How to Charge a Battery Without a Charger

Thứ bảy - 27/04/2024 01:08
Have you ever had a dead battery in your camera at just the moment when you need them most? Worse still is a dead cell in an emergency situation. And you can't always carry a charger with you. For those who like to (or need to) improvise,...
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Have you ever had a dead battery in your camera at just the moment when you need them most? Worse still is a dead cell in an emergency situation. And you can't always carry a charger with you. For those who like to (or need to) improvise, these recommendations may prove useful.

Method 1
Method 1 of 2:

Using a Battery to Charge a Battery

  1. Step 1 Remove the battery from the device.
    You will need access to the connection points on the battery. Keep in mind that the battery is not intended to be accessed on certain models of cell phone, so know what can be done with the model you have. On most (but not all) Android and Windows phones the back can be removed with the appropriate amount of pressure in just the right spot. Do not attempt this with most Apple products.
  2. Watermark wikiHow to Charge a Battery Without a Charger
    These wires may get hot (though most likely they will not if you are doing it properly). It will also take quite a long time to transfer the charge. You don't want to be holding them the whole time.
    • If you are using AA and AAA batteries; you may want to connect them to each other "in serie" before attaching them to the battery requiring a charge. This means using wire to connect the negative side of all the small batteries to the negative connector on the battery that needs a charge, and the same for the positive side.[2]
  3. Watermark wikiHow to Charge a Battery Without a Charger
    Keep in mind that it probably won't be fully charged, but you should have at least some use of the device that you needed.
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Method 2
Method 2 of 2:

Using the Rubbing Trick

  1. Watermark wikiHow to Charge a Battery Without a Charger
    Hold it in your hands.
  2. Watermark wikiHow to Charge a Battery Without a Charger
    Continue to do this for 30 seconds to several minutes.
    • Note: Your battery is not being recharged. Some internet commentators have suggested the rubbing the battery provides it with additional charge, perhaps from built up static electricity.[3] [4] This interpretation is entirely incorrect.
    • Lithium ion cells, like all genuine batteries, release electricity as a consequence of chemical reactions. As predicted by the Arrhenius equation, these reactions become more powerful as temperatures increase.[5] Essentially, you are improving the conductivity of the battery by raising its temperature.
  3. Watermark wikiHow to Charge a Battery Without a Charger
    You may only have a few moments of battery life, so make the most of them.
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Warnings

  • Do not overcharge the batteries. Lithium batteries are potentially explosive if overcharged.
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  • You must only attempt to charge rechargeable batteries. Do not ever attempt to do so with alkaline batteries or others intended for only limited use.
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  • Be sure to turn off the electronic device before removing the battery or you could alter the device settings.
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