Looking for Information on Emisa Battery

 

They make pocket NiCads.

I found a vendor in Australia, but not the manufacturer's homepage...
yet ;-).

Specifically, I'm looking for information on their HS/UHS215 215AH
battery.

Anybody know?

Thanks,

DJ

 



i guess you have seen this already
 http://www.mhpower.com.au/Batteries/emisadat.html

how is your spanish?
http://www.emisa.es/e_ppal.html#principio

http://www.emisa.es/e_baterias_2.html

i think they are owned by
http://www.saftbatteries.com/120-Techno/10-10_Nickel_system.asp  (which is in
english)
but i cant see the battery you are interested in on either site

hope this helps
stu

 



stu wrote:

Yessum, sir, I did, but thanks anyway! There's also
http://www.mhpower.com.au/Batteries/emisa.html  ... again, information
but not enough.


Good links, thanks Stu. I'll make a note of them.


Hey every little bit helps ;-).

Basically, my problem is that the battery seems good, but the
electrolyte seems shot. Density is way low (~1.1) and I need to get
some more to get those batteries back in the game. I originally thought
they were Alcads, as they have Alcad vent caps, but they don't match
anything Alcad makes. I know what electrolyte they'd need if they WERE
Alcad, so the next question would be "would the alcad electrolyte
work?"

Ah, the games, the games ;-).

Thanks Stu.

DJ

 



How accurate are your measurements??
KOH & LiOH solution isn't nearly as dense as a typical solution of
H2SO4.

Did you get any of the Oil layer into your Specific gravity
measurements?


Some links for you..

http://www.ibiblio.org/pub/academic/environment/alternative-energy/energy-resources/homepower-magazine/archives/15/15pg23.txt

http://www.icomm.ca/survival/310.don/nicadnfo.htm

"In the nickel-cadmium cell, the potassium hydroxide
electrolyte acts only as an electron transfer medium and does not
chemically change as the cell discharges.  For this reason, it is
impossible to determine the state of charge of a nicad cell using
a hydrometer."

 



Tim Keating wrote:


Unfortunately, very accurate ;-). Using a calibrated microbalance for
mass and calibrated pipettes for volume. I did each measure to two
decimal points.


True, but I'm told it should be in the 1.22-1.25, and occasionally I
see mention of 1.3 g/ml range, and they ain't.
I'm getting an average of 1.15, with some cells at 1.11.


There does not appear to be any present, again, reason to get some
information on the oil required as well (but identified in one of the
links below!)...


Excellent link! Covers the titration as well. I want to try that, too.
But again, requires replacing the electrolyte if bad, and I expect it
to be bad.



Also good. I've seen one like it before.


Yep. But you can tell the "health" of the electrolyte that way. I've
pretty much decided to toss the electrolyte, but need to know what to
replace it with.
  
Thanks much!

DJ