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Batteries
Batteries are sources of chemical energy that are used in circuits to provide electrical energy for a wide range of useful devices. Any questions and answers regarding batteries or other power supplies would be welcome here.
4,818 Questions
How do you charge a battery on a 1993 BMW 740 i?
The easiest way is to use the jumper post in the engine compartment, near the windshield on the right (passenger) side. You can also lift the rear seat and attach the cables directly to the battery.
What do you do when a battery leaks inside a charger?
There are two options. You can think whether you are going to throw it or wipe carefully the leaked area. make sure you don;t touch the liquid.
How do you build a transformer using a battery charger?
Ni-Cd , Ni-HM and other rechargeable batteries are in massive use now a days.
Let me not describe the use , importance and bla bla of the rechargeable batteries.
What we are going to talk about here is how to make simple battery charger circuit to recharge your rechargeable batteries.
Making a battery charger circuit is very simple , Simply step down the mains voltage using a step down transformer and convert the current into DC and stabilize it using a bridge rectifier circuit.
But you might not want to use a transformer in your circuit to maker your battery charger circuit small and handy.
If you don't want to use a a transformer to step down the mains voltage then you can also use a resistor and a capacitor to step down the voltage and stabilize it.
And you can see the circuit diagram of a battery charger below which is not using any transformer. Battery charger circuit diagram:So here is a simple battery charger circuit diagram:
Click on the image to enlarge it:
Battery charger circuit diagram
You can see the values of the components used below:
R1: 56 giga ohms resistor
R2: 220 Mega ohms resistor
C1: 105 Kilo pico farad , 250 voltage capacitor
D1: IN 4007 Diode
D2: Light emitting diode indicator
D3 : IN 4007 Diode
If you use the values of the components stated above the circuit can recharge a 3 voltage rechargeable battery , You can change the value of R1 and C1 to get recharge battery of more voltage.
Probably. Put simply, the mAh rating is the size of the proverbial 'gas tank' the battery provides for your device. The larger mAh just means a larger 'gas tank'.
To be more precise: the unit mAh stands for milliamp-hours; it indicates that a completely charged battery contains enough power to discharge that amount of current for one hour. For example a 680mAh battery theoretically contains enough power to produce 680mA of current for one hour (though in reality, it might not be possible to discharge it that quickly) or 68mA of current for ten hours.
How many rechargeable AA batteries do you need to make 9v?
I believe that AA batteries are rated at 1.5 volts each, so if you were to take 6 of them and wire them together in series that would produce a circuit that's pushing 9 volts.
But recharge AA batteries are only 1.2 volts per unit so a little lower voltage will be the result. I think most devices will still work on the lower voltage. Also these batteries will never last as long as the regular dry cell.
Your battery is probably fully charged and the brief flash of the icon is just the charger "topping it off".
There is nothing to fix, as nothing is wrong about this charging behaviour.
If your cell phone will not charge could this be the battery or the battery charger?
If your cell phone will not charge it could be the battery or the battery charger. You best way to find out is to try the battery charger on a similar phone and see if it charges the other one.
A few possilbilties, the battery is NG, the charging system isn't working properly or the vehicle has a draw that shouldn't be there. An example of a draw that shouldn't be there would be like a trunk light that stays on after you shut the trunk lid.
Do rechargeable batteries ever wear out?
Rechargeable batteries do wear out usually after their self life or prolonged use. Depending on how long you have had that particular battery and how many times it has been recharged determines how long they will last.
What is the purpose of the voltonic pile?
The voltaic pile was the first electrical battery that could continuously provide an electric current to a circuit. It was invented by Alessandro Volta, who published his experiments in 1799.
Would frequent usage of overdrive mode affect the life span of the batteries?
Overdrive requires more power and decreases the life of a battery so avoid overdrive to increase the battery life.
Who are the parent company that manufacture Energizer batteries?
The parent company that manufacture Energizer batteries is Energizer Holdings. Energizer Holdings is based in Town and County, Missouri and was founded in 1986.
What is the effect of voltage in water from batteries?
The effect that you get when you apply voltage from a battery to water is bubbles. the bubbles are caused by the hydrogens and oxygens seperating. to get more bubles there are a number of things you can do. 1st if you add salt to the water it will bubble more as well if you attach two 9 volts together and add the salt you get even more bubbles and the last thing you could do is rap your wire around graphite rods which you can get out of pencils if you feel like shaving the wood off but any way i hope i answered your question.
Are battery cables supposed to be hot?
Battery cables are not supposed to be hot. Cables may become hot if there is too large of an amp draw, meaning there is a problem that needs attention. yes
yes
Where may a person purchase battery powered VHF radios?
Both Amazon and Ebay are great places to find, and buy VHF radios of all price ranges. They offer customer reviews to help make the decision easier. Outdoor eyes will also help choose the right VHF radios.
Why is a flashlight called a flashlight if it does not flash?
The origin is the fact that early batteries were so weak and the current draw of the lamp was very high. So could only turn the flashlight on for an instant before the batteries would wear out....hence flash of light. Who says flashlights can't flash?! Mine flashes. It's true. There's a "flash" button. you guys are gay nerds
