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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
What are the percentage of lead acid and suffric acid on one car battery?
Around 65% distilled water and 35% sulfuric acid.
Does a new car battery need to be charged?
No. If it needs charging then it has been in storage too long and is actually an old stock new battery. Take it back and ask for a replacement.
Why are most chargers very inefficient?
Voltage must be changed by a transformer, and the alternating current changed to direct current by diodes. Each step has a loss of energy.
What are rechargeable car batteries?
a car battery that can be recharged. All automobile batteries are rechargeable.
When jumping a dead battery are the positive terminals connected last?
No, always connect the negative last.
Why is a complete path required for the current to flow?
If there is no complete path, excess electrons will very quickly build up at some place, and repel further electrons - no more current will thus flow.
Which is better a 6 cell battery or a 9 cell battery?
"Better" doesn't really say enough in this situation.
I'm assuming this is about a laptop that can be fitted with either a 6-cell or a 9-cell battery - in which case the 9-cell will let you run longer on battery, but will usually stick out a bit and make the laptop both bigger and heavier.
So 9-cell is good for runtime, but poor for carrying it around. Your choice.
Check battery status for your laptop?
To check the status of your laptop, you look at the bottom of your laptop for the battery.
Look for the button near a row of LED lights.
Once you've found it, press it to see how much charge it has, but to check the health status of your battery press it and leave it pressed until the LED lights blink. The less the lights that turn on the better.
What does an ohmmeter measure and explain how it is used?
An ohm-meter measures the basic resistance of any circuit; its ability to conduct electricity. Its basic use is for the equation "E/I*R" to explain further about how it is used you would need an electronic background to comprehend its use and that equation's use in electronics.
Is the Kodak play sport zx5 battery the same as the regular playsport battery?
In the play sport zx5, the battery isn't accesible to replace, you can't use the klick 7004
What is the difference between a 2.4 v and a 3.6 v cordless phone battery?
The 2.4 v battery doesn't have as many volts so the phone has less battery time, so you need to charge it more often, than the 3.6 v battery.
Hope I helped you!
What type of electrical energy does a lemon battery produced?
DC, with a small open-circuit voltage, and a relatively high internal impedance
compared to a sensible battery.
