Posted by Janicholson on August 13, 2019 at 19:58:26 from (24.240.46.228):
In Reply to: hydrometer ? posted by 55 50 Ron on August 13, 2019 at 19:42:07:
It is a direct reading of the temperature adjusted specific gravity. As such it measures the Mass of the battery acid against gravity. The higher the charge in the battery, the more Sulfur is chemically moved into the fluid, and off of the plates. Thus the "acid" weighs more. When discharged, the acid can become much less saturated, and watery. This can allow a battery to freeze when dead and cold. If there has been no added distilled water, and if the cells are accessible, it can sure do a good job. It also shows distinct differences between good cells, and bad. Jim
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Today's Featured Article - Grain Threshing in the Early 40's - by Jerry D. Coleman. How many of you can sit there and say that you have plowed with a mule? Well I would say not many, but maybe a few. This story is about the day my Grandfather Brown (true name) decided along with my parents to purchase a new Ford tractor. It wasn't really new except to us. The year was about 1967 and my father found a good used Ford 601 tractor to use on the farm instead of "Bob", our old mule. Now my grandfather had had this mule since the mid 40's and he was getting some age on him. S
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