Question by theDreamSurfer: Which is the best battery recharger out today?
Need a one where the batteries hold the charge longer. Most charge up fast but dont last long and dont hold the charge long.
Need suggestions. Thanks.

Best answer:

Answer by ismarelio
wel the radishaq recgaregeble baterries are pretty good and so are some panasonic rechargeable batteries

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Question by somegirl251: What are the waste materials of rechargeable batteries and alkaline batteries (non-rechargeable batteries)?
I don’t think there are any waste materials in rechargeable batteries because they last forever but I don’t know about non-rechargeable batteries.

Best answer:

Answer by ╊━━ 丂んﾑズｲﾉ 丂ﾑ尺ﾶ乇ﾘﾑ ｲん乇 ワ尺乇乇刀 ワロ乇ｲﾉﾑ ━━╉
I would say that the juice inside the batteries is wasted….

Good luck!

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Question by SemDog: Why does my Kodak C713 camera only work with the batteries it came with?
I’ve tried putting other batteries in it but it doesnt work. If i mix one new battery with the kodak battery it works but has very little tim to be on before it shuts off. Any idea what the problem is?

Best answer:

Answer by Kessaka
If you have the cheap ordinary alkaline batteries, they probably are overloaded by the power the camera needs. Right now, I have lithium batteries from Energizer. They are the longest lasting batteries in the world. I didn’t have to change my batteries for 4 months! Those batteries last up to 7x longer than the regular alkaline batteries! They are kind of expensive ($ 8) but they are so worth it. I also have a Kodak too btw.
-Kessaka

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Question by gqbebejai: Is it time to replace my flash light if one of the batteries is leaking battery acid?
The battery is in the flash light for a long time. I believe the battery acid is leaking from its shell. Is there a way to remove the battery?

Best answer:

Answer by qreusjorj
You should just be able to remove them both the normal way. Sometimes the acid can rust out connections. I’d just try to wipe it clean and try new batteries and if it works, save the money, if not then you’ll have to get new.

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Question by ipygmalion: What is the effect on skeletal remains from battery gasses?
Submarines of the past were electric driven when submerged, supplied by battery power. In accidental sinkings, or otherwise, the gases are corrosive
and metal destructive.

What is the effect on skeletal remains? Consideration of retrieval years later as in discovery of a previoiusly unknown location with the knowledge the crew is still inside.

Thank you
The midget submarine of Iwasa Naoji and Sasaki Naokichi was buried at the Pearl Harbor
Submarine Base as landfill toward end December ’41 with crew inside.
See note #5 at bottom of the page: http://www.combinedfleet.com/Pearl.htm

Iwasa, command leader, at top of painting photo.
photo #54302 sub prior to burial:

http://www.history.navy.mil/photos/sh-fornv/japan/japtp-ss/mdg-a-2.htm

.http://www.history.navy.mil/photos/images/h54000/h54301.jpg
At the lower right is a ship. From the bow at the two o’clock position,
across the tongue, is the sub burial site to be. [photo ca. 1940]
“It [submarine] was rediscovered in 1952, but reburied at the same place because chlorine gas had eaten away all its contents. The remains of the crew are still inside.”

Best answer:

Answer by carbonates
I think that unless the remains are in a closed compartment where the batteries were located they are likely to be unaffected. It seems likely that bulkhead hatches would have been secured prior to the sinking, but implosions, leaking valves, and other damage might have opened those compartments to the sea.

The real problem is probably not the gases, but the acid contained in the lead-acid batteries. Under some conditions this acid is likely to leak from the batteries and if confined, would affect the compartment. However, if there is enough water to dilute the acid, it is likely to have very little effect more than a few feet from the batteries.

Seawater has a pH of about 7.5-8.5, so it is slightly alkaline, and contains many salts that act as buffering agents, so where there is any circulation of seawater at all, the acid is unlikely to have had much effect on anything.

http://www.biosbcc.net/ocean/marinesci/02ocean/swcomposition.htm

You don’t mention the time period that the sub has been down, so it is hard to speculate on what condition remains would be in. Marine organisms are likely to have taken a toll. The relatively recognizable surfaces visible on the wreck of the Titanic are probably only that clean because of the extreme depth and near-zero bottom temperature.

Here is an interesting article on submarines as a class of archaeological site that discusses some of the political implications:

http://www.abc.se/~pa/publ/submarin.htm

If you are looking at a U-boat you should visit u-boat.net:

http://www.uboat.net/index.html

Something to consider about U-boats is that they used liquid mercury as ballast. This might be a hazard, or might even have some salvage value. Many years ago I was offered a job working as a commercial diver in the salvage of a U-boat in Central America. I passed on the opportunity because the pay was sketchy, but have often wondered if I should have taken the chance.

Another site with information on submarine technology:

http://www.naval-technology.com/projects/type_212/

The other thing you must consider is the depth. At very deep depths in the ocean there is a level known as the Carbonate Compensation Depth (CCD). This is often at 4000 to 5000 m, so it is probably unlikely to be a concern. Below this depth anything with calcium in it will eventually dissolve, which includes human bone. However, there have been remains recovered from shallow (30 m) water from ships that went down in the late 1700′s. The HMS Pandora is an example.

http://www.qm.qld.gov.au/features/pandora/human/

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