There are many solutions to enable excessive battery discharge, but not all of them are suitable. So we need to think about it.
Activated by high resistance instantaneous short circuit. Select a resistor to directly short the positive and negative terminals of the battery. The process lasts from 0.5 seconds to 1 second.
Small current to replenish power. Use a small current charger to charge for a while, then use the original charger to charge when the voltage returns to normal.
Freezing method. Remove the battery, wrap it in protective film and put it in the refrigerator for 10 minutes, then remove it and let it heat up naturally before charging. (This method is more suitable for bulging lithium batteries.)
You can use a battery-activated instrument to do this.
Excessive discharge of the bbattery will cause irreversible damage to the battery, so it cannot be repaired. Simply replace the battery with the same model.
Battery maintenance methods:
1. Use it fully charged every time to reduce the number of charging times and increase battery life.
2. It is not necessary to completely discharge the battery. It should generally be charged when the battery level is below 10%.
3. Do not use your cell phone while it is charging.
4. Don't overload. Stop charging once the battery is fully charged.
Lithium iron phosphate battery is a lithium ion battery that uses lithium iron phosphate (LiFePO4) as the positive electrode material and carbon as the negative electrode material. The rated cell voltage is 3.2V. The charging cut-off voltage is 3.6V~3.65V.
During the charging process, some lithium ions contained in the lithium iron phosphate are released, transferred to the negative electrode through the electrolyte, and embedded in the carbon material of the negative electrode at the same time, electrons are released ; The positive electrode and reaches the negative electrode of the external circuit to maintain the balance of the chemical reaction. During the discharge process, lithium ions are released from the negative electrode and reach the positive electrode via the electrolyte. At the same time, the negative electrode releases electrons and reaches the positive electrode of the external circuit to provide energy to the outside world. ?
Lithium iron phosphate batteries have the advantages of high operating voltage, high energy density, long life, good safety performance, low self-discharge rate and the absence of memory effect.