Came back a few hours later to test the voltage you d find that the one on the floor will show a lower voltage than the one on the shelf at least until they re both at a similar temperature again.
Should you put a car battery on a concrete floor.
The difference between concrete and cement but don t take our word for it.
Ive been testing this to see if this is fact or myth with a agm battery and a lithium.
Naturally if a topic or concept is not very well understood people can fall prey to all sorts of rumors and myths that spread from generation to generation and the question of a car battery draining on a concrete floor is one of them.
Batterystuff knowledge base article answering the popular question about battery storage.
Not only that but that the battery would not take a charge after this occurred.
So today you can put your battery on a concrete floor for as long as you want.
Never store a car battery on a concrete floor or a dirt floor for that matter.
Before we dwell into the details the myth has some historical basis.
In the past yes batteries stored on concrete floor would loose charge because of the free electrons grounding themselves outside of the battery.
Apparently he is under the impression that putting a car battery on a concrete floor would drain it.
And here s the interesting thing clay.
Always store a battery elevated off the floor on something that can get air movement around it.
The design of modern day batteries includes a hard plastic shell that eliminates the intake of moisture thus making the garage floor a great place to put your car battery.
And if you re curious see.
The cooler the temperature the slower a battery s rate of discharge.
Mythbusters battery vs concrete floor.
And because concrete is often cooler than its surroundings leaving a modern battery on a concrete floor might actually make it last longer.
Concrete also conducts heat far quicker than wood.
So if you took two identical batteries placed one on a concrete floor and one on a wooden shelf.
If you put a used battery on a garage floor and leave it there in unheated conditions there s a good chance that it may fail to start the car when replaced.
Modern batteries are fully insulated and do not experience this problem anymore.
New batteries and ones in good condition are almost immune to such temperature issues.
Is it bad for your battery.