Questions tagged [alkaline]

In EE context, the term is related to alkaline batteries

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2answers
46 views

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 ...
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3answers
236 views

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 ...
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2answers
94 views

Do electronic devices require more current when alkaline batteries goes low?

I know that alkaline batteries' voltages go down when they're at low charge (from 1.5V~1.7V to 1.0V). For typical electronic devices like remote controls or bluetooth mouses/keyboards (that uses two ...
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2answers
256 views

Max Discharge Rate of typical Alkaline Button Cell Batteries

I have simple circuit that has some led diodes, 3 LR41 batteries and no resistor. By looking at this website, it seems their capacity is about 30mAh. But I couldn't find anywhere the max discharge ...
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2answers
881 views

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, ...
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1answer
76 views

2xAA + 5V Boost Converter: Unexpectedly Low Current Output [closed]

I'm quite new to electronics, and decided to make a mobile powerbank for my Raspberry Pi Zero / Phone out of 2xAA Batteries and a 5V, 600mA boost converter with USB output. However, I'm getting an ...
-1
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1answer
80 views

Help me out with DC - AC inverts! [closed]

so ive got quite a bit of questions about these DC - AC converters, so ive got an inverter wich converts 9V DC alcaline battery to around 240V AC output, my questions are, is this circuit realy ...
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2answers
724 views

Can a diode prevent backwards current flow from a constant current source?

I'm trying to make a AA battery replacement battery for a vintage computer because its actual battery has gone bad. Its of the NiMH type and I'm pretty sure those are charged with a constant current. ...
0
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1answer
97 views

Is there a safety issue with running a AA alkaline cell through 0.3 ohms?

I'm running an Electricity merit badge session for my son's boy scout troop. One of the requirements is to make a simple electromagnet. For this, I was going to have the boys take a 12 foot length ...
1
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1answer
114 views

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 ...
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2answers
354 views

what is the difference between coin battery and alkaline battery

i'm quite curious with coin battery and alkaline battery. I have submerge 2 coin battery into the water and the battery short circuit and damaged after a while. While i put 2 alkaline battery into the ...
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1answer
154 views

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 ...
2
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2answers
441 views

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 ...
0
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1answer
253 views

Wave Solder an Alkaline Battery on a PCB (any concerns)? [duplicate]

I have a specific application that requires a board to be powered by Alkaline batteries and would like to solder direct to the PCB using wave solder vs. hand solder (need to consider a high volume ...
3
votes
1answer
316 views

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 (...
-4
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2answers
2k views

What info is needed to calculate AAA battery life? [closed]

I have a flashlight that uses (9) 10mA white light diodes and they are placed 8 in a circle and 1 in the middle. The flashlight is powered by (3) 1.5v AAA batteries. (Here are the the battery details)...
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1answer
127 views

Rc car, power supply instead of alkaline battery?

I have an RC car which works with 8 AA alkaline batteries, which make a total of 12 volts. I want to replace the battery with a 12v 2A power supply (batteries cost away too much...) Do you think the ...
2
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4answers
2k views

Proper Way of Powering a Circuit with 2 AA Batteries [closed]

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 ...
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2answers
954 views

Powering GSM Module from 2 x AA NiMH or 3 x AA alkaline batteries

I'm trying to power a GSM modem from 2 AA NiMH batteries in series, and wonder what my options are. Main consideration is that it needs to be USB rechargeable, so I only have 2 batteries to work with. ...
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1answer
365 views

Can a 12v 27a alkaline battery damage? [closed]

I've looked inside my garage remote control and I've discovered a 12v 27a battery. The voltage is very low, but the ampere are many, can it damage a person when is fully charged? Thanks
7
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1answer
25k views

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 ...