Different battery designs but no current ?

[V_Schaub]

Hi.
I tested few different designs including aluminum, copper, zinc, graphite and carbon but i could not get any current.

This are just few setup's :
Graphite -> wood ash ->water ->ALU --> V:  .800, C: not in uA range 
Graphite -> wood ash ->water ->ZINC --> V:  1.200, C: not in uA range 
Graphite -> salt -> water ->ALU --> V:  .700, C: not in uA range 
Graphite -> salt -> water ->ZINC --> V:  1.190, C: not in uA range 
Graphite -> acid -> water ->ALU --> V:  1.100, C: not in uA range 
Graphite -> acid -> water ->ZINC --> V:  .950, C: not in uA range 
Carbon -> wood ash ->water ->ALU --> V:  .650, C: not in uA range 
Carbon -> wood ash ->water ->ZINC --> V:  .900, C: not in uA range 

I don't know what am doing wrong. I tested with wire, plain foils, wire mesh etc. but the result is the same. It was tested with multimeter,with amper meter ( min 250mA ), with 35mA/1,5V buzzer, and nothing.

There is no problem in time or voltage holding.
It runs for days but there's  non or unmeasurable current.
What's wrong with this setups ?

Thank you in advance.
EV
   

[V_Schaub]

Here is one photo from yesterdays work.
http://tinypic.com/view.php?pic=59slnb&s=4

Graphite rod in the middle.
Sponge moisture with solution that i get from silver electrolysis.
Zinc cylinder.

If i put cylinder and rod into some cup filled with the same solution, i will get around 1.2V.

In both setups, i can't get any current.
Any suggestion on how to get some usable current ( in any designs listed in the past post ) is welcome.

EV

[nievesoliveras]

Because you like to experiment with batteries I recommend you to follow this guy's batteries and mix your knowledge with his knowledge.

http://www.youtube.com/watch?v=JHPKSdRRPCQ&feature=related

Jesus

[V_Schaub]

Hi.
Thank you for reply.I found the error and you wont believe what.
Multimeter. He is measuring Voltage but it has problems with amperage and Ohm measure.

I buy the new one and this are the values:
10 - 25 mA for upper designs (water solutions).

The amperage was too small to measure on analog amper meter, and multimeter has error.
Unbelievable, what to say.

I will post some pictures and status info.
This is the design and values for now :

Graphite --> ALU
V: 1,3  A:16mA

[nievesoliveras]

With that battery you can run a joule thief.

Jesus