Batteries Flashcards
What does a hydrometer check?
Tests specific gravity, and checks for impurities
What is specific gravity?
The density of any liquid as compared to double distilled water (1.0000)
What is the max cell difference in a battery before you need to replace
50 points of .050
What is the density of a normal fully charged battery?
1.265
How many amps is a high fast charge?
About 50 amps
How many amps is a slow charge
3-5 amps
How many amps is a trickle charge?
1-3 amps
What gas is given off when charging a battery?
Hydrogen
What are some precautions when charging a battery
- slow and long is better
- do not over charge
- watch for temp.
- wear eye and clothing protection
- shut off charger before connecting or disconnecting
What are two types of battery disconnect devices?
Manual switch disconnect
Relay switch disconnect
What is the percentage of a fully charged battery?
36% sulfuric acid (H2SO4)
64% water (H2O)
What does a positive plate do during charging?
Takes on electrons
What is PbSO4?
Lead sulfate
