Contents
- 1 Effective calculator online
- 2 And how much do I need to charge the batteries after purchase?
How long does it take to charge a phone, laptop or other equipment that uses rechargeable batteries? You want to know, but this can be calculated very quickly and simply by an online calculator How much battery should be charged in time Battery capacity is measured in milliamperes per hour, its manufacturers write on the case of the product, and on the charger the data on the current generation according to this device. a).If you divide the capacitance into a charging current, you get the time in hours. But this is not a final result, because you need to take into account the efficiency of the device, that is, multiply the result of division by 1.4.
Calculation of battery charging will be as follows: T = 1.4 C / I.There are indicators of charging time, capacity and current of the charger. In practice, this data may vary by the order of 20, since the charging time of the batteries depends on the quality of the products, the correct formatting and the ambient temperature.
The easiest way is to use the device with automatic control, but in this case there may be a charge by slow current, so do not leave the battery on the charger after a full charge.
Each similar product has its own lifetime, which is determined by the number of recharge cycles. This value depends on the battery type. Therefore, if the device is constantly underloaded, then it is possible to significantly shorten the operating time of the product. To keep it intact and use for a long time it is necessary to make the correct calculation of the battery charging time
Effective calculator online
| Battery capacity mAh | |
| Battery charger current mAh | |
| Charging time | ( hour) |
Concerned about how many hours to chargebatteries, there is a logical and simple answer. Thanks to a simple formula for calculating the result, you can obtain the necessary data in a few seconds. To do this, enter into the table the parameters of the battery capacity and the current of the charger. Click the "Calculate" button and accept the ready answer.
Attention: the obtained value must be multiplied by a factor greater than 1, because some of the energy passes into heat and is lost, especially at a temperature below zero. When calculating the battery charge time from nickel, the percentage ratio of 1.4 is suitable.
The battery discharge voltage should not be less than 0.9V, regardless of the discharge current. In most devices, the threshold value is determined automatically.
Charge can be interrupted, but the total value must not be less than the calculated value. During the charge, the body of the device can be heated, the limiting temperature is 55 degrees. In this case, the device switches from the main charge mode to the charging mode. The temperature decreases and the process is updated.
And how much do I need to charge the batteries after purchase?
When you buy a new device, charging is done halfway, and therefore the first three times you need to completely discharge the device until it is completely turned off, and then charge at full capacity about 12 hours, following the manufacturer's enclosed instructions. Completely the battery is charged for 3 4 hours, and in the subsequent time it is recharging by a slow current to the full limit. After three full-cycle recharging the device enters operating mode, and there is no need to wait for its full discharge or charge.
Online calculation of battery charging time on our website will help very quickly to obtain the necessary result, which will prompt each user how much to charge the batteries, so that they function smoothly for a long time.
