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12V Battery modified to look like a 6V

                      Battery Safety

Working on our around a car battery can be dangerous if you are wearing any jewelry. Our own club member Jerry Sharp had an experience similar to the one below, except it was his watch band that burned him.
This article was written by Mike Allen of Popular Mechanics. I picked it up from the Trail Birds news letter from SW Florida.


Let me relate something that happened to a friend of mine, a dentist by trade who likes to work on his sports car occasionally. In preparation for some other work, he elected to remove the battery from the car, using a box wrench to loosen the battery clamps. The wrench made contact with his wedding ring (he's left handed), and the ring in turn made contact with the battery hold down. A massive short circuit welded his ring to the hold down and to the wrench, which in turn was welded to the positive terminal.
Car batteries store an enormous amount of energy, and they're optimized to deliver it in a very short period of time. A shorted car battery can easily deliver several hundred amps -- more than an arc-welding machine. Within a second, my friend's wedding ring was almost red-hot, and only a fast reaction with his other hand to break the connection by hitting the wrench prevented it from remaining connected long enough to melt. The ring had to be sawed off his finger at the emergency room, and it was more than a month before the burn specialist was sure he wouldn't lose the finger altogether.
Two lessons here. First, remove all jewelry when working with tools, even something as simple as a box wrench. That's fairly obvious, eh?
Second, always remove the battery's ground clamp before loosening the positive. If you remove the negative clamp and inadvertently complete a circuit to ground, there will be no current flow because the ground clamp is already grounded. Subsequent shorting of the positive terminal to ground will then produce no current flow because the current has no return path to the negative post. And, of course, always reconnect the ground last.

By Mike Allen Popular Mechanics

Take a very close look at the 6V battery in the photo above. Can you tell me what is wrong with it?
jsailors@frontier.com



  • Home
  • Our Story
    • News & Announcements
    • Cliff Noxon Service Award
  • Past Events
    • 2011 >
      • Allure of the Automobile
      • Great Oregon Steam Up
      • Carousel Trip
      • Veterans Dinner
      • Christmas Luncheon
    • 2012 >
      • 2012 Kick-Off Luncheon
      • Superior Glass
      • June 2012 Picnic
      • CTCI - Memphis
      • Gorge Tour
    • 2013 >
      • 2013 Kick-Off Luncheon
      • President's Day 2013
      • Guide Dog Graduation
      • SMS Auto Fabrics
      • July BBQ
      • August Rally
      • September Business Meeting
      • Oct Covered Bridge Tour
    • 2014 >
      • 2014 Kick-Off Luncheon
      • Feb Dessert Auction
      • 2014 40th Birthday party
      • May Tech Session
      • July Rally
      • August Progressive Dinner
    • 2015 >
      • 2015 Kick-Off Luncheo
      • March Tour of Ken Austin collection
      • April Air National Guard Tour
      • May PT Boat Tour
      • July Rally
      • August Gorge Tour
      • August CTCI Convention in Albuquerque
      • Sept Carlton Crush
      • Oct Tour & Lunch
    • 2016 >
      • Feb 2016 Valentine Party
      • March - World of Speed
      • May 2016 - John Lemmon's car collection
      • June 2016 - Timberline
      • July 2016 - Rally
      • September 2016
      • Oct 2016 - Model Railroad
      • NOV 2016
    • 2017 >
      • Jan 2017
      • Feb 2017
      • March 2017
      • April 2017
      • May 2017
      • June 2017
      • July 2017
      • Sept 2017
      • Oct 2017
    • 2018 >
      • Jan Kick-Off Dinner
      • Feb 2018
      • March 2018 Freedman Collection
      • April 2018 Tech Session
      • May 2018 WAAM & LeMay
      • June 2018
      • August 2018
      • October 2018
      • November 2018
      • December 2018
    • 2019 >
      • January 2019
      • Feb 2019 Albany Carousel
      • March 2019 Ken Austin Tour
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    • 2023 >
      • Jan 2023
  • Up Coming Events
  • Photos
    • As seen at a local Cruise-In
    • Prisoners of Time
    • 1962 Budd XT Bird
    • 1961 Buick Flamingo
    • 1916 Gas Prices
    • Ford History Video
    • Consumer Reports
    • Fords of the 1950's
    • 57-58 Thunderbird
    • Driving to Wichita 2006
    • Circus Party at 2008 International Convention
    • Working on members' cars
    • 1957 Rebuild
  • Contact Us
  • Join Us
  • Tech Tips
    • Preparing for winter storage
    • Cooling System >
      • Anti Freeze information
      • Plugged Overflow Tube
      • Radiator Caps
      • Temp Sender Bushing Removal
      • Cooling Trick
    • Electrical >
      • Battery Safety
      • Ground Strap
      • Safety Circuit Breaker
      • Turn Signal Switch
      • Fuel & Temp Gauge Safety
      • Electrical Leaks
    • Slide Shows >
      • Engine Install slide show
      • Body Removal Slide Show
      • Another Engine Install
    • Cleaning Tips
    • Valve Adjust tip
    • 1955 Shop Manual error
    • Turning Rotors
    • Welding around Brake Cleaner
    • Paint on Chrome
    • Wind Wing Glass Removal
    • Automatic Transmission Removal
    • Arm Protection
    • Changing the Fuel Pump
    • Rusty Lug Nuts
    • Local Parts availability
  • Club Store
  • Bird Watcher
    • 2014 >
      • Sept 2014
  • Cruise-Ins
  • Auto Service Recommendations