# Advice 1: How to raise the electrolyte density

The density of the electrolyte decreases when the battery is discharged, where he poured. To raise density, try charging the battery to a boil in banks. If the density of the electrolyte is not up to the desired rate, release the place and dilute sulfuric acid.
You will need
• hydrometer, sulfuric acid or a concentrated electrolyte, the charger.
Instruction
1
Raising the density of the electrolyte without topping up kislotoupornymi a symptom of the fall of the density of the electrolyte is discharging. To determine the density use the hydrometer. To do this with it, pull a certain amount of the electrolyte and on the pop-up floats, determine its density. It should be of 1.27 g/cm3, in the winter it may be a bit higher. If the density of the electrolyte is less than normal, connect the battery to the charger and charge it until until the electrolyte in the banks do not boil. Then drain it using the bulb, during this time, measure the discharge current and its time. Multiplying these values, find out the capacity of the battery and compare it with the passport. If it is more than 30% less, then reloading will not help. Otherwise, charge the battery pack again and measure the density of the electrolyte. It should be OK.
2
Raising the density of electrolyte by adding kisloty if the first method didn't help, and the density of the electrolyte is less than 1,27 g/cm3 dilute acid. To do this, a hydrometer, pull a certain amount of the electrolyte and pour the sulfuric acid. Note that it has a density of 1.83 g/cm3, and it is very corrosive. Car shops for sale the concentrate of the electrolyte density of 1.4 g/cm3, it is more secure, so better use it. Add the concentrate, while the density does not increase to the desired value. After that, check the battery charging with a small current (not more than 2 (A) for half an hour. During this time the electrolyte is fully mixed. Again check the density in all banks. It should be the same and conform to the standards. If the density is still low, repeat the operation again.
3
Observe special caution when working with sulfuric acid. Avoid its contact with skin or clothing. If this occurs, wash out electrolyte with plenty of water and treat the place with a solution of soda, which neutralizes acid. When pulling the solution in any case, do not invert the battery, because the slime from the plates can short-circuit the battery, and it will deteriorate.

# Advice 2: How to increase the density of the electrolyte

If the car starter barely turns, it is necessary to check the density of electrolyte in the battery. For this rather special hydrometer. If the density of the electrolyte is insufficient, it is necessary to take a number of measures for the resuscitation of the battery is to recharge it and increase the density of the electrolyte.
You will need
• the autotester or multimeter, battery charger, fresh electrolyte
Instruction
1
Recharge and reinstall the battery. Across the terminals of battery connect the autotester, is included in the voltmeter. The shape arrow should be in the yellow zone. The multimeter should show a voltage of 11.9 to 12.5 volts.
2
Start the engine, print it revs to about 2.5 thousand. min. Measure the voltage at the battery terminals. When checking the shape using a voltmeter, the arrow should be in the green sector. The multimeter should show a voltage of 13.9 to 14.4 Volts. If the voltage is not changed, hence, there is no charging current and the car is in need of repair, and the battery is charging. Charge the battery with current (in Amperes) 10 times less battery capacity (Ampere*hour) for 10 hours. The next 2 hours charging produce current (in Amperes), smaller than the battery capacity (Ampere*hour) 20 times. For example, when the battery capacity is 60 amp*hours in the first charge current equal to 6 amperes, the second is 3 amps. (The second mode is the equalization is used to equalize the density of electrolyte in all banks of batteries).
Charge the battery until the start of intensive gas release in all banks.
3
If testing on the vehicle with the engine running the voltage at the terminals of the battery is raised above 14.4 V volts, then the relay controller of the car is faulty and in need of repair, and the electrolyte in the battery is constantly much boiled away. So in such cases, the electrolyte literally spills and add to the batteries to equalize the level of the electrolyte only distilled water, nothing surprising in the low density of the electrolyte no. In this case, fully charge the battery and align the density of the electrolyte in the banks, collecting old and weak electrolyte and adding fresh. Do this operation only on a fully charged battery, check the voltage at the terminals, which is switched off and disconnected the charger should be 12.7 Volts.
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