Electrical Engineering Stack Exchange
Electrical Engineering Stack Exchange

Questions tagged [alkaline]

In EE context, the term is related to alkaline batteries

Alkaline batteries are batteries based on zinc and manganese dioxide (Zn/MnO2) chemestry. These are the "common" batteries on the market.

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Why are Alkaline, NiMH, and Li-ion AA measured differently (mAh, mWh, etc)?

Looking around Amazon, it seems that different types of batteries are measured differently: Does anyone know why? Li-ion are measured in mWh 1200mWh ALTIZURE (Cheap-Os) 3200mWh Deleepow 3000mWh AmpTorrent NiMH are measured in mAh 2000mAh…
coolaj86
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Alkaline battery making clicking noise

Today, I started noticing a clicking noise (at a frequency of maybe 0.5Hz), and after a while, located the source as an alkaline AAA battery powering noise canceling headphones. The battery did not look all that heavily corrupted, but was leaking…
microtherion
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Can trying to draw too much current from alkaline batteries damage them?

Let me preface with an apology for asking what's probably a really basic question. A quick search couldn't turn up an answer to a question in the exact same situation. I have a DC motor (12V) that, according to the seller's specs, has a free current…
A. Owl
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Why do alkaline batteries seem to leak (corrode) more frequently when installed in a device?

I know that dead batteries can leak and the alkaline ones are specially corrosive. Alkaline batteries self discharge even when not installed in any device. I've already opened a four battery pack with one battery leaking, but this situation is by…
AmssmA
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Alkaline AA discharge curve at just a few mA (to replace a CR2032)?

I bought a pack of tealights each powered by a single CR2032 (flickering LED; builtin timer turns it on every evening for 5 h). My wife loves them, but after just a fortnight each tealight's CR2032 has dropped to 2.2 V (under load), and the LED has…
Camille Goudeseune
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Can alkaline batteries withstand reverse current transients?

I am designing a device that can be powered either through two AAA alkaline batteries, or through its USB port, with priority with the USB port. I thought of a discrete circuit that fulfills my needs (simple, almost no power consumption and very low…
dim
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Shortcircuit protection using transistors

I'm designing a short-circuit protection circuit for x2 AA battery (3V) and I'd like some tips from the community on how can I make it a low power mode circuit. When V_out is short cirtcuited, the buzzer is activated. The problem is that the power…
rod_learning
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How to measure Alkaline battery lifetime/capacity in practice LED circuit?

I have a LED light uses three 1.5V ALKALINE batteries in series. However, the capacity of the battery is not marking. When I put a multimeter in series with these three batteries and turn on the LED, the current is 76mA. I also measured the voltage…
Channing
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Proper Way of Powering a Circuit with 2 AA Batteries

That is a real primitive question. a) Many MCUs and SOCs are able to work @3V (-/+ 0.3V) b) This is voltage of 2 AA (or AAA) batteries And the real question is: What is the legitimate way to power a circuit with a MCU @3V with 2AA…
user2542253
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Convert 6 V motor to run on 4.8 V

I have an electric pencil sharpener that has a motor that seem to be intended to run on 6 V (4 x 1.5 V alkaline batteries). What are my options to make it function with 4 rechargeable NiMH batteries (4 x 1.2 = 4.8 V)? A small conversion IC would be…
norq
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Measuring battery resistance

I am trying to measure the resistance of a AA alkaline battery. The circuit I am using is shown in a photo below. I have also attached the values I obtained. Somehow, the values I am getting fluctuate quite a bit and seem to be an order of…
user16378
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Alkaline battery performance at -30 Celsius

I am making an IoT project and planning to power it with alkaline batteries. Their safety and low cost are really appealing. Their low discharge capability is not a problem. The batteries need to be able to supply 500mA to a boost converter, but for…
Bill Mahoney
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Options for getting 4.5-6V out of (mismatched) AA alkaline batteries?

I have a huge stack (400+ or so) of used AA Alkaline batteries (Duracell Industrial). Remaining capacity left varies anywhere between 0% and about 30%. I have no way of knowing which ones are really empty and which ones are at 30%. I've got a…
Tonny
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Standard/Specification for regular alkaline batteries

Where can one find the standard specification for regular alkaline AAA, AA, C and D batteries? I mean, I know that different suppliers must have different battery capacity/property but there must be some standard that regulates this market. Eg.:…
PDuarte
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What is the capacity of this battery (details in the body)

Can someone give me the capacity (in Ah) for this battery?
Sreenandan Balasubramaniam
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