An electrolyte is a liquid that conducts electricity. For example, in our study of plant vehicle electrics, we come across lead/acid batteries. The electrolyte in these batteries is a dilute sulphuric acid, H2SO4. The relative density of this acid is about 1.1 in a discharged battery and up to 1.28 in a fully charged battery.

Even though the electrolyte in batteries is a weak acid, it will still cause discomfort if it gets on your skin (especially if you have small cuts and scrapes).
Also, the electrolyte is dangerous if it gets in your eyes. If it does, flush immediately with copious amounts of water.
Be careful when handling battery acid in or around vehicles and components, as it can cause damage to components such as wiring harnesses and electronic control boxes. The acid can also damage paintwork.
When you began the course, you were issued with safety glasses. There are acid proof gloves and aprons available in the workshops. Make use of all these things when you work with batteries and battery acid.

It is extremely important, during routine battery maintenance, to check the electrolyte level of a flooded battery.

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