Marine Battery Charger Quiz (25 Questions)

What are the three charging stages of a smart battery charger?

• Start, Stop, Float

• Bulk, Absorption, Float

• Charge, Boost, Maintain

• Boost, Decline, Equalize

The bulk charging stage focuses on:

• Reducing current

• Maintaining voltage

• Quickly replacing charge

• Cooling the charger

The absorption stage reduces current to:

• Protect the charger

• Maintain safety regulations

• Top off the battery

• Start float mode

What happens during the float stage?

• Battery discharges slowly

• Battery rests

• Charger maintains battery at full charge

• Charger turns off

Proper charger size is typically based on:

• Battery cable length

• Number of batteries

• Battery bank amp-hour rating

• Type of alternator

A rule of thumb for sizing a charger is:

• 5% of total battery capacity

• 10-20% of battery bank’s Ah rating

• 50% of inverter size

• Equal to total load draw

A charger designed for a 400Ah battery bank should ideally output:

• 10A

• 20-40A

• 100A

• 200A

Which of the following can be damaged by incorrect charging voltages?

• Alternators

• AGM batteries

• Shore power inlets

• Power inverters

Why is it important to use fuses at the battery end of a charger cable?

• To control power usage

• To prevent overcharging

• To protect against short circuits

• To increase charging speed

Smart chargers adjust their voltage and current based on:

• Time elapsed

• Battery temperature and chemistry

• Charger fan speed

• Power supply amperage