Exhaustion nature of different size batteries when wired in series/parallel - Science and Technology

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Shop: Unfolding Nature: Being in the Implicate Order

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OrizonsHorizon
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Registered: 10/10/05
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Exhaustion nature of different size batteries when wired in series/parallel

#4862389 - 10/28/05 02:19 AM (18 years, 5 months ago)

So lets say I have a ?C? battery and a ?AAA??1.5 volts each and wire them in series to obtain 3 volts. When connected, will the batteries drain equally? (like after an hour of use each will be at 50%) or will the amps expend accordinly by the unit?(the ?AAA? draining first)
I originally thought they would drain consistently but then again there is no way I could pull 4.5 volts out of a 3 volt ?2032? disc battery and a D cell. How about if wired in parallel?
Thanx in advance for the help

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debianlinux
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Registered: 12/09/02
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Re: Exhaustion nature of different size batteries when wired in series/parallel

[Re: OrizonsHorizon]
#4862765 - 10/28/05 08:36 AM (18 years, 5 months ago)

Batteries are rated in mAH or milliamp hours. for a theoretical example, let's say you have a battery rated for 100mAH. This battery should supply a full 100mA for a full hour before any current drain is noticeable.

Current sources, when placed in parallel will effectively provide a sum total of the 2 respective sources' mAH but only the higher of the two sources' voltage.

current sources, when placed in series will effectively provide the a sum total of the respective sources' voltages but only the higher of the two sources' mAh.

What happens, in any case, after the 1 hour rating has been exceeded is much more complicated math dependant on the physical characteristics of the batteries' construction.

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General Interest > Science and Technology

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