ampere-hour

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ampere-hour

[′am‚pir ¦au̇·ər]
(electricity)
A unit for the quantity of electricity, obtained by integrating current flow in amperes over the time in hours for its flow; used as a measure of battery capacity. Abbreviated Ah; amp-hr.

ampere-hour

A current flow for one hour measured in amperes (amps). Abbreviated "Ah" and commonly called "amp-hour," it is widely used to rate how long it takes for a battery to discharge. For smaller batteries, a milliampere-hour (mAh) rating is used. For example, a 500 mAh battery means it will release 500 milliamps of current at a specific voltage for one hour before it is discharged. See ampere.


Amp-Hours and Watt-Hours
Batteries can be rated in amp-hours (Ah) or watt-hours (Wh) as shown in these examples for a digital camera. The bottom battery is equivalent to 3.3 Wh, while the top battery is equivalent to 667 mAh.
References in periodicals archive ?
Choosing to go a little bit personal with her take on the Mah Jong was interior designer Chat Fores.
Interior designer Chat Fores literally took her mother's Japanese collection and draped them on the Mah Jong Sofa.
MAH: Like I said, my coworkers did say my audiences would hate me after this.
A new series of MAH gigs, which has provided a platform for many unsigned bands, will begin again in September.
Mah is also a member of the Executive Committee of the International Islamic Financial Market (IIFM), member of the Financial Stability Committee, alternate Board member of the IIFM, and a Board member of the Labuan IBFC Incorporated Sdn Bhd, Labuan FSA Incorporated Sdn Bhd and Pristine Era Sdn Bhd.
For instance, if the MAH change relates to a change of address, the application should differentiate between a change of address within the same country, and a change of address to a different country.
As the women argue over a Mah Jong rule, they break out into dance and movement.
"Mah company sergeant run up all flustered with his .45 in his hand, yellin' Bill, they said you's killed!
A year ago, Derakhshani was reportedly banned from traveling abroad for collaborating with Mah Banoo, and the musicians and singers from Mah Banoo have been summoned by I security forces on several occasions in the past year.
The segments considered within the scope of the report are -- based on type of power banks: portable power banks (excluding solar power banks), battery cases (phone charging cases), and solar power banks; based on power ratings: up to 3,000 mAh, 3,001 mAh -- 8,000 mAh, 8,001 mAh -- 20,000 mAh and above 20,000 mAh; based on type of battery: lithium-ion and lithium-polymer.
Sodium electrochemically alloys with tin, with an optimal composition of [Na.sub.3.75]Sn (theoretical capacity: 516 mAh [g.sup.-1]).