> What is the difference between a normal car battery and a normal rechargrable battery?

What is the difference between a normal car battery and a normal rechargrable battery?

Posted at: 2015-01-07 
Car batteries are rechargeable, using the alternator to keep the battery up to its maximum level. When you start your car, it takes a lot of current, which drains the battery, but then the alternator replaces this current over a period of time.

The other type of rechargeable battery is usually a dry cell, meaning it has no water or acid in it. Like rechargeable flashlight batteries. These are designed to be recharged when the battery gets down low, and usually, means the battery is drained almost completely before the re charge takes place. This type of battery has a life of recharging, depending on how low it is allowed to get. It used to be, that if a rechargeable battery was charge BEFORE it was fully drained, it would destroy its ability to be re charged. In other words, if a person drained the battery down half way and THEN charged it back up, it would then not be able to use its full power. But new batteries are able to be recharged just about any time.



There is also a Marine Battery used by boats, which allows slow, steady draining of the battery, and is recharged when it is drained. These do not put out huge amounts of current, but steady current, whereas a car battery, puts out a strong surge when needed, to start the car, and then supplies a slow steady current, as needed, for running options, such as radio, CD player, windshield wipers, and so on. But these batteries are constantly being recharges, while the vehicle is running. So what is taken out, is replaced, almost at once. Not exactly at once, because this could be TOO much current, and burn out circuits, but it will replace it over a short time.

This is why, if a person drives a car a block or two, shuts it off and then restarts is, and keeps doing this, the alternator does not have enough time to recharge the battery for each start, and soon, it will drain the battery too low, and kill the ability to start the car. At which point, the battery will need to be recharged, with a charger, or get a boost from another vehicle.

A car battery is rechargeable.

Car batteries use an electrochemistry based on lead, and sulfuric acid. They are inexpensive, but very heavy, and the acid is quite dangerous.

Your typical modern phone or laptop battery uses a lithium-ion electrochemistry, which is lighter, and safer to handle, but more expensive.

What are you talking about. All vehicle batteries are rechargeable. Never heard of a battery that is not rechargeable.

They are all rechargable