Battery inspection

A battery inspection is carried out because the battery is the primary source of electricity on the vehicle when it is stationary and when starting the engine. Regular maintenance is important for correct and reliable operation. The battery should be inspected during each oil change, and especially in the fall before the arrival of the colder period when it is additionally loaded.

First, the age of the battery is checked by reading the date of manufacture and activation from the sticker.

Then the condition of the housing is inspected. Damage to the case leads to leakage of electrolytes and such a battery should be replaced.

Loose terminals and damaged poles on the battery create transient resistance and losses in the transmission of electricity. Make sure the outside of the case is dry and free of dirt. Dirt on the top of the case can cause the battery to self-discharge prematurely, as current “leaks” through the dirt. This mixture becomes conductive and drains the battery over time. Perform a leak test. If the battery or any of its associated parts are dirty or corroded, they should be removed and cleaned.

Battery inspection

Where possible, check the electrolyte level in the battery cells. If necessary, top up with distilled water. After topping up, it is necessary to charge the battery before further checking.

Before conducting any test, make sure the battery is fully charged. After charging, first, remove the surface charge by switching on the headlights with the engine off. Keep the lights on for at least 3 minutes. Inaccurate tests can lead to problems and expensive and unnecessary repairs.

Depending on the design of the battery, the charge level and capacity can be determined in several ways: specific gravity tests, visual inspection for batteries with a built-in hydrometer, open circuit voltage tests, and capacity tests.

To perform battery inspection, follow these steps:

Checking the battery’s age and appearance

Check the age by reading the date on the label. Inspect the casing for cracks, damage, dirt, and grease. Check for missing covers, holders, and heat shields.

Checking the poles, terminals, and cables

Check if there are loose posts on the battery and if they have oxidized. Check that there are no loose, corroded, or damaged terminals. Inspect all cables for damage to cable insulation.

Checking the electrolyte level

If possible, check the electrolyte level in all cells and top up if necessary. If distilled water is added, charge the accumulator before any further testing.