How to Charge a Battery Without a Charger

Has your camera ever run out of battery when you needed it most? It's annoying when electronic devices run out of battery in an emergency situation because we don't always have a charger with us. For those who like (or need to) improvise, the following tips can be extremely useful.

Use battery charger for battery

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Remove the battery from the device. You will need to manipulate the battery contacts. Some phones use non-removable batteries, so you need to know your phone well. For most (but not all) Android and Windows phones, the back cover can be removed when you apply moderate pressure in the right position. However, you should not try this with Apple products.

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Find some AA, AAA, or 9V batteries. Unlike the electricity transmitted from a wall outlet (alternating current), the energy in common household batteries is the same as the batteries used in cell phones or digital cameras.

You may be surprised why you have to use one battery to charge another battery. You might also have expected that we would introduce some magical secret to charging your battery without having to find an alternative energy source. In fact, that is impossible. One of the fundamental principles of Physics (law of conservation of energy/law of conservation of mass) clearly states that everything has its own value. Learn to accept this.

We also recommend that you charge the battery instead of trying to ignite your electronic device and use replacement batteries directly. Using inappropriate current or voltage can potentially damage the complex circuit structure inside the device, so clearly these options are not worth the risk.

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Determine the positive and negative poles of each battery. For AA batteries and other household batteries, each end will be marked. With most phone batteries, the anode is the one closest to the edge, while the cathode is usually the furthest from the edge (if there are three to four connectors, one or two in the middle are usually used to regulate temperature). and other functions).

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The voltage of the power battery (AA, AAA or other types with enough power to supply) must match the battery to be charged. Nowadays, typical phone batteries require a direct current of over 3.7V to charge. So multiple AA or AAA batteries or one 9V battery would be ideal as a power battery. Remember that each regular AA or AAA battery that we still use in the home provides 1.5V of power. In short, if you only have AA or AAA batteries on hand and you need a power source above 3.7V, connect 3 small batteries in series together (1.5V + 1.5V + 1.5V = 4.5V).

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Prepare two electric wires. It is best if the wire is covered with insulating plastic but leaves the ends exposed.

Tape or clamp the wire connecting the power battery to the battery to be charged. The power cord can get hot (but only if you do it incorrectly). This process takes quite a while, so you don't have to keep them on all the time.

If using AA and AAA batteries; You need to "connect" the power batteries in parallel with the batteries that need to be charged. This means that we will use electric wire to connect the negative pole of all small batteries to the negative pole of the battery that needs to be charged, the same goes for the positive pole.

After a while, the battery will be charged. You should remember that the battery is only relatively charged enough for you to 'put out a fire' and cannot be fully charged.

Use the rubbing tip

Remove the battery from the electronic device and hold it in the palm of your hand.

Use both hands to rub the battery vigorously to create enough friction to generate heat. Continue doing this for 30 seconds to a few minutes.

Note: Your battery is not actually recharged. Some online suggestions suggest that rubbing the battery will give it additional charge, possibly from built-up static electricity. In fact, this understanding is completely incorrect.

Li-ion batteries, like other pure batteries, release energy through chemical reactions. According to the Arrhenius equation, these reactions will become stronger as the temperature increases. Essentially, you're promoting the battery's conductivity by heating it up.

Insert the battery back into the electronic device. Battery life is very limited at this time, so you should take advantage of it.