All portable devices are currently equipped with special batteries that act as a power source and require charging after a certain period of time. As a result of improper or long-term use, batteries can lose their energy reserve, which reduces the time of their use. In this regard, it is necessary from time to time to carry out operations to revive them.
Instructions
Step 1
Remove the battery from your portable device. Find any load that needs to be connected in parallel to the battery. For example, you can use car bulbs. After that, a voltmeter is also connected in parallel.
Step 2
Observe the meter reading. It is necessary that the battery is discharged to 1V. If the voltage drops below 0.9V, then the battery may break down, after which it will be difficult to revive it. It is also very important to measure the temperature of the device. If it rises to 50 degrees, then it is necessary to turn off the load until it cools down, and then continue discharging.
Step 3
Leave the battery for 10-15 minutes after discharging. This is necessary for normalization of processes in the device element. Connect the battery to a power source and take readings with a voltmeter and ammeter. In this case, the power is connected with one contact to the positive of the battery, and the second to the free contact of the ammeter.
Step 4
Be sure to attach a thermal relay or thermal sensor to the device, which is attached with thermal paste for more accurate readings. These parts can be purchased from any radio market.
Step 5
Set the voltage regulator to the minimum position on the power supply. In this case, it is necessary to familiarize yourself with the instructions for the revived battery in advance and determine its capacity. Start increasing the voltage and watch the ammeter reading. Stop after the amperage reaches a tenth of the device's capacity.
Step 6
Start increasing the voltage step by step. During the first hour, change the position of the regulator every five minutes, and thereafter - every hour. In this case, it is necessary to monitor the readings of the voltmeter and ammeter. When the voltage reaches 1.5V, stop changing it. Then charge the battery for 4-6 hours until the amperage reaches zero. Disconnect the battery from the power source. Repeat the operation after a few days.
