Adding Water - Hudson Super Six 1916 Reference Book

The proper specific gravity of the electrolyte, when the battery is fully charged is 1,300, as indicated by the
hydrometer syringe, but a variation of from 1.275 to 1.300 is allowable. NEVER ADD ACID OR
ELECTROLYTE TO THE CELLS EXCEPT TO REPLACE LOSS BY SPILLING, A BROKEN JAR OR
WHEN REMOVING SEDIMENT.
The electrolyte must always cover the plates. Replace evaporation by adding pure, fresh water. NEVER ADD
ACID.
If below the bottom of the filling tubes (see Fig. 9; "keep liquid up to this line"), add pure, fresh water,
bringing the liquid up to the proper height-level with the bottom of the filling tube. Ordinarily it will require only
2 or 3 tablespoonfuls of water. In hot weather it may require more. Once every two weeks in cool weather and
once every week in warm weather, unscrew the filling plugs and observe the height of the Electrolyte, KEEP IT
UP TO THIS POINT. THE FILLING PLUGS MUST BE REPLACED AND SCREWED UP TIGHTLY AFTER
FILLING.
IF A PLUG IS LEFT OUT, OR LOOSE, THE SOLUTION MAY FLOOD OUT OF THE CELL,
ESPECIALLY WHEN THE BATTERY IS BEING CHARGED. IF A PLUG 19 LOST OR BROKEN, OBTAIN
A NEW ONE AT ONCE.
When the battery is fully charged, the electrolyte or solution in the cells should have a specific gravity of
from 1.275 to 1,300 as indicated by the hydrometer syringe (Page 69). The gravity will be lowered, due to
discharge, and when completely discharged will register from 1.150 to 1.175 - about 125 points less than when
fully charged. If one cell regularly requires more water than the others, thus lowering the gravity, a leaky jar is
indicated. Even a very slow leak will in time relieve the cell of all its electrolyte. A leaky jar should be replaced
immediately with a new one,
The sediment which gradually accumulates in the bottom of the jars, should be removed before it reaches the
bottom of the plates, as it is very harmful to the battery. Its presence is indicated by lack of capacity, excessive
evaporation of the electrolyte and excessive heating when charging.
When a battery is in need of repairs, such as removal of sediment, leaky jar, broken cover, etc., better results
follow if the work is done at a place where they are thoroughly familiar with storage batteries. In such cases, it is
best to communicate with the Hudson Motor Car Company, or the Electric Storage Battery Company at its nearest
office, who will advise you where to send the battery.
DO NOT SEND BATTERIES WITHOUT RECEIVING INSTRUCTIONS.

Adding Water

Sediment
Repairs
71