, power from the charger is supplied to the battery, and the phone is powered from it. Therefore, you may need to connect directly;
A situation often arises when a user buys a new model and abandons the old phone. Because it is not used, the battery loses its capacity and fails. Then you remember that your mobile phone has the right contact or cool photos. But the device cannot be turned on due to a faulty battery. In this case, a direct connection is also required. After all, you won’t buy a battery just to turn on the phone once;
And there is another situation when you may need to turn on your mobile phone directly. Often old mobile phones are used in various security systems that work using dialing and notification via cellular communications.

Now, let's figure out how to turn on the phone without a battery.

How to start a phone without a battery?

Turning on the phone via a separate power connector

On modern phone models, it is already very rare to find a dedicated power connector. Although they were common before. If your device has one, then first try turning on the phone through it. This is the simplest, but can only work if the power is not supplied through the battery.

Otherwise, you will have to redo the power supply circuit, and only specialists with appropriate training can handle this. If you are lucky and the device is turned on from the power supply, you need to test it under various operating conditions.

Often, when a mobile device is connected in this way, it begins to work unstably. Reviews from users who have tried this connection indicate that in this case, turning on more power through the power adapter helps.

Attention! Before doing this, study the technical characteristics of the device in the passport or on the manufacturer’s website. You need to find out the maximum voltage and current allowed for the phone. Depending on this, select the power adapter.

On the forums you can also find recommendations for replacing the power supply cable with another one with a shorter length and a larger cross-section. The length, cross-sectional area and material of the cable play a big role in this matter. If they do not meet certain specifications, the phone will not receive the current required for normal operation. This option for connecting a mobile phone can rarely be implemented in practice. After all, the devices currently produced have a power connector combined with a USB interface. We will talk about them further.

Turning on the phone via USB interface

At first glance, turning on a mobile phone via a USB interface may seem very simple. But this is far from true. Through the USB interface, the telephone receives limited current. If you connect the device via the “native” charger, then it takes the rated current. If the connection is made from a laptop or computer, then a limit of 500 mA is set.

Trying to turn on a device with a completely dead battery is the same as turning on a phone without a battery. However, there are several simple ways. The first of them is that if there is no way to recharge a dead power source, you can go to the nearest store for a new battery. In general, we advise you to always take a backup power source with you under any conditions, because at the most important moment, a dead battery can disrupt an important call.

In addition to buying a new battery, turning on your phone when the battery is dead will help you power it, which connects directly to your phone and recharges the battery. You can talk on the phone and use it at the same time. And what’s important is that you don’t need an outlet. Therefore, when going on a trip, do not forget to charge not only the phone battery, but also the external battery. If the “original” battery discharges quickly, then it is better to immediately buy a new one.

Is it possible to turn on the phone without a battery?

There are different situations in life and sometimes you may need to know how to turn on your phone without a battery. Such knowledge will be useful, for example, if you need to make a very important call, on which even people’s lives may depend. Of course, no matter how hard you try, you definitely won’t be able to start your phone without a battery and additional tools at hand. The fact is that a phone is a device that cannot work without a power source.

But there is one method on how to start a phone without a battery. To do this you will need: a smartphone; stabilization power supply; voltmeter; uninterruptable power source; USB cable; soldering iron; solder; rosin; flux, and of course, you must be familiar with these items firsthand and must be able to use them. Otherwise, there is no point in conducting the experiment. For your own safety, try to find a new battery for your Samsung or other brand phone.

How can you turn on a smartphone without a battery.

So, now you will learn in detail how you can turn on your smartphone without a battery. A standard charger is designed to operate the phone together with a battery that is capable of delivering a certain current. If you take out the battery and connect the charger to an empty phone, then of course nothing will happen. For the experiment you will need a stabilized power supply with short circuit protection. This unit should produce a voltage of 3.7 V with a current load in the range of up to 2 A. Using a voltmeter, determine the two contacts on the battery with a voltage of 3.2 to 3.7 V.

Apply voltage from the power supply to the contacts of the phone's battery compartment while maintaining the contacts. Turn on the power supply and try to start the phone. If you succeeded immediately, this indicates that the device is not equipped with a special module for exchanging data with the chip’s battery. Now the phone will work without a battery, but only from the network and only when there is electricity. For your own safety, it is better not to conduct such experiments and not to use such a device unless urgently necessary. Also remember that it may even explode if heated too much. Therefore, do not conduct similar experiments with the power source itself.

If it is very difficult to find a battery for your phone model, then you can always look in online stores. As a rule, many online stores always have a huge selection, so you are unlikely to have problems finding a specific model. Even if suddenly there is no original battery, the consultants will always select an excellent analogue from another manufacturer that will work no worse.

When using a mobile phone as part of a security alarm, you have to turn it on without a battery. Operating the system in extreme temperatures is detrimental to the intercom battery.

You will need

Mobile phone;
- stabilization power supply;
- voltmeter;
- uninterruptable power source;
- USB cable;
- soldering iron;
- solder;
- rosin;
- flux.

Posting sponsor P&G Articles on the topic "How to turn on a phone without a battery" How to open a car using a phone How to charge a battery without a phone How to restore a phone battery

Instructions

Remember that a standard mobile phone charger is designed to work in conjunction with a battery that can supply significant current for a short period of time. The intercom cannot be powered directly from it. Otherwise, the first time you turn on the transmitter, the voltage will drop almost to zero. Purchase or make your own stabilized power supply with short circuit protection. It should produce a voltage of 3.7 V with a current load in the range of up to 2 A. Please note that the voltage should not exceed the specified value during a load drop or when turning the device on and off. After turning off your mobile phone, disconnect the standard charger from it and remove the battery. Using a voltmeter, determine the battery has two contacts with a voltage of 3.2 to 3.7 V. Observing the polarity, apply voltage from the power supply to the corresponding contacts of the phone's battery compartment. If you decide in the future to use the mobile device purely for the security system, turn off the power supply and solder the contact connections. Turn on the power supply and try to start the mobile phone. If you succeed, the device is not equipped with a data exchange module from the chip built into the battery. This means your intercom is suitable for use in a security system. Avoiding shutdowns when there is no voltage in the network, connect an uninterruptible power supply to the alarm system. Install the device in a room that meets the requirements for UPS operation. Check the functionality of the system you installed. Using a USB port, connect your mobile phone to the security device, the common wire of which is disconnected from the device’s power supply cable. How simple

There are such situations - the battery is out of order, and the phone is urgently needed. What should I do, run to the store for a new one? If this is not possible or it is impractical, you can try turning on the phone without a battery.

Contents

Is it possible to turn on the phone without a battery?

You may need to turn on your mobile device in emergency situations - for example, the battery is broken or discharged, and you need to make an important call. Also, a similar situation may arise if a person bought a new mobile device and stopped using the old one. During the period of inactivity, the battery became unusable, and its owner suddenly needed the information stored on the device. Don’t buy a new battery just once for a phone you no longer need.

Even older models are used in some security systems that operate using direct dialing and notification via mobile communications. They are forced to constantly work and a situation with a suddenly discharged battery is not allowed.

In all these situations, turning on the device is necessary, but is it possible? Yes, in most cases this is possible, but it is advisable to have at least a minimal understanding of technology and electrical engineering.

Important! Before you begin one of the methods of turning on without a battery, you should read the instructions for your mobile device. You need to know the maximum voltage and current allowed for this model.

Methods for turning on a phone without a battery

There are various options for how to start a phone without a battery:

Via a separate power connector. Some older models have a separate power connector. If this is the case, you can try connecting it to the mains via charging. Everything will work out if the current does not flow through the battery, but directly.
Via a high-power power adapter. If the first method does not work, or the device begins to work unstably, it is worth choosing a suitable adapter of higher power. However, you should act carefully so as not to overdo it with tension.
Through a cable of a different size. There is advice to replace the power supply cable with another one with a shorter length and larger cross-section.

The previous methods may work with older cell phones. They are also useful when connecting security systems that use such devices. With regard to modern smartphones, such methods are not applicable, since they have a different power circuit. By connecting the phone to an electrical outlet, computer or laptop, power is supplied first to the battery, and then from it to the phone. Therefore, you won’t be able to turn on a smartphone with a broken battery by connecting it to the network.

How to turn on a modern smartphone without a battery

To connect a modern model phone, you will need a power adapter with a rated voltage of 3.4-4.5 volts and a current of up to 2 Amperes with short circuit protection, a multimeter, two wires, special clips (alligator clips), or a soldering iron if you plan to use The phone is like this all the time.

Operating procedure:

Turn off the device and remove the battery.
Determine where the positive and negative contacts are located on the terminals of the smartphone. To do this, you can look at them on the battery (usually they are labeled) or measure them with a multimeter.
Observing the poles, connect the wires from the adapter to the smartphone contacts. This can be done by attaching clamps to the terminals or simply soldering them. The first method is suitable if you need to use the device once or twice. The second is if the device will be used constantly, for example in a security system.
Turn on the adapter and smartphone.

It is not allowed to leave bare wires, as this can lead to a short circuit and fire.

How to bypass protection from connecting your phone directly

However, if the smartphone uses a data exchange module with a power source that only works when in contact with the battery, this method will not work. In this case, disassembling the device and connecting an adapter that bypasses this chip will help.

You can also try to assemble a “fake” charging unit yourself – an adjustable resistor:

Take a case from an unnecessary battery with a pad for contacts.
Solder contacts onto the pads with the resistance required for this particular phone.
Connect the information terminals located between the two outer “working” ones through a resistance of 20 kOhm before the last contact to a cable with a negative charge.
Connect the wires from the power supply.
Turn on the device.

If this doesn't work, nothing will work. In this case, it is easier to buy a new battery. If you need it only for one time, but don’t want to spend money, you can search among your friends - someone will definitely have a suitable model.

Important! You should only connect the adapter bypassing the data exchange module with the power source if you understand electronics and know how to solder. Otherwise, there is a risk of permanently damaging the device.

What could be the consequences for the phone?

When trying to turn on a mobile device bypassing the battery, you need to be prepared for anything. In the case when the information stored on it is very necessary, then you need to ask yourself the question: are you willing to take risks? If not, then it is better to find the right battery and use it. In extreme cases, the device along with the battery can be sold as unnecessary.

If you are ready to experiment, regardless of the result, then you need to consider the following:

An old model phone, with a separate power input, powered directly from the network, may work unstably, intermittently, and at one point simply fail.
If the power and voltage of the supplied current do not match, the phone will fail, to the point that it will be impossible to repair it, which means it will also be impossible to retrieve the necessary information.
Incorrect actions can damage even a usable power adapter.
Without knowing how to solder and not understanding electronics, you can ruin the device, even if you do everything correctly and according to the diagram.
Without following safety precautions, you can cause harm to yourself - with a soldering iron or through exposed live wires.

So if you are unsure of your abilities, it is better to entrust the matter to a professional or someone who understands such equipment.

There is a possibility of a short circuit, which could result in the device catching fire.

For people versed in technology and electronics, almost nothing is impossible. Including connecting a phone without a battery will seem like a trifle to some. However, in any case, this is associated with a certain degree of risk - the risk of losing the device forever. Therefore, if a mobile device is very important, you need to think about whether the game is worth the candle.

Have you ever had the experience of turning on a mobile device without a battery? Tell us about it in the comments, how it was implemented, why and with what phone. This will help make the content on the site more interesting and complete.