Specific Gravity Test of Battery

This video explains the specific gravity test of battery. It describes the correct procedure for calculating accurate value of specific gravity. This video also explains the proper method of adjusting specific gravity of electrolyte used in batteries. Similarly, it explains the importance of Specific gravity test in lead acid batteries used in high voltage grid stations.

[@bignedau]

Very well done. Appreciate the effort.

[@ngaihapekambueza4225]

Thanks for the detail information.

[@hassansyed5661]

Acid volume ex-pands when it is heated and shrinks when it is cooled. When expanded, due to heat, it will not be as dense and will not raise the hydrometer float as high in the acid, and this will cause the reading to be low. When the acid is cooled, the acid shrinks in volume and becomes denser, which causes the hydrometer to rise
higher and read too high.

[@theengineeringpower4213]

Thanks for useful information.

[@JaykeSapalaran-iq3qs]

Great video information 👍❤ Thank you for sharing your knowledge ♥️🇵🇭🫡

[@jamalhassan3810]

informative ..

[@warwar4876]

Thanks a lot for your sharing Sir.

[@davidomowawa4629]

Thanks for the video, it was on point.
My question is What could be the possible reason that makes the lead acid battery bank warn, like increase in temperature?

[@markmwangi2449]

There are several possible reasons why a lead-acid battery bank may become warm or increase in temperature, including:
Overcharging: When a battery bank is overcharged, it can cause the electrolyte to heat up and the battery to become warm. This can occur if the charging voltage is set too high or if the charging current is too high.
Undercharging: When a battery bank is not fully charged, it can cause the battery to become warm as a result of a chemical reaction that occurs within the battery. This can occur if the charging voltage is set too low or if the charging current is too low.
High ambient temperature: If the ambient temperature is high, it can cause the battery to become warm even if it is not being charged. This is because high temperatures can increase the internal resistance of the battery, causing it to generate more heat.
High discharge rate: When a battery bank is discharged at a high rate, it can cause the battery to become warm as a result of the chemical reactions that occur within the battery. This can occur if the load connected to the battery bank is too high.
Internal short circuit: If there is an internal short circuit within the battery bank, it can cause the battery to become warm as a result of the current flow through the short circuit.
It is important to note that a certain amount of heat generation in a lead-acid battery bank is normal during charging and discharging, but excessive heat generation can indicate a problem with the battery bank or the charging system. If a battery bank becomes excessively warm, it is important to investigate the cause and take appropriate action to prevent damage to the battery bank or the charging system.

[@baheeramagezi2430]

Thanks for the lecture
My question is
What's the best measure of acid in the distilled water for the solar battery use. If I use the hydrometer, what measure should I get for the best working condition of the battery. Thank you!

[@lucasianii8178]

Hi Sir, thanks for the video,
My question is why they don't take specific gravity on nicad cadmium batteries

[@sagarmudunuri1958]

well explained

[@EricPham-ui6bt]

Is it 1.25 for good electrolyte and jet fuel Jp4 is 0.87 -0.89 and purity of water test in case should battery blanket and cooler to keep perfect operations temperatures for p8 is important and seaplane too

[@franksimau]

Is it proper to add acid on a old battery which is giving 1180 SG value in red indication

[@benoitntakondagize-ew9mx]

How can I revive my battery when I was used bad acid

[@atifayaz6554]

Where should be the water on the meter for 1250 gravity

[@sanjaypatil2532]

Content looks like that of a theory book :)) What is the need for testing Absolute value ? When do we add acid or distilled water or charge ? Using regular water as u have shown will harm the battery ?
Absolute 0 value in the practical world !

[@theengineeringpower4213]

This is the Proper method and being followed at high voltage grid stations. In this video, the correct method of interpreting specific gravity w.r.t temperature is explained and nothing to do with absolute 0 value. Kindly interpret the video in proper context. Hopefully your point has been cleared. Thanks

[@sanjaypatil2532]

@@theengineeringpower4213 yes it wasn't "absolute" i meant to say "specific". The point i was making is that with variation of temp there is such a small variation, with little practical impact. Also Freezing Point does NOT increase/decrease rather it is lowered or raised. Also no one should be mixing acids in food-bowls as u hv shown, instead in a deep plastic mug or glass jar with spout to avoid spillage and burns. Nomenclature and Images are important.
I also understand that the sp gravity drops as the electrolyte gets discharged. The question is when to acid and when to charge ?

[@theengineeringpower4213]

@@sanjaypatil2532 The bowl was just for representation. Indeed its a jar type in practical. The electrolyte is added to adjust specific gravity value if it is out of range as checked from time to time. Battery is put on boost charge when required as shown at end of video. Thanks for your valuable comments. appreciated.

[@EricPham-ui6bt]

We had our own ac but why not battery

[@allpakistansignalstaffasso8803]

What is the correct specific gravity of 250ah 1.2V Ni_cd cell ?

[@OmniBaddie]

You arent supposed to measure specific gravity of a NiCad cell. It can also damage the hydrometer

[@bobonestone1807]

What happens if you specific gravity is too high

[@gilbertwahlang8029]

Then the high sulphuric concentration will eat up the plates in due time.

[@soumitramakar9247]

🥰😍😍