U.S. NAVY THEORY OF LEAD ACID STORAGE BATTERY TRAINING FILM 25634

Great video...thanks

A brilliant introduction to chemistry. The Armed Forces had a great education department.

I need to watch this again and take notes.

Loved it

thanks for posting. i wonder why i didn't get to see this one when i went thru sub school. during indoctrination on my first sub all i was taught about the ships battery was that if there was a fire in it's compartment all i was to do was take the rubber coated fire extinguisher and turn it on and throw it in to the battery compartment and slam the door. (it wasn't really a door it was actually a hatch in the deck.)

Please tell me anyone about lead acid battery book to excercise

Excellent explanation 👌👌👌

A useful film for anyone who owns any kind of motor vehicle or heavy equipment that uses a lead-acid battery. I knew a little about how car batteries work, but not the fine details of the chemical reactions. It should be noted that, at every charge/discharge cycle, the plates shed a little of the metal, which gradually precipitates to the bottom of the cell. Most lead-acid deep-cycle automotive batteries, such as are used in golf carts, have only about 500 full cycles of useful life: after this, the plates are "worn out", i.e., not enough active lead and lead oxide remain on the plates for the battery to hold sufficient charge to make it useful for a vehicle. Or, so much of the plate material has fallen off the plates, that the "sludge" build up in the bottom of the cell short-circuits the plates, producing a "dead" battery that won't hold a charge at all.

now I know

I don't think they should have declassified this video and tell potential enemies that our submarine batteries use a 1.250 specific gravity reading

You

These military training films are really good for introducing people to the basics, or even advanced, info about the things they will be working on in their civilian job. They are designed to get people who know nothing about a subject, or fairly knowledgeable, up to speed on a subject where they will be working without the "know nothings" feeling, over whelmed or the knowledgeable from feeling it's a big drag so they stop paying attention. I wish I had a complete library of them.

Many thanks to USA Navy. I have some of there books, translated to portuguese, and they are so clear as this movie. The best educational material i know about electricity and electronics.

Brilliant, well explained.....

I use to buy and sell battery's for solar storage from 2nd scrap metal yards in the 90s
To quickly test if any were still usable I'd check with a 12v test lamp also check the taist of the acid off a small stick.
Citric taist was a good indicator of a good battery..
Didn't seem to hurt me but I rinsed my mouth out regularly and made sure the small amount I did get in my mouth didn't contact my teeth..

What's with the annoying time meter in the bottom of the screen in all your films? That stupid time clock sometimes covers up text or illustrations.

Sir please tell me the minimum and maximum weight of battery cell and also tell me how much liter acid water are in cell

I intend to try and recondition my failed solar batteries and this video was essential viewing. I had to watch it twice to get the full jist of it because my previous understanding was at odds with this explanation.

Very good educational video!

Why am I watching this at 1 in the morning. My head hurts. I remember watching this in my early military days. We would top up the electrolytes with distilled water on a weekly basis.

To all democratic technical forces .., undemocratic Bambo 🖐️

To all democratic technical forces .., undemocratic Bambo 🖐️

Bad memories of diving the battery well as electrical officer on SSBN 620. Good training film though.

Very good explanation thanks for sharing

When this film was recorded in 1940s there were 102 known elements to day in 2022 there are 118 known elements.

We should be making more educated films like THIS & NOT reality tv. This is WHY our ancestors were so smart & never went to college.🤔🇺🇸

You folks have some of the best videos. When I was a kid in the 60s I remember being so bored in school by stuff like this... Now I cant get enough of it. Thanks for what you do!

🏆🏆🏆🏆👏👏👏👏👏

I was a toddler, in the first grade, when this film came out!
Thank you for it

When I was in high school some 50+ years ago, I worked in a full service gas station (as most were at the time). One of the services was to remove the caps on the car batteries to check the fluid levels. Often it would be so low, the tops of the plates would be exposed. We had a water jug that had a spring loaded valve in the spout. The spout would be inserted in each cell and the water would flow into the battery until it reached the fill line.

I performed that action hundreds of times, but never really knew why plain water would keep a battery working.

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The chapters in these videos make it harder to navigate the video on an iPad: As often as not when one tries to move 10 or 20 second see one ends up moving by chapters. Backing up to go over something can be an exercise in futility.

Excellent video learned a lot

remember when you could maintain something?

before nuclear physics took off people were informed

So since i don't see sn exact date this video was produced and because it's talking about lead acid submarine batteries I'm assuming its during ww2. When the narrator describes an atom I noticed he did not mention the neutron and this is a unique piece of history here. Despite the neutrons discovery in 1932 it was not as widely accepted as it is today. "On 29 December 1934, Albert Einstein was quoted in the Pittsburgh Post-Gazette as saying, “There is not the slightest indication that [nuclear energy] will ever be obtainable. It would mean that the atom would have to be shattered at will.” This followed the discovery that year by Enrico Fermi that if you bombard uranium with neutrons, the uranium atoms split up into lighter elements, releasing energy." which eventually led to Einstein signing the letter sent to President Roosevelt warning him of Atomic weapons to come and urging him to invest in a program. Because of how secret squirrel the Manhattan program was nuetrons were not widely taught or twlked sbout in the United States during the war but late 1945 couldn't get people to shut up about them. I just thought that it's cool to see that.

Amazing we're still using this archaic technology despite have supercomputers in our pockets

It is unbelievable how detailed this old video is. It has all the information I needed to know in detail. No modern video I could find that would beat this

so amazing information thanks you sir

Love these videos

Where to access bureau of ships manual chapter 62?