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Flashcards in batteries Deck (29)
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1

Which type of batteries cannot be store with lead acid batteries?

Zinc Air

2

What should you correct battery readings to?

80 degrees, add or subtract .001 for every 3 degree over or under

3

Saltwater that mixes with the electrolyte in a battery cell creates what gas?

Chlorine

4

What is the specific gravity of a normal full charged battery?

1.21 to 1.22

5

What should the specific gravity of acid be prior to filling batteries?

1.30

6

If putting a battery into storage, what type of charge should you give it?

Boost

7

In order to charge a battery it is necessary that the voltage of the charging line exceeds?

The total voltage of the batteries connected in series and being charged

8

What charge should you put on a battery going into wet storage?

Boost charge

9

What percentage of battery’s life should remain when discarding a battery?

80%

10

Vented batteries will read how many volts per cell at the completion of a charge of a closed circuit battery?

2.35V

11

What does a red, white and green color indicator mean for a floating ball charge?

90%

12

What type of charge are ships starting batteries placed on?

Float

13

What are the colors of a floating ball indicator?

Red, White, and green = 90%; Red and white = 50%; Red = 10%

14

Sealed batteries will float at __ volts and have a __ specific gravity?

2.25V and 1.300

15

What does a fully charged open circuit battery read per cell in voltage?

2.15V per cell

16

What will specific gravity and voltage be at the completion of a charge?

2.35V and specific gravity of 1.210 to 1.220

17

Float charge voltage, corrected to 80 degrees, for vented batteries should be maintained at?

2.15V per cell

18

Float charge voltage, corrected to 80 degrees, for sealed batteries should be maintained at?

2.25V per cell

19

Dry-charged batteries stored under these conditions will retain most of their charge for as long as?

Two Years

20

20. What does the electrolyte mix in a battery consist of?

Water and Sulfuric Acid

21

21. What temperature should the battery electrolyte mix never go above when under a charge?

125 degrees F

22

22. What type of charge is used to drive sulfate off of the plates?

Boost (equalizing)

23

The equalizing charge on a wet cell battery is increased to?

2.33 volts per cell

24

What method is NOT recommended for disposing of batteries?

Open ocean

25

As a battery cell charge nears completion, what is liberated at the negative plate?

Hydrogen

26

Which two types of batteries are recombinant?

Gel Cell and Lead-Acid

27

How do batteries charge?

Pos to Neg

28

At what PSI will low L/O PSI alarm at on a small boat alarm panel?

18

29

On the alternator, what controls the strength of the rotor field?

Voltage regulator