There are a lot of reasons for the "death" of the battery, it can be sulphated plates, being in severe frost, and much more. To "reanimate" the battery, you need to carry out a series of actions that will help restore its performance.
Necessary
- - electrolyte;
- - additive;
- - distilled water;
- - Charger.
Instructions
Step 1
Refill with fresh electrolyte. Its density should be 1.28 g / cc. Add additive. For the required amount, see the instructions for the battery.
Step 2
Leave the battery for 48 hours, this is necessary so that the electrolyte squeezes out excess air and the additive dissolves well. If after that there is not enough liquid volume, then add electrolyte to the recommended level. Batteries usually have a mark to which the electrolyte should be poured.
Step 3
Connect the charger and run a charge-discharge cycle. This is necessary to restore the capacity of the battery, you cannot charge immediately. After a kind of "resuscitation", turn on the device in the "charging" mode. Include a current of about 0.1 A, remember to monitor the voltage at the terminals. Be careful not to allow heating or boiling of the electrolyte, if this happens, reduce the current. Charge until the current at the terminals reaches 2, 3 - 2, 4 V for each of the sections.
Step 4
Halve the charging current and leave the battery for another 2 hours. During this time, the density of the electrolyte and the current should remain unchanged. If, after pumping the battery, there is a little lack of fluid, add electrolyte or ordinary distilled water.
Step 5
Discharge the battery with a regular light bulb. Repeat the whole cycle of work with the battery from the beginning. It needs to be pumped well. If it discharges very quickly, try adding some more additive. This method of restoring capacity and performance will help to extend the life of the battery for many years.
Step 6
If during charging the electrolyte hopelessly boils, you can safely throw out the battery, nothing will help it. The same can be done with a frozen device, when even visually one can notice "swollen" sides.
