|
Case Tractors Discussion Board |
Re: Re: Re: DO NOT JUMP 6 VOLTS WITH 12
[ Expand ] [ View Follow Ups ] [ Post Followup ] [ Return to Forum ]
Posted by Roger on January 22, 2004 at 21:42:11 from (205.188.209.105):
In Reply to: Re: Re: DO NOT JUMP 6 VOLTS WITH 12 posted by todd hamilton on January 20, 2004 at 18:23:31:
Todd has done a great service in pointing out the dangers of charging or jumping batteries. However, there are some flaws in his letter. First, a six volt battery will NOT explode just because it’s being jumped with a 12 volt battery. Since a lead acid battery converts lead sulfate into sulfuric acid during the process of charging, hydrogen gas bubbles up from the positive plates and oxygen gas bubbles up from the negative plates. Hydrogen gas is very explosive especially with oxygen present. It doesn’t require a rocket scientist to figure out what will happen if a spark occurs in the presence of those gasses. The point is: No spark, no explosion! What will happen if a 12 volt battery is continually used to jump a 6 volt battery? Think of volts as pressure. If you want to put air into a tire, you need to have an air pressure source that’s greater than the pressure in the tire. In order to charge a 6 volt battery, you need an 8 volt charging source. Certainly, 12 volts is greater than 8 volts. With the additional voltage push of 12 volts instead of 8 volts, the 6 volt battery will heat up and its liquid contents will evaporate. Batteries are charged best at a 2 volt greater push and a 3 to 10 amperage rate. At that voltage and amperage, lead sulfate can easily dissolve at its own rate to form sulfuric acid. Using a 12 volt battery to jump a 6 volt battery will cause a much higher charging rate. Instead of dissolving, the lead sulfate will clump to the plates, and the 6 volt battery will soon be rendered useless. That’s called a sulfated battery. That’s a good economic reason for NOT using a 12 volt battery to jump a 6 volt battery.
Second, comparing alternating electrical current (AC) to direct electrical current (DC) is like comparing apples to oranges. AC is at a constant voltage, and it alternates between positive and negative poles (sine wave) 60 times per second. DC is NOT at a constant voltage or amperage, and it does not alternate. For that reason, it cannot be argued that jumping a 6 volt battery with a 12 volt battery is the same as plugging a 110 volt TV set into a 220 volt plug. When hooked together, the 12 volt battery will drop below 12 volts and the 6 volt battery will exceed 6 volts. The potential difference will not be two to one. Regardless, if you value your appearance and health, keep sparks away from ANY lead acid battery that’s being charged or jumped! Using a 12 volt battery to jump a 6 volt battery greatly enhances the presence of hydrogen gas.
Follow Ups:
| Same-Day Shipping! Most of our stocked parts ship the same day you order (M-F). Expedited shipping available, just call! Most prices for parts and manuals are below our competitors. Compare our super low shipping rates! We've kept the same low rate for six years. We are a Company you can trust and have generous return policies! Shop Online Today or call our friendly sales staff toll free (800) 853-2651. [ More Info ] |
Home
| Tractor Manuals
| Tractor Parts
| Forums
Copyright © 1997-2012 Yesterday's Tractor Co. - A Washington State Corporation
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. Yesterday's Tractors - Antique Tractor Headquarters |
About this site - Yesterday's Tractors is your one-stop source for antique tractors. If you use antique tractors, collect antique tractors, or just enjoy looking at antique tractors, welcome to our site! Join more than 275,000 other classic tractor enthusiasts from all over the globe. We have many resources for antique tractor enthusiasts available including photos, classified ads, more than 24 antique tractor forums, show guide, values, specs and much more. Bookmark this site and come back often. Thanks for stopping by! Feel free to use our feedback form to send us your comments, suggestions and ideas.
|
|
