What should be checked during the visual inspection of the battery?

Check the battery case for cracks or bends, check the battery terminals for damage, and verify the difference between the max. and min. electrolyte levels in cells is within 10 mm (0.39 in). If it fails, replace the battery.

What charging method is used if the specific gravity is below 1.100?

Slow charge (refer to "A: Slow Charge"), followed by a capacity test per Chart II. If O.K., the battery is ready for use; if N.G., replace the battery.

When is a standard charge recommended over a quick charge?

"STANDARD CHARGE" is recommended in case the vehicle is in storage after charging (applies when specific gravity is between 1.100 and 1.220).

What is the maximum battery temperature during charging?

If battery temperature rises above 60°C (140°F), stop charging. Always charge the battery when its temperature is below 60°C (140°F).

How long is the quick charge if the battery fails the capacity test with specific gravity above 1.220?

Quick charge (refer to "C: Quick Charge") with a time required of 45 minutes, followed by another capacity test per Chart II.

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Nissan Micra Battery Test & Charging Chart (Chart I) - Service Manual EL-10

Battery test and charging flowchart with inspection and charge-decision steps

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M.F. battery test and charging flowchart guiding visual inspection, specific-gravity check, and charge/capacity decisions.

AI caption February 2006 · Photo 356 of 412

This page is from a Nissan service manual (page EL-10, Electrical section) covering the battery. It presents "Chart I" of the M.F. (maintenance-free) Battery Test and Charging Chart, a flowchart guiding technicians through battery diagnosis. The procedure starts with a visual inspection: checking the battery case for cracks or bends, checking terminals for damage, and verifying the difference between maximum and minimum electrolyte levels in cells is within 10 mm (0.39 in). A failed inspection means replacing the battery. If OK, specific gravity is checked and the result routes to one of three paths: below 1.100 requires a slow charge; 1.100–1.220 calls for a standard charge (recommended if the vehicle will be stored) or quick charge; above 1.220 leads directly to a capacity test. Each path ends with a capacity test (per "Chart II") that determines whether the battery is ready for use or should be replaced. Additional notes include a 45-minute quick charge time requirement for batteries that pass specific gravity but fail the capacity test, and a warning to stop charging if battery temperature rises above 60°C (140°F).

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Frequently asked questions

What should be checked during the visual inspection of the battery?: Check the battery case for cracks or bends, check the battery terminals for damage, and verify the difference between the max. and min. electrolyte levels in cells is within 10 mm (0.39 in). If it fails, replace the battery.
What charging method is used if the specific gravity is below 1.100?: Slow charge (refer to "A: Slow Charge"), followed by a capacity test per Chart II. If O.K., the battery is ready for use; if N.G., replace the battery.
When is a standard charge recommended over a quick charge?: "STANDARD CHARGE" is recommended in case the vehicle is in storage after charging (applies when specific gravity is between 1.100 and 1.220).
What is the maximum battery temperature during charging?: If battery temperature rises above 60°C (140°F), stop charging. Always charge the battery when its temperature is below 60°C (140°F).
How long is the quick charge if the battery fails the capacity test with specific gravity above 1.220?: Quick charge (refer to "C: Quick Charge") with a time required of 45 minutes, followed by another capacity test per Chart II.