Electrical discussion

[fairdeal]

and galvanic cells create DC directly.

Batteries are normally not considered to create DC. They store it.

is not a "battery" simply a series of galvanic cells ?

[boscoe99]

is not a "battery" simply a series of galvanic cells ?

Technically yes. Maybe.

The cell of a lead acid battery can receive and store electrical current. Straight DC or pulsed DC. Without it being provided with electricity in the first place however it has no electricity to provide.

There are galvanic cells that can be created which can provide a direct current output without there having been current introduced into the cell in the first place. It is this type to which I was referring as being able to produce and provide DC completely on its own. Maybe not practical for use in the real world but they can do it.

Can we now discuss that a AA battery is not really a battery at all?

[fairdeal]

Can we now discuss that a AA battery is not really a battery at all?

Likewise the other household types except the 9V.



I knew lead acid batteries had lead and lead oxide plates,

but not that critical detail of the manufacturing process:

a lead grid with a paste of lead oxides... Then, during the battery's initial charge (called "formation") the cured paste on the plates was converted into electrochemically active material (the "active mass").

[99yam40]

Can we now discuss that a AA battery is not really a battery at all?

OK , lets do that.
AA ,AAA, C , D etc. batteries are considered Dry Cell Batteries are they not?

Maybe not as they do have stuff leak out at times.

and then we have the rechargeable.

Ok after thinking a little bit, are they cells and not a series of cells making up a battery of cells?

[fairdeal]

OK , lets do that.
AA ,AAA, C , D etc. batteries are considered Dry Cell Batteries are they not?

they are certainly "called that".

I believe Boscoe's point is that the Dry Cell part is correct.

But it takes at least two cells to make a "battery"

Ever torn the steel casing off a 9V battery?

[boscoe99]

Cells and batteries, like most stuff in life, are not as simple as it would first seem. Unless to the Rodnut man, where everything is stupidly simple.

Is a lithium ion cell a dry cell? Is a ni-cad rechargeable cell a dry cell? I don't know for sure. I personally never thought of them as being one. Technically I suppose they are. The packaging generally won't mention it being dry or being a cell. It might say a AA battery.

Most cells create about 1.5 volts. If you buy anything with three or more volts I believe it to be a battery. A battery of cells.

Where else might be transgress today to keep life interesting?

[99yam40]

yes I have opened a 9 volt .
I would think that any person curious as most of us are on how things work would have to open one up just to see.

How many of you guys have opened up a battery pack for portable tools and replace some bad cells in them?

finding the correct cells to match the ones in it makes it almost impossible to get the pack to charge and discharge all cells properly

[boscoe99]

I am trying to work up the nerve to strike some old lithium cells with a shovel. To see what might happen. I am lead to believe that it might not be pretty.

Will someone hold my beer?

[pstephens46]

I am trying to work up the nerve to strike some old lithium cells with a shovel. To see what might happen. I am lead to believe that it might not be pretty.

Will someone hold my beer?

Can we drop off a building?

Here is stupid for you. Get some of those white tipped wooden matches. Scrape off the stuff on end. Maybe 10 matches total.
Take some threaded bolt material with a nut screwed on halfway to form a cup. Put the scrapings in the "cup". Screw another threaded portion down on top just till it touches. Drop on bolt end from top of house onto driveway.

[boscoe99]

Can we drop off a building?

Here is stupid for you. Get some of those white tipped wooden matches. Scrape off the stuff on end. Maybe 10 matches total.
Take some threaded bolt material with a nut screwed on halfway to form a cup. Put the scrapings in the "cup". Screw another threaded portion down on top just till it touches. Drop on bolt end from top of house onto driveway.

A real man would hold the contraption in his hand, against an anvil, while striking it with a hammer.

I like the fools that sit on an airbag and then have a friend activate it. Think ejection seat from an F18.

Obamacare will pay for the hospital visit. Maybe also disability for the rest of the life.

[pstephens46]

Everyone must be a little loopy today. Wonder what Rodbolt's beverage of choice was yesterday?