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Ampere-hour

An ampere-hour or amp-hour (symbol: A⋅h or A h, often simplified as Ah) is a unit of electric charge, recommended for use in batteries and electrolytic devices. It has dimensions of electric current multiplied by time and corresponds to the charge transferred by a steady current of one ampere flowing for one hour (3,600 seconds). Thus 1 A⋅h equals 3600…

Applications & Measurement

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Ampere-hour at a glance

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Key facts & relationships

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SI units
3600 C
Symbol
A⋅h, A h
Unit of
Electric charge
Unit system
Non-SI metric unit

Topics to explore

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Overview

Simple conceptual examples

Use

In other units of electric charge

Practical Examples

Advanced semantic analysis

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How this topic connects Entity context

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Ampere-hour

Top relations

related to Practical Examples · 12
Ampere-hour → An, An AA, Automotive, Battery, BMW, Later BMW, One, S100, S90, Since, Tesla Model S60, Tesla's S85
related to Use · 4
Ampere-hour → It, The, This, X-ray
related to In other units of electric charge · 3
Ampere-hour → CGS-EMU, CGS-ESU, One
SI units · 1
Ampere-hour → 3600 C
Symbol · 1
Ampere-hour → A⋅h, A h
Unit of · 1
Ampere-hour → Electric charge
Unit system · 1
Ampere-hour → Non-SI metric unit

Important terminology Word statistics

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Important terminology

battery electric charge current energy batteries power capacity voltage one often symbol amps usually unit 3600 ma equivalent hour commonly

Entity relationships Subject–Predicate–Object triples

Extracted RDF-like relationships with confidence and source. The table includes structured facts and lower-confidence contextual relations.
SubjectPredicateObjectConfidenceSrc
Ampere-hourSI units3600 C1.00infobox
Ampere-hourSymbolA⋅h, A h1.00infobox
Ampere-hourUnit ofElectric charge1.00infobox
Ampere-hourUnit systemNon-SI metric unit1.00infobox
electroplatinginstance ofUseThe ampere-hour is frequently used in measurements of electrochemical systems0.80text
for battery capacity where the commonly known nominal voltage is understood.A milliampere secondinstance ofUseThe ampere-hour is frequently used in measurements of electrochemical systems0.80text
Ampere-hourrelated to In other units of electric chargeOne0.60section
Ampere-hourrelated to In other units of electric chargeCGS-ESU0.60section
Ampere-hourrelated to In other units of electric chargeCGS-EMU0.60section
Ampere-hourrelated to Practical ExamplesAn AA0.60section
Ampere-hourrelated to Practical ExamplesAn0.60section
Ampere-hourrelated to Practical ExamplesAutomotive0.60section

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    Map overview Semantic statistics

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    Ampere-hour

    Nodes35
    Edges34
    Triples25
    Avg. degree1.94
    Density0.057143
    Components1
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