equal to the battery nominal voltage

twice the battery nominal voltage

2.3 to 2.5 V per cell

half the nominal voltage of the battery

initial charge

freshening charge

boost charge

float charge

dead battery

battery in danger of becoming over-discharged during a working shift

fully charged battery

completely discharged battery

6 V

7 V

8 V

9 V

1 : 2

1 : 10

1 : 20

1 : 100