Batteries Definition and 464 Threads

My project is to create a circuit for a stroller that can store the mechanical work into electrical while moving around and with the push of a switch, use the electrically stored energy to assist the movement of the stroller. I’ve tried capacitors but it ended up not being enough voltage and I...

Conceptually this question makes sense to me I know a overcharged lithium battery will became unstable however with identical batteries except a different level of charge what would the properties of their combustion be? In depth conceptual, and mechanical explanations are always appreciated as...

I have a question what does create a electric filed inside coducting wire? And is it the same field trought the whole wire? Thanx for answers.

Is it feasible to recharge satellite's batteries utilizing a ground-based laser?

So, some time after getting a new car the batteries on my FOB died. So I went in and replaced them, two CR2016's was all that was needed (on top of each other in parallel). No more than a month later I noticed the battery felt like it was dying already (light not as strong, delay on the actions...

After watching a video on YouTube, I recently became interested in the dynamics and physic's of why we aren't using electrical powered planes instead of burning thousands of fossil fuels every day. After doing a bit of my own research, I found the problem. When we increase the weight, we have to...

https://electronics.howstuffworks.com/everyday-tech/lithium-ion-battery2.htm "Lithium-ion batteries age. They only last two to three years, even if they are sitting on a shelf unused. So do not "avoid using" the battery with the thought that the battery pack will last five years." Is this...

Hello everyone! I'm doing a school project where we are responsible for designing a dragster race car powered by a small electric motor (1.5 to 4.5 V) h it seems to be called MOT12 (which I don't know the meaning of, it would be helpful if someone helped me understand). We are allowed to power...

Homework Statement Find charge on 3 capacitors. Join two squares with one common side. At the middle of the common edge, place C3=6uF (micro-farad). On upper edge of left square, place C1=2uF. On upper edge of right square place C2=4uF. On lower edge of left square, a battery-10V and on lower...

Hey, so I tried to get a lot of Amps and primarly my tool are batteries, so I have 3 batteries that I have connected together in parallel (+ with the + and then - with the -) they are 1.6V Kirkland batteries that are all brand new. So when I took a machine I have to calculate the voltage and...

I previously posted the below as a footnote on one my posts on the Mechanical Engineering Forum and it was suggested I start this thread on the subject here. "PS On a general note about battery replacements. On my field GPS I use rechargeable batteries and always test them before recharging...

The Wikipedia article on alkaline batteries says that they operate at the expense of the oxidation of zinc metal to zinc oxide and the reduction of manganese dioxide to Mn2O3. Anode half reaction is written as Zn + 2 OH− → ZnO + H2O + 2 e−. However we know that metals reacting with water...

Hello. Say I have a high powered device that draws continuous 18A. 3.7v And I have one 3.7v 3500mah 18650 with a maximum continuous discharge of 10A, I know the battery will overheat and will most likely get damaged or shorten its life, or even catch fire. But If I have another battery (same...

Homework Statement Three identical batteries are first connected in parallel to a resistor. The power dissipated by the resistor is measured to be P. After that, the batteries are connected to the same resistor in series and the dissipated power is measured to be 4P (four times larger than for...

Hey guys So lately, I've been interested in circuits. I am good at maths, but my physics isn't as good (hence why i signed up to ask questions). So I have a question. Imagine you have a simple circuit, like below: Simple circuit, 1 bulb and X amount of batteries. So my question is, how many...

Homework Statement Number 9 page 38 Sterling What is the result of connecting two identical storage batteries in parallel in a circuit?[/B]Homework Equations Q/V=C V=I R The Attempt at a Solution The solution is that the voltage is the same but twice the total charge compared to the Circuit...

I'm trying to figure out how to calculate how much energy is stored in a battery between certain voltages. I know capacity is traditionally calculated by multiplying amps drawn by nominal voltage by time, but this seems like an approximation because voltage decreases as the battery is...

I'm currently working on combining energy storage systems like flywheels and batteries to balance consumption/regeneration. I've been looking at using an optimal control scheme so that a cost function can be tailored to our wishes. I'm curious about what other people in this field have been...

Since you can add energy to a battery then extract it later, considering mass energy equivalence, it should be more massive, no? Somehow that doesn't make sense though.

So I've been learning how batteries work. What I learned is that a battery consists of 2 pieces of metal both with different electronegativities. These metals react with an electrolyte. One metal (called the anode) is oxidized and has its electrons removed, leaving behind a positive ion which...

So I understand in a battery that an anode (such as zinc) and a cathode (such as carbon) are separated by an electrolyte. I also understand that the electrons want to flow into the cathode, but can't get to them, so as soon as a conductor connects the two terminals, current can flow. However...

So, I'm a little confused on how batteries work. I understand they convert chemical energy into electrical energy. I also understand that the battery consists of an anode and a cathode with an electolyte in the middle to force the electrons from the chemical reaction to have to follow the wires...

I've been reading about this a bit and stumbled across something that said its desirable that the heat source not be something that emits a lot of gamma radiation. Other than hazards to a technician, does this have any effect on the device its being used on? Why would it require extra shielding...

Hi all, I'm looking for a high capacity battery to store my solar energy. The capacity I'm looking for is between 150 kWH - 300 kWH per unit, just like the battery used in Tesla cars. I'm planning for a 2.250 KWH system. The average consumption of my house is around 10kWH per day. with a...

Hi For a 1200 watt tool, there are 20, 40 and 60 volt batteries, and in the case of a 2 amp hour (7200 Coulomb) battery, using energy = charge x voltage gives different values of stored energy for each of the three batteries, which are 144000, 288000 and 432000 Joules. Is this correct? Thanks

After so many cycles, rechargeable Li-ion batteries powering electric cars go bad. This I know. I am wondering what goes bad? Is it the electrolyte, the electrodes, or both? And in general, could it be possible to take these degraded battery components and fix them? Thanks in Advance! Mike

Homework Statement I want to find the charge and potential drop across each capacitor Homework EquationsThe Attempt at a Solution I know both the capacitors are in series and hence have the same charge on them. However I don't know how to calculate the potential drop across the capacitors...

Hi all, My name is Jesse and I love renewable energy and finding ways of beating coal. Right now Solar Photovoltaic energy competes with coal in sunny areas during the day, but at night, you need to store the energy from solar and it's not worth it due to the cost of storage mechanisms (might...

Hello! I have a good question to about the possibility of making a descent power output on batteries on tesla model vehicles s and 3. The batteries that are 3 quarters inch long placed in a cell at the bottom of those vehicles. It costs 4 to 5 thousand to replace the cell if damage or not...

It seems that the batteries installed at nuclear power plants would have been one of the largest scale applications of battery technology prior to the development of battery storage stations for utilities. I'm wondering what kind of technology they use(d) and what kind of lifespan, capacity, and...

If a small voltage - say 1V, is applied to the negative terminal of a 1.5V alkaline battery (although I don't think the type of battery matters?) will this create a current between the 1V and the negative terminal until the charges are somehow balanced? If not, what will this situation do to the...

anyone have good sources for quality lithium (LiFePO) batts in the 24v 50Ah size? i need something of that size in something like a car batt form factor. i did some gooling around, prices vary widely, i can't ascertain if the vendor makes a quality product, and the types of lithium batts are...

I am a high school senior caught between these two fields. they both seem very exciting and I am not sure which would be better suited for my interests. In high school, my favorite subjects have been Physics, Chemistry, and Computer Science. I am interested in working to develop: -more...

Take the following diagram of 4 1.5V batteries connected in series to creat and net voltage of 6V (the numbers are of no significance here). If we were to short circuit the system by connecting battery 1 to battery 4 (or run the current through a load), wouldn't there be electrons traveling...

What do we mean by a discharge voltage of a material ? and is it good to have a low one or a high one ? Thank you.

Homework Statement Find currents I1 and I2 in the following circuit: Homework Equations I know I have to use Kirchoff's loop rule but I am not sure of the current going through the 5 ohm and 8 ohm resistors, is it just I1 and I2 respectively? Also do I incorporate the large loop at the...

< Mentor Note -- thread moved to the EE forum from the Homework forums since it is a more general set of questions > So, we are going into Kirchhoff's Laws in class, and my entire understanding of circuits, which took me a while to form, is again falling apart. A physical understanding is...

<Moderator note: Thread moved from technical forums hence no homework template is shown> A circuit is constructed with six resistors and two batteries as shown. The battery voltages are V1 = 18 V and V2 = 12 V. The positive terminals are indicated with a + sign, The values for the resistors...

Batteries are connected in parallel. Multimeter shows: 1,5V AND... "0.12A" regardless of battery number. Volts stay the same but should not Amps add up in parallel? "0.12A" with 4, 5 or 6 batteries... Details: Amps measured correctly by closing the circuit with multimeter probes (bulb lights...

Hi all, This is Omar undergraduate electrical engineering student. I am doing my senior project on powering data collection sensors( 3- resistance temperature detectors and 1- pressure transducers) of autoclave by using thermoelectric generator!. the sensors are connected in // to a 24V common...

Homework Statement [/B] Q: What is the power dissipated by R1? Homework Equations Ohm's law: V = IR Power: P = VI, I2R, V2/R Kirchoff's circuit and voltage laws The Attempt at a Solution I assumed the currents were I1 traveling rightwards from the top battery, I2 rightwards from the...

Hello, I was reading a previous thread that is now closed. What I'm curious about is a simple wiring schematic. I want to charge a battery on my trailer while it's hooked to the truck from the trailer 7 pin rv connection. The rv connection has a 12v hot all the time wire that I could use to...

Hello I drive for a truck company and am getting tired of being charged for idling my truck to keep my batteries from depleting. I have a 2000w inverter now that's hooked to the truck. I had the idea of putting a few deep cycle batteries and charging them somehow with truck inverter or outlets...

When 5 batteries are connected in parallel, how can I find the equivalent current that it gives? What is the formula for calculating that?

There is an explanation of how a battery works that says that in a battery circuit, the electrons do a complete loop and, given enough time, they can return to their starting point. This theory says that when the electrons arrive in the positive terminal and they lost all of their potential...

Homework Statement The figure represents a part of a circuit, and the potential difference between the f and d is 12Volts, depending on the information shown in the figure, determine: 1-the reading of the Ammeter 2-the value of (Vb)₃ 3- the potential difference between (c , b) Homework...

Hello, I wanted to ask a few questions regarding magnets and batteries, and EM induction. First off, could I use batteries to replace a low voltage dc power supply, like say 2 V or so by connecting the ends of the battery in series to a circuit? As an extension, could I connect two batteries in...

Homework Statement Homework Equations Kirchhoff;s first and second law, V=IR The Attempt at a Solution Tried the question as follows: V= 24/(2+6+4) = 24/12 = 2V (pd from top cell) then did 2=4 I3 therefore I3 = 0.5A and then 2 = 6I2 I2 = 0.33A and I1 = 0.5+0.33... =0.83A?

Homework Statement You have a 9V battery with an internal resistance of 1.5 ohms. If a 3 ohms load is connected to the battery, how much current will flow through it? When the 3 ohms load is connected, what potential difference will an ideal voltmeter read across the battery's terminals...