What does โSLAโ mean with respect to an SLA Battery?
โSealed Lead Acidโ-Battery
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15
What is a hazard when storing NI-CAD batteries and lead-acid batteries in the same area?
The fumes from one type can contaminate the electrolyte in the other type.
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15
Using a multimeter, how would a technician read current?
Inserting the multimeter in series by opening or breaking the circuit. The positive side of the meter (RED) is connected towards the positive voltage source.
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15
What does LED stand for?
Light-emitting diode
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15
What is the open-circuit cell voltage of a NI-CAD battery?
1.25 volts.
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15
When reading specific gravity of a fully charged lead-acid battery, what indicates high state of charge?
Specific gravity reading between 1.275 and 1.300.
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15
Define Short Circuit.
Low resistance path between two poles (a component and/or a conductor and ground).
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15
What is considered to be the open-circuit voltage of a fully charged 12 cell lead-acid battery?
Approximately 26.4 volts. Or (12 x 2.2 volts) 28 volts are required for charging.
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15
Why would you not perform a specific gravity check of electrolyte NI-CAD battery?
The specific gravity does not change with the state of charge.
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15
What is a probable cause when troubleshooting a NI-CAD battery for failing to deliver its rated capacity?
Faulty cells or cell imbalance.
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15
What electrical component converts Alternating Current (AC) to Direct Current (DC)?
Rectifier
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15
What should be done when interchanging a NI-CAD battery with a lead-battery?
Clean, dried & neutralized with Boric acid or ammonia, then completely air/oven dried.