with practically no day load.
This condition necessitates running the plant to carry the load, but
at the same time the battery is continually receiving from 10 to 15
amperes charge, with the result that the battery may receive too much
charging. This would be indicated by the battery bubbling freely every
time the plant is operated. To prevent this condition, the user should
be instructed to carry the load off the battery frequently enough to
prevent continual bubbling.

Where Small Load Is Used.

There are many installations where the battery capacity is sufficient
to last several weeks. On installations of this kind it is advisable
to charge the battery to FULL at least once a week.

The dealer or service man should use his own judgment on the preceding
instructions as to which is best suited for the different conditions
encountered.

Regularly on the first of each month, regardless of whether or not the
battery has been used, a special charge, called the Equalizing Charge,
should be given. This charge should be given as follows: The battery
should be charged until EACH cell is bubbling freely from top to
bottom on surface of the outside negative plates and then the charge
should be continued for TWO MORE HOURS.

The monthly equalizing charge is a NECESSARY precautionary measure to
insure that the user will bring each cell in the battery up to maximum
gravity at least once a month. It also provides a means on the
ampere-hour meter plants to set the ampere-hour meter hand at FULL
when the battery is FULL.

The users should be cautioned to inform the service man or dealer
immediately if any cell fails to bubble at the end of an equalizing
charge, when all others are bubbling freely. This will enable the
service man to inspect such cells for trouble and remedy same before
the trouble becomes serious. (See further information under inspection
and repairs.)

INSPECTION TRIPS

Undercharging or injurious sulphation is the most common trouble
encountered. Undercharging causes the plates to blister and bulge, and
in place of good gray edges on the negative plates and good brown
color edges on the positive plates, the edges will show a faded color,
with very little brown color showing on the edges of the positive
plates.

Overcharging is not so evident on inspection, except that in such
cases the active material from the positive plates, which is brown in
color, will be thrown to the bottom as sediment mo