Alkaline Battery Capacity
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Posted by Bill Bowden on June 8, 2008, 1:31 am
Please log in for more thread options the Duracell and Raovac sites, but couldn't find much data for standard cells. Read a few notes indicating the capacity of a standard "D cell" is somewhere between 12 and 16 amp hours. Anybody know what capacity to expect from a standard Alkaline "D cell" at a continuous 0.5mA discharge rate until the voltage falls to 1.1 volts? Thanks, -Bill | |||||||||||||||||||||||||
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Posted by Bob Monsen on June 8, 2008, 1:55 am
Please log in for more thread options http://www.duracell.com/oem/Pdf/new/MN1300_US_CT.pdf | |||||||||||||||||||||||||
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Posted by BobW on June 8, 2008, 2:18 am
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>> Can't seem to locate any battery specs for Alkaline "D" cells. Tried
>> the Duracell and Raovac sites, but couldn't find much data for >> standard cells. Read a few notes indicating the capacity of a standard >> "D cell" is somewhere between 12 and 16 amp hours. >> >> Anybody know what capacity to expect from a standard Alkaline "D cell" >> at a continuous 0.5mA discharge rate until the voltage falls to 1.1 >> volts? >> >> Thanks, >> >> -Bill >
> > http://www.duracell.com/oem/Pdf/new/MN1300_US_CT.pdf > This guy Al Kaline was not only a fabulous baseball player (over 3000 career hits), but he apparently makes a hell of a battery, too! Bob -- == NOTE: I automatically delete all Google Group posts due to uncontrolled SPAM == | |||||||||||||||||||||||||
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Posted by Tim Wescott on June 8, 2008, 12:41 pm
Please log in for more thread options On Sat, 07 Jun 2008 22:31:26 -0700, Bill Bowden wrote:
> Can't seem to locate any battery specs for Alkaline "D" cells. Tried the
> Duracell and Raovac sites, but couldn't find much data for standard > cells. Read a few notes indicating the capacity of a standard "D cell" > is somewhere between 12 and 16 amp hours. > > Anybody know what capacity to expect from a standard Alkaline "D cell" > at a continuous 0.5mA discharge rate until the voltage falls to 1.1 > volts? > > Thanks, > > -Bill If you design things to work all the way down to 0.9V/cell then it'll be a better fit for NiMHs, and you'll wring a tad more running time out of your battery. You may find that at such a low current you're limited by the shelf life of the battery (you certainly will be for NiMHs!). Unfortunately that particular data sheet doesn't give it, but alkaline cells seem to last for years on the shelf, so it may not be that much of a consideration. -- Tim Wescott Control systems and communications consulting http://www.wescottdesign.com Need to learn how to apply control theory in your embedded system? "Applied Control Theory for Embedded Systems" by Tim Wescott Elsevier/Newnes, http://www.wescottdesign.com/actfes/actfes.html | |||||||||||||||||||||||||
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Posted by BobW on June 8, 2008, 2:48 pm
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> On Sat, 07 Jun 2008 22:31:26 -0700, Bill Bowden wrote:
> >> Can't seem to locate any battery specs for Alkaline "D" cells. Tried the
>> Duracell and Raovac sites, but couldn't find much data for standard >> cells. Read a few notes indicating the capacity of a standard "D cell" >> is somewhere between 12 and 16 amp hours. >> >> Anybody know what capacity to expect from a standard Alkaline "D cell" >> at a continuous 0.5mA discharge rate until the voltage falls to 1.1 >> volts? >> >> Thanks, >> >> -Bill >
> If you design things to work all the way down to 0.9V/cell then it'll be > a better fit for NiMHs, and you'll wring a tad more running time out of > your battery. > > You may find that at such a low current you're limited by the shelf life > of the battery (you certainly will be for NiMHs!). Unfortunately that > particular data sheet doesn't give it, but alkaline cells seem to last > for years on the shelf, so it may not be that much of a consideration. > > -- > Tim Wescott > Control systems and communications consulting > http://www.wescottdesign.com > Take a look at the so-called "hybrid" NiMH batteries. They claim MUCH longer shelf life, and as a side benefit of this, they come pre-charged. There are a few manufacturers of this new technology. Sanyo (Eneloop brand) is one of them: http://www.eneloopusa.com/eneloop.html http://www.eneloop.info/fileadmin/redakteur/Articles/Teraoka_Article_EN.pdf Bob -- == NOTE: I automatically delete all Google Group posts due to uncontrolled SPAM == | |||||||||||||||||||||||||
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> the Duracell and Raovac sites, but couldn't find much data for
> standard cells. Read a few notes indicating the capacity of a standard
> "D cell" is somewhere between 12 and 16 amp hours.
>
> Anybody know what capacity to expect from a standard Alkaline "D cell"
> at a continuous 0.5mA discharge rate until the voltage falls to 1.1
> volts?
>
> Thanks,
>
> -Bill