Posted by Janicholson on January 05, 2023 at 09:01:27 from (199.17.6.141):
In Reply to: Amps vs volts posted by rrlund on January 05, 2023 at 06:36:27:
Simple as possible explanation: Voltage is the push on the electricity in a wire. For voltage to actually move electricity (electrons) in the wire there needs to be a circuit that connects the negative of a voltage source to the positive of that source. A 12v battery is just called 12volt, it is really a 12.6 volt battery when charged.if the voltage source was 12v exactly, there would be no charging. To charge the charging voltage must be above 12.6 (usually, as John T points out about 14.2, or a bit more) The chemistry of the battery is not going to take more charge, it is full, so there is very little actual flow into the battery. If the battery was used to start an engine, it now has room for more chemical change and at 14.2 it accepts more charge. In 10 minutes or so the battery is full again, and actual charging just stops because it is full. The amount of discharge (a cold diesel engine cranking for a minute) allows more room in the battery and this allows the amount of amps to increase at first, then decrease as the full mark is reached. In a complete circuit the amount of amps depends on the amount of voltage, and the amount of resistance. an example is the starter motor, it has much less than 1/2 ohm of resistance (near none). This causes the battery to send hundreds of amps through the big wires to spin the engine. This reduces the chemical charge in the battery. when the engine starts the alternator replaces those electrons by pushing them back into the battery changing the chemistry to full charge. The starter motor may draw 275 amps for 30 seconds. The alternator may take 10 to 20 times that to refill the battery. Jim
Upload one or more videos to your post. Photo and video filesizes should be less than 5MB. Formats allowed are gif, jpg, png, ogg, mp4, mov, and avi. Be sure to use filenames without spaces or special characters, and filetypes of 3 digits lower case.
We sell tractor parts! We have the parts you need to repair your tractor - the right parts. Our low prices and years of research make us your best choice when you need parts. Shop Online Today. [ About Us ]
Today's Featured Article - The Nuts and Bolts of Fasteners - Part 2 - by Curtis Von Fange. In our previous article we discussed capscrews, bolts, and nuts along with their relative hardness and thread sizes. In this segment we will finish up on our fasteners and then work with ways to keep them from loosening up in the field. Capscrews, bolts and nuts are not the only means of holding two parts together. When dealing with thinner metals like sheet tin, a long bolt and
... [Read Article]
Latest Ad:
Oliver 550 Diesel runs like a watch three point hitch pto engine gone threw about two hundred hours ago nice clean tractor
[More Ads]
All Rights Reserved. Reproduction of any part of this website, including design and content, without written permission is strictly prohibited. Trade Marks and Trade Names contained and used in this Website are those of others, and are used in this Website in a descriptive sense to refer to the products of others. Use of this Web site constitutes acceptance of our User Agreement and Privacy Policy
TRADEMARK DISCLAIMER: Tradenames and Trademarks referred to within Yesterday's Tractor Co. products and within the Yesterday's Tractor Co. websites are the property of their respective trademark holders. None of these trademark holders are affiliated with Yesterday's Tractor Co., our products, or our website nor are we sponsored by them. John Deere and its logos are the registered trademarks of the John Deere Corporation. Agco, Agco Allis, White, Massey Ferguson and their logos are the registered trademarks of AGCO Corporation. Case, Case-IH, Farmall, International Harvester, New Holland and their logos are registered trademarks of CNH Global N.V.