Advice 1: How to check density of the battery

There are many different factors that prevent the factory car engine. One of them is the battery. But not all know about charging the battery can be judged by the density of the electrolyte. How do you determine this density?
How to check density of the battery
You will need
  • Kislotami, hydrometer,battery tester.
Instruction
1
Measurement of density of electrolyte of the battery must only be produced if since his charge was not less than 6 hours. First you need to Unscrew all of the plugs of the battery cells.
How to check density of the battery
2
Take a measuring device, which is called cyclotomic and drop it vertically holding in the battery cell. The device is a glass bulb within which is a float – hydrometer with scale graduations, and at the end of the device has a rubber "pear", serving for the selection of the electrolyte. With its help, dial the desired amount of acid, which allows the hydrometer to float freely. Look at the scale of the instrument, take readings. The electrolyte with high density float will float above. The unit of density is kilogram per cubic decimeter, liter.
How to check density of the battery
3
Compare our readings with the data from the table, previously calculated by experts. If the battery is operated in areas with normal climate conditions, its density should be not less than 1.24 kg per liter. The difference of measurements in the other battery cells is not more than 0.03 kilograms per liter. At low density, you must charge the battery.
How to check density of the battery
4
Upon receipt of a satisfactory testimony to tighten the plugs. You need to use native for your battery plugs that should have a gasket.
5
If the readings have not reached nominal values, replaceable battery.

After checking the density of the electrolyte battery test load on the test device. His testimony indicates the battery status.
Useful advice
Before the density measurement of the battery it is desirable to measure the electrolyte level.

Advice 2: How to check the charge of the car battery

Many motorists, especially with little experience, are faced with the problem starting car after long Parking, and also with the onset of the first frost. In most cases, after several unsuccessful attempts to start the engine of the machine begins the search for the cause, which often lies in the lack of proper control over the condition of your battery. If the vehicle is not used for a long time, or exploited it in the winter, and even in urban areas, when you have to stand in long traffic jams-enabled devices, the probability of a dead battery high.
How to check the charge of the car battery
Instruction
1
Disconnect the battery from the onboard network of the car and measure the voltage on the battery with a voltmeter. It is advisable to do it immediately, but a few hours after engine stop and in a warm room, otherwise you'll have to make a correction for the temperature of the electrolyte. The degree of charge of the battery can be determined from the tables in reference books. If these data are not at hand, we focus on approximate numbers is 12.2 volts means 50% of the discharge; 11,6 volts – 100% charge.
2
Measure the electrolyte density with a hydrometer (densimeter), if you have a serviceable battery. Have a fully charged device parameters must be 1.28 -1.29 GSM?, in the summer, 1.26-1.27 DBS?, at discharge 50% -1.20 GSM?, have fully discharged - 1.10. Owners of modern maintenance-free batteries are exempt from this procedure.
3
Undercharge the battery with the charger. If the voltage is less than 12.6 V and the density of electrolyte is below 1.24 fuel. cube, after bringing to normal the level and density of electrolyte.
4
Check the voltage on the battery with the engine running at 1500-2000 rpm obmin and turned on the high beam headlights. A voltage of 13.9 volts to 14.3 volts suggests that the charging system is working optimally, and the deviations in the or down allow to conclude that insufficient charge or overcharge. And then, and more harmful to the battery and reduces its life. The undercharge may be due to the weak tension of the alternator belt.
5
Take it a rule to recharge the battery after a long pause in the use of the car (in the summer more than 3 weeks in the winter more than 10 days). Remember that an activated alarm also leads to a gradual battery drain.
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