How do I charge the batteries at home?

Despite the fact that we are all used to counting finger batteries as disposable batteries, at least once the question occurred to us whether it is possible to charge batteries. He is especially relevant in unforeseen situations, when we urgently need it, but sat down at the most inopportune moment. So, it turns out, you can bring life back into a battery if you know some secrets.

How do I properly charge the batteries?

The main thing that you should know: charging conventional batteries, you run the risk that they explode. Never salt the batteries. But alkaline (alkaline) - you can try.

Here are a few ways to charge batteries at home:

  1. Through the power supply. We connect it to the network and connect the wires by connecting the battery, observing the polarity. It is important not to allow the battery to be heated above 40-50 degrees. After that, turn off the power supply and let the battery cool down. When it becomes warm, reconnect the power supply unit to the electricity for about 2 minutes, then put the battery in the freezer for 10 minutes. Use it can be after 2-3 minutes after removal from the cold. Charged in this way, the battery can serve for some time.
  2. The method of heating. You can put the batteries for 20 seconds in hot water. It is no longer possible, since this will lead to a complete failure of the battery.
  3. Reduce the volume of the element. All of us at least once in my life desperately bitten and beat the battery on the ground, than they returned part of the charge to it.

How do I charge rechargeable batteries?

It is quite another matter to charge batteries that are intended for reusable use. And for a long and successful operation, you need to get a quality charger, which will automatically stop the supply of current when the full charge comes.

If the charger is not equipped with an indication function, you need to calculate for yourself how long to charge the batteries. This is calculated using the formula: time = Y (mA * h) / Z (mA) * 1.4. Where 1,4 is the coefficient that is used in connection with the fact that not all of the current passes into the charge of the battery, but some of it comes out in the form of heat.

For example, consider how much you need to recharge batteries with a capacity of 2400mAh and a charging current of 150mA. 2400/150 * 1.4 = 22.4 hours.