Nowadays, many devices are equipped with AA or AAA batteries, such as cameras, wireless mice and keyboards, and many others. Very often, chargers cannot show whether the battery is charging enough time, so you need to calculate the time required for charging yourself.
It is necessary
- - battery;
- - Charger.
Instructions
Step 1
Determine the battery charging time from the charger packaging, which always indicates the time for charging batteries of different capacities. But this time is almost always less than necessary. You can also find out the charging time by looking at the battery pack. For example, if you have an AAA GP 1000 battery, then it has a capacity of 970 mA / hour, the amount of time for charging is sixteen hours at a current value of 93 mA. But finding a charger that can provide just such a current is almost impossible.
Step 2
Take a charger, for example, GP Power Bank mini, read on it that it provides a current of 80 mA to charge AAA batteries. Then follow the link https://horisty.narod.ru/zaryad_akkumulyatorov.htm. Enter 970 in the first field, which is the capacity of the battery.
Step 3
In the second - 80, i.e. value of the charging current and as a result you will get the time it takes to charge the battery. In this example, it is 20 hours and 57 minutes. Although the packaging of the device says that the GP 1000 batteries should be charged within 15 hours. If you charge them during this time, they will only be charged 2/3.
Step 4
Calculate the charge duration yourself. To do this, take the value of the battery capacity in mA / h, for example, 3300. Next, turn the charger over, look at the value of the output current, for example, 150 mA. Divide the capacity value by the amperage to find out the charging time in hours. 3300/150 - as a result twenty two hours.
Step 5
Just keep in mind that this time can be as real as possible only if the current during charging is constant. As a rule, many chargers change the current during charging - at first, its value is minimal and gradually increases.
