Recent laptop batteries contain lithium polymer and lithium ion cells, which reduce the weight of the battery and increase the power density per unit weight. The disadvantage of these batteries is that they age regardless of the level of use. Already after a year of service, the capacity of the battery decreases, since the service life of such batteries is, in principle, designed for 200-300 charge-discharge cycles. Therefore, after a short period of time, laptop owners are faced with the problem of battery recovery.
Instructions
Step 1
You can restore your Asus laptop battery or HP laptop battery yourself. To do this, prepare a tester or multimeter, a soldering iron (no more than 40 W), car bulbs, a breadboard knife and superglue. First, disassemble the battery by locating the seam between the two halves of the battery and using a breadboard knife, try to carefully separate them. This is not so easy to do, since the halves are firmly glued together, but it is still possible.
Step 2
Then make sure the battery is completely discharged. To do this, connect car bulbs to it and check the voltage with a multimeter. If the lights are on and the total voltage is equal to the number of elements multiplied by 3, 7 (or more), then you can proceed to repair. If it is less, then check each individual battery cell in the same way and replace the faulty ones.
Step 3
Next, discharge the remaining cells, as well as the new ones that you will install in the battery. To do this, use the same car bulbs and achieve a voltage of 3.2 V on each element. This is done so that in the future the controller will start charging the battery from scratch. Then there will be no problems with determining the battery charge level.
Step 4
If the battery is not used, another malfunction may occur - the battery does not charge, while the voltage at its contacts is 0. Such a malfunction is quite simple to eliminate. Connect your laptop's power supply to the daisy chain of cells through a 5W bulb and wait until the battery voltage across each cell is 3.4V.
Step 5
After completing the recovery procedure, start assembling the battery. Here you will need cyanoacrylate glue to glue the two halves of the battery back together. After the glue has dried, insert the battery back into the laptop and charge it.
Follow the guidelines for using your laptop battery to keep it productive.
