Working Air Battery

[Pirate88179]

Jeanna:

My infamous carbon rod (1" dia. X 18" long) was purchased from a company called Airgas and it cost me less than $20.00.

Still a lot of money I know but it is still going strong after these 2+ years outside in the ground.  If you need contact info, let me know and I will try to dig it up from back then.

Bill

[maw2432]

@Pirate   
Bill thanks for the Harbor Freight low cost on the fire starters.... they had them on sale for $1.99 each.   

I found these graphite bars 3/4 in. by 3/4 in. by 8 in.   5 for $10.00 on Ebay... they have 10 lots left at this time.   
http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=140400637264

I am looking at making a multi-cell type battery as an experiment when I return from vacation..

It will be several weeks until I get back....

I look forward to seeing everyones progress in the mean time.

Bill

[jeanna]

I have seen some good success with the air battery today.

Yesterday, I soaked every one of my air batteries in epsom salts, and they were still rather wet last evening, when I was not sure I had anything remarkable.

Well, today as the batteries got less soaked, they seemed very strong, so I took the 1 red led from the secondary and replaced it with 3 white in parallel, and the light is great.
I think the one with tape covering all the magnesium seems brighter even though it has a thinner pipe and much less magnesium.
I suspect the bigger one is drier because there is not tape covering all of it.?? maybe??


So, some good encouraging results.
Here are 2 pics:

1/2 inch and brighter
1 inch and bright.

jeanna

[DrZoidberg]

@Pirate   
Bill thanks for the   on the fire starters.... they had them on sale for $1.99 each.

Hopefully they really are made from magnesium.
I bought a fire starter for 3â,¬ and even though it said magnesium on the package it was actually made from aluminum.

[Pirate88179]

[  author=maw2432 link=topic=9276.msg246138#msg246138 date=1277132327]
@Pirate   
Bill thanks for the   on the fire starters.... they had them on sale for $1.99 each.
[/]

Hopefully they really are made from magnesium.
I bought a fire starter for 3â,¬ and even though it said magnesium on the package it was actually made from aluminum.

The ones I purchased there were magnesium and work well.

Bill