Airplane Batteries

There really isn't space to clean the sludge and if you
invert the case, you just dump the sludge into the plates.
I don't know of any batteries with a drain/cleanout plug on
the bottom. Battery recyclers rebuild batteries by cutting
the top open and washing the plates and reinstalling them
into clean cases. But the plates are worn and the life of
the battery would be shortened. I don't think any aircraft
batteries are rebuilt this way, usually the metals are
melted down and new batteries manufactured. NiCad batteries
use individual cells and those cells can be swapped into a
case and the cells are remanufactured under careful
controls. Of course NiCad batteries used in KingAirs and
jets cost as much as a small car.


--
James H. Macklin
ATP,CFI,A&P

--
The people think the Constitution protects their rights;
But government sees it as an obstacle to be overcome.
some support
http://www.usdoj.gov/olc/secondamendment2.htm
See http://www.fija.org/ more about your rights and duties.


"Montblack" wrote in
message ...
| ("Jim Macklin" wrote)
| But all batteries wear out because lead flakes off the
plates and collects
| in the bottom of a standard lead/acid battery [that's
why the plates do
| not extend all the way to the bottom of the case, the
space is there to
| collect lead sludge. When the sludge touches the plates
they short out
| and the cell is dead.]
|
|
| Would sucking out the sludge/flakes, once in a while,
extend the life of the
| battery? Drain (filter) back any acid/water into the
cells.
|
| Has anyone tried this?
|
|
| Montblack
|

"Jim Macklin" wrote

Of course NiCad batteries used in KingAirs and
jets cost as much as a small car.

Anyone ever seen a cutaway or the real insides of one of those big Nicads
used in Jets? I sure would like to see how they are made.
--
Jim in NC

Each cell is a metal case with terminals. They are slide
into the larger case and connected with bus bars to complete
the circuit.

http://www.saftbatteries.com/020-MS_..._advantage.asp

http://www.saftbatteries.com/020-MS_...cteur=Aircraft

--
James H. Macklin
ATP,CFI,A&P

--
The people think the Constitution protects their rights;
But government sees it as an obstacle to be overcome.
some support
http://www.usdoj.gov/olc/secondamendment2.htm
See http://www.fija.org/ more about your rights and duties.


"Morgans" wrote in message
...
|
| "Jim Macklin" wrote
|
| Of course NiCad batteries used in KingAirs and
| jets cost as much as a small car.
|
| Anyone ever seen a cutaway or the real insides of one of
those big Nicads
| used in Jets? I sure would like to see how they are made.
| --
| Jim in NC
|
|