
Battery life: 2xAA or 4xAAA - which is better?
2015年8月15日 · 2xAA stores a little more energy than 4xAAA. But it is not that simple. A fresh alkaline battery will put out 1.6V, and discharge down to around 1V or 0.9V over its useful life.
2xAAA battery => 3.3v/250mA step-up converter with logic-driven …
\$\begingroup\$ Anindo Ghosh: Thanks for that extensive information - definitely filed away :) Once I read that EMI would be an issue (adding shielding inside the constraints of the compartment I have to work with would be a little difficult), I did some more research and have found an alternate solution (the link can be found at the top of my question).
voltage - Electrical Engineering Stack Exchange
2021年12月12日 · Stack Exchange Network. Stack Exchange network consists of 183 Q&A communities including Stack Overflow, the largest, most trusted online community for developers to learn, share their knowledge, and build their careers.
How many amperes can an alkaline AA battery supply?
2021年6月15日 · In response to your comment to @winny's answer: Is impedance of 120 m-ohm equals to R = 0.120 ohm, and so U = 1.5/0.120 = 12.5 A and so the current of this battery is 12.5 A?
Running 3-4 red LEDs on 3xAAA batteries efficiently
2021年11月15日 · \$\begingroup\$ I have a cheap flashlight with 24 white LEDs in parallel and powered from 3 AAA cells. Obviously the forward voltage of the LEDs are matched and the cheap batteries that are half filled with rice are the current limiter.
overheat - Can I run a 2xAAA battery device on a 5 volt USB device ...
2020年11月8日 · Stack Exchange Network. Stack Exchange network consists of 183 Q&A communities including Stack Overflow, the largest, most trusted online community for developers to learn, share their knowledge, and build their careers.
AA battery vs AAA battery - amperage and voltage
2017年11月12日 · I am testing the RPM values of a 1.5-3V motor with AA and AAA batteries. When I attached a dual battery holder with two AAA batteries to the motor, the motor spins almost twice as fast as when it is
How many watt-hours in two AA cells?
2018年10月26日 · If I wire 2 AA cells with a nominal capacity of 2 Ah and a nominal voltage of 1.5V each in series, then I'll get 3V with 2 Ah, right? Is that, thus 6 Wh? If I wire them in parallel, I get 1.5V wi...