Battery Connections & Testing, Visual Inspections Information

FIGURE 3 - CHARGING ADAPTER:

BATTERY CONNECTIONS

Load testing requires the use of battery side terminal adapters the same as with charging to ensure good connections (see Fig. 3).
BATTERY TESTING

Before testing a battery, it is important that the battery has a proper charge.

1. Connect a digital voltmeter and a battery load tester across battery terminals.

2. Apply 300 ampere load for 15 seconds to remove surface charge from battery. Remove load.

3. Wait 15 seconds to let battery recover and apply specified load as indicated on battery label. Read voltage after 15 seconds with specified load applied, then remove load.

4. Temperature of the battery will change the minimum voltage to pass the load test. To properly determine minimum voltage, estimate temperature battery has been exposed to for the last several hours, i.e., room temperature or outside ambient to within 10 degrees Fahrenheit, If voltage is equal to or above minimum voltage listed in the appropriate Service Manual, Section 6D, the battery is good and should be returned to service. If voltage is less than minimum requirement, replace battery.
CAUTION: All batteries generate hydrogen gas which is highly flammable. If ignited by a spark or flame, the gas may explode violently, causing spraying of acid, fragmentation of the battery, and possible severe personal injuries. Wear approved eye protection. Battery fluid is a corrosive acid. Flush any contacted area with water immediately and thoroughly.

VISUAL INSPECTION

Check for obvious damage, such as cracked or broken case or cover, that is permitting loss of electrolyte. If obvious damage is noted, replace the battery. Determine the cause of damage and correct as needed. If battery terminals are severely damaged, such as loose, burned, or broken, replacement of the battery is recommended. Evidence of small amounts of electrolyte leakage, especially around the vent holes, does not necessarily indicate the battery is bad - the leakage could have been caused by overcharging or by excessive tipping of the battery.