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Battery Test
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'74 V-20/ BF 150 '95 V-21/ BF 150 '84 V-20/ 200 2.4 Merc '87 V-20/'18 F150 Yamaha 
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#2
08-26-2013, 08:52 PM
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Very cool
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Willy 1986 V20 Old School 1992 V20 1992 150 Yamaha 1997 HydraSport 2250 Vector 2009 17' G3 Outfitter "G Spot" http://www.youtube.com/watch?v=TDebw...eature=related "I won't be wronged, I won't be insulted and I won't be laid on a hand on. I don't do these things to others and I require the same from them" JW
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#3
08-26-2013, 09:03 PM
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Quote:
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1987 V20 w/1987 150HP Yamaha on a Shoreland'r Trailer 1978 16.5 Airslot w/1996 120HP Force on a Four Winns trailer 1996 V21 w/1993 200HP Mercury on a Shoreline Trailer All towed by a 5.7L Hemi Durango. If God didn't have a purpose for us we wouldn't be here, so Live simply, Love generously, Care deeply, Speak kindly. (Leave the rest to God)  Silence, in the face of evil, is itself evil. Not to speak is to speak, not to act is to act. God will not hold us guiltless.
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#6
08-29-2013, 11:22 PM
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I have a battery tester, so I got a few dead batteries and a few new ones.. all Duracells.... mixed them up so I didn't know which was which...and did the drop test... it correctly id'ed the good from the bad on all of them... pretty amazing....
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1987 V20 w/1987 150HP Yamaha on a Shoreland'r Trailer 1978 16.5 Airslot w/1996 120HP Force on a Four Winns trailer 1996 V21 w/1993 200HP Mercury on a Shoreline Trailer All towed by a 5.7L Hemi Durango. If God didn't have a purpose for us we wouldn't be here, so Live simply, Love generously, Care deeply, Speak kindly. (Leave the rest to God) Silence, in the face of evil, is itself evil. Not to speak is to speak, not to act is to act. God will not hold us guiltless.
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#7
08-30-2013, 12:10 AM
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Here is the best explanation I have found
http://boards.straightdope.com/sdmb/...d.php?t=693803 "DLPoole DLPoole is offline Guest Join Date: Aug 2013 Guys, Its not the weight, its the internal densities Check out the Wikipedia entry on Alkaline Battery: http://en.wikipedia.org/wiki/Alkaline_battery And in particular, importantly, the cross section diagram: http://en.wikipedia.org/wiki/File:Al...ry-english.svg There's a cavity at the bottom with a pressure expansion seal in the middle. It's there because the battery manufacturers know the total volume of the anode and cathode above it are going to shrink during discharge and they can't allow that shrinkage to pull the cell apart. Also, because of the pressure seal, nothing enters the cell and nothing leaves, so the total mass and hence the weight don't necessarily change with discharge unless the seal bursts. The half reactions show the electron flow electrochemically and through the discharge circuit. The overall reaction shows that after discharging, oxygen ions have moved from the Manganese Oxide cathode and into the Zinc Anode, which becomes Zinc Oxide. No oxygen enters or leaves the cell, but the oxygen doesn't occupy the same volume when originally part of the Manganese Oxide and thereafter as part of the Zinc oxide. It depends on the "intercalation," or in ordinary language, how well the oxygen "fits" in between the other atoms in the cathode and then the anode. In this case, the oxygen fits better and occupies less volume as part of the Zinc anode than it did as part of the Manganese Oxide cathode, so the total volume shrinks ever so slightly, the cavity at the bottom grows ever so slightly, and the bottom of the can becomes ever so slightly more elastic. The difference is barely large enough to see in an iPhone video, but can be measured in its sound track. When new, at 1.60V, a cell bounces from a 5" fall about a half inch off a granite surface then falls on its side with the two peaks in the sound track about 150mS apart; when discharged to 1.40V, the same cell bounces about an inch and the time is closer to 200mS."
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Linear Mode
