At SIT, batteries & chargers inspections are essential for ensuring the longevity and effective operation of electrical systems, particularly in industrial & commercial hardware.
Visual Inspection of Batteries & Chargers
> Make sure the battery is properly placed and that the bracket is not damaged or corroded.
> Check the battery box (also known as the battery case) for fractures, distortion, or damage.
> Check that the battery guard cover is intact and appropriately covering the battery.
> Ensure that the poles are in good shape, with no excessive wear or corrosion.
> Make sure the ventilation holes are clear and the battery vent caps are in place to allow adequate gas release.
> For non-sealed batteries, make sure the electrolyte levels are within the acceptable range.
> Check for apparent damage or warping in the batterys interior cells.
> Check for evidence of corrosion, damage, or poor connections.
> Check that both the positive & negative cables are in good shape, firmly attached, and free of wear and corrosion.
Technical Inspection of Batteries & Chargers
> Specific Gravity of Electrolytes (Hydrometer Test): Using a hydrometer, determine the specific gravity of the electrolyte. The typical acceptable range .
> Emergency Stop Verify emergency stop button immediately cuts power.
> Cable & Assembly Inspect charging cable for cracks, wear, or damage.
> Alternator Voltage Test (Engine operating): Check the voltage output of the alternator when the engine is operating.
> Battery Voltage Test(Unloaded, Engine Running): Measure the battery voltage while the engine is running and there is no load applied.
> Battery Voltage Test (Fully Loaded, Engine Running): When the engine is fully loaded
> Battery Voltage Test(Engine Off): Measure the battery voltage while the engine is turned off. The overall battery voltage should be approximately X to X
> Discurrent or Case Drain Check: Check for discurrent or case drains using a multimeter with a X mA setting. The reading should be less than X mA.
> Battery Load Test: Perform a load test by providing a X A load for 10-15 seconds. The voltage per battery should not fall below X V DC.
> Open/Short Circuit Check: Make sure the battery system has no open or short circuits.
Actionable Recommendations
> Battery Recharging Test
> Temperature Performance Check capacity & operation in high/low temperatures (e.g., -10°C capacity check).
> Leakage Current & Protection Ensure leakage current is within safe limits and overload protection (circuit breakers, fuses) works.
> Terminals: Check for and clean any corrosion or debris on the terminals. Ensure they are tight and secure.
> Ports and Connectors Test: Ensure all charging ports and connectors are clean and free from debris.
> Indicator lights Test: Verify that all indicator lights on the charger are functioning properly.
> Cooling system Test: Check that the cooling fan is working and not obstructed, and ensure the charger is not overheating.
> Compatibility Check: Confirm the charger is compatible with the specific battery model.
> Safety Certifications Check: Verify the charger has proper safety certifications.
> Charging Process Check: Ensure the charger is providing the correct voltage and current output. Check that the battery is securely attached to the charger during use.
> Performance Test: Listen for unusual noises or smells coming from the battery or charger during operation. If possible, perform a load test to check the batterys performance under stress.
