Why is there a difference between the open circuit and closed circuit voltages that are measured in a battery?
Internal resistance.
In an aviation battery, how are the individual cells connected?
Connected in series.
When disconnecting a battery from an aircraft, which cable is disconnected first?
The negative cable.
For a lead acid battery what is the tool used to indicate the state of charge of the electrolyte?
A hydrometer.
What are the two types of battery chargers available to technicians?
Constant current chargers and Constant voltage chargers.