and light switch open, until each cell is bubbling freely from the top
to bottom on the surface of the outside negative plates and both pilot
balls are up (Delco-Light), and then CONTINUING THE CHARGE FOR FIVE
HOURS MORE. If the battery has no pilot cells, measure the specific
gravity of the electrolyte of each cell, and continue the charge until
six consecutive readings show no increase in gravity.

As an accurate check on giving the initial charge properly
(Delco-Light), we strongly recommend that hourly hydrometer readings
of both pilot cells be taken after both balls are up, the charge to be
continued until six consecutive hourly readings show no RISE in
gravity.

Due to the fact that it is impossible to hold each cell in a battery
to a definite maximum gravity when fully charged, there is likely to
be a variation of from ten to fifteen points in the specific gravity
readings of the various cells. It should be understood, however, that
the maximum gravity is the gravity when the cells are fully charged
and with the level of the solution at the water line. For example,
with each cell in a battery fully charged and therefore at maximum
gravity and with the level at the proper height, some cells may read
1.230, one or two 1.235, several 1.215 and 1.210. All of these cells
will operate efficiently, and there should be no cause for alarm. An
exception to this is the pilot cell of the Delco-Light Battery.

If this check on the initial charge is properly made, it assures the
service man and dealer that the battery is in proper operating
condition to be turned over to the user. Negligence in giving the
initial charge properly may result in trouble to both user, service
man and dealer.

The initial charge may require considerable running of the plant,
depending upon the state of charge of the cells when installed.

Instructing Users

During the time the initial charge is being given, the service man
should instruct the user on the care and operation of the plant and
battery.

The best way to give instructions to the user is to tack the
instruction cards on the wall near the plant in a place where the user
can read them easily.

Proceed to read over the plant operating card with the user. Read the
first item, go to the plant, explain this feature to the user and
allow him to perform the operation, if the instruction calls for
actual performance.

Remember, the user is not familiar with the plant and battery,