on of the acid in the solution penetrating the
plates mid reacting with the active material, but does no injury.
Since the acid in the solution joins the active material in the plates
the density of the solution becomes proportionately lower. This is to
be expected and should cause no concern.

In order that the entire plate volume of active material may be in
chemical action during charge, the battery should stand before being
placed on charge--until the solution has bad time to penetrate the
entire thickness of the plates. This requires at least twelve hours,
but not more than twenty-four hours.

5. Just before charging the battery, again fill with 1.275 electrolyte
to 3/8 inch over the top of the separators. After this, do not add
anything but distilled water to the battery solution.

6. The battery should then be put on charge at the finish rate until
the gravity stops rising. At the end of this period the specific
gravity should be between 1.280 and 1.300. It may take from 36 to 72
hours before this density is reached.

Care should be taken not to prolong the charging unduly, for that may
cause active material to fall out of the grids, thus injuring the
plates beyond repair.

7. Because of the evaporation of water in the solution during the
charging process, it is necessary to add distilled water from time to
time in order to keep the solution above the tops of the separators.

The temperature of the battery while on charge should never exceed 110
degrees Fahrenheit. If the temperature rises above this point the
charging must be discontinued for a time or the rate decreased.

If at any time during the initial charging the density rises above
1.300 some of the solution should immediately be drawn off with a
syringe and distilled water added. This must be done as often as is
necessary to keep the density below 1.300.

If the specific gravity does not change after two successive readings
and does not then read within the limits of 1.280 to 1.300 it should
be adjusted to read correctly. If the reading is less than 1.280 it
should be adjusted by drawing off as much solution as can be taken out
with a syringe and electrolyte of 1.400 specific gravity added. The
battery must then be placed on charge for at least four hours and
another reading taken. If it is again found to be less than 1.280 this
operation should be repeated as many times as necessary to bring the
density up to 1.280.

9. The height of solution