How to Charge a Phone Battery Without Charging

Phone battery charging options without a charger. Charging the battery from a computer or laptop

The first thing that comes to mind in the absence of a charger is to charge the phone’s battery from the USB port of a desktop computer or laptop. Yes, indeed, this is the easiest and most affordable option. After all, the USB adapter ─ mini or micro USB you probably will find. Most often, such adapters come with the phone.

The plus here is the process safety. When charging the phone’s battery from a computer or laptop, you won’t damage it. A current of up to 2 amperes is supplied from a standard network charger and, of course, in this case the process goes much faster.

Charge the phone battery in the car

This option is quite common, since many today have cars. A modern person spends a lot of time on the way to work and back home. It’s a sin not to use this time to charge the phone. In the car, the charger for the phone will replace the adapter from the cigarette lighter to USB, which will allow you to charge the battery.

Charge the phone battery in the car

Adapter for charging a phone in a car

Charging the phone battery from an external power bank

If you are often on business trips or tourist trains, then a power bank is a must. It will help to charge the battery, including when there is no charger from the phone at hand.

Charging the phone battery from an external power bank

If you still have a tablet, then such an external battery is simply irreplaceable. Modern devices are very voracious in terms of electricity and can not last until the end of the working day with active use. Therefore, even when you buy a regular network charge, an external power bank will not be idle with you.

We also recommend that you read about how the first charge of the smartphone battery is done.

Charging the phone’s battery directly with a frog

Frog. this name is popularly known as universal chargers that allow you to charge the battery directly without a phone.

Charging the phone’s battery directly with a frog

The charger received its name for its characteristic appearance. This charge has a clip, two adjustable width contacts and several indicators. “Frog” allows you to charge many different batteries, regardless of whether they belong to a particular gadget.

In general, it is conveniently fast and versatile.

DIY battery charger

If suddenly you can’t realize all the other options, you can make charging for the phone’s battery with your own hands from improvised means. So you can charge the battery in the absence of other options.

• Power adapter 6–12 volts (router, microdrill, etc.);
• Two copper wires;
• Resistor;
• Insulating tape, plastic ties.

DIY battery charger

The network has a number of recommendations for the manufacture of such home-made devices. For this, the authors take the adapter, cut off the plug from it and strip the wires, which are then connected to the battery contacts. I see no reason for such vandalism. After all, the adapter is needed for use with your own device. over, “” and “-” can be taken using two wires.

DIY battery charger

• Strip two pieces of copper wire from both ends;
• Insert one into the plug and fix with electrical tape. This is a plus;
• The second tape with tape to the outer surface. This is a minus;
• The remaining ends are connected to the battery pads in polarity. To do this, you can use plastic ties or electrical tape.

DIY battery charger

The third contact is the temperature sensor. You do not need him.

To limit the charging current supplied to the battery, a resistor can be placed in the gap of the positive wire. Its resistance is calculated according to Ohm’s law:

U is the rated voltage of the power adapter in volts,

I is the required current. It is better to limit it to 1 amp. To speed up the process, you can raise up to two.

The power of the resistor should be 0.5 watts or more. During charging, check the temperature of the battery by touch. If it is very hot, stop charging and let it cool. The voltage at the terminals of the phone’s battery can be controlled with a multimeter.

We advise you to read an article on what to do if the phone’s battery is swollen.