I am looking for a rechargeable battery between 1 and 1.5 volts that can provide this voltage for the longest amount of time (most mAh). Any suggestions? Thanks.
I know that batteries don't lase as long when they are used in a cold environment, but why is that? For normal conductors resistance decreases as temperature goes down, so shouldn't the internal ...
1) I have 6 4.5V 20mA LEDs and have connected them to a common 9V battery. Doing this I made 3 parallel circuits with 2 LEDs in each. Now, I see that most pages that describe LED circuitry say that ...
I'm coming from a computer science background, and will be writing some software to automate battery testing. I have background in math, but little to none in physics or electronics. Please consider ...
is the resistance in ten meters of copper wire too high to use in a circuit powered by AA batteries?
I have a wireless security system at home, and the wireless node is too far from the receiver. I was thinking that I could splice about 10 extra meters of wire into the existing line to move the node ...
In one of the answers on this site, I found link to this project. That article mentions internal resistance of batteries and cells. Where can I find data about common ranges of internal resistances ...