Natural Science Forum / Chemistry / Electrochemistry / June 2006

I am about to fill some large 2v traction batteries and wonder whether
to use 1260 or 1280 acid.  I understand that 1280 acid will enable me
to pull higher discharge rates but at the expense of battery life.  The
batteries' original spec was for 1280 acid, but then they were being

I am currently trying to define what the appropriate battery would be
for a hybrid boat. I found information on Vanadium batteries, that
apparently are close to commercialization. Their biggest drawback is
apparently the low specific energy, but this is not very critical on a

I've got some new AAA rechargables from Energizer,
and i'm not happy with my current, very old, charger.
The charge seems weak,
although i will need to charge them a few more times,

I am planning on continuously trickle charging batteries with a solar
panel.  Temperatures will vary widely, with temps less than 0ºC
likely.  I am new to this, but from the information I have been able to
gather, NiMH would not charge properly at such a low temp.  Is this

I have a cell biased with 5v. Both electrodes are copper and the
cathode is at 0v and the anode is at +5v.
I am trying to read a Pourbaix diagram for copper on the following
paper from IBM

Hello all- I know this topic has been discussed before, but I still
don't think anyone has provided a good/great answer.  I am wondering if
anyone out there has any suggestions on a good Zinc electroplating
solution to use at home.  I have looked online for days and really

I have two 6 v. 225 ah deep cycle flooded batteries that I just
purchased a couple of weeks ago to use with my solar panels.
So far the most capacity I seem to be able to get so far is a total 50
ah at a 50% dod.  I have cycled them several times and have equalized

I use Inverter batteries at home due to power outages. Seeking your
help in knowing following:-
1> Would the batteries emit lead oxide to air that is supposed to be
harmful to life?

Hello battery guys! I got a question, thanks for taking the time to read
 and respond to this. I've done many a google search, but no luck.
Is it okay or bad to use (and charge) 2 3.6v camera packs in series?
Here's why: I have a space-demanding application in my next product,

I have a set of 4 Powerizer AAA NiMH batteries that I use in my
universal remote control (Home Theater Master MX-700).
"Fully charged" they last around 2 months in typical use, if I'm lucky.
Now, what I've been finding consistently is that I can't simply charge

I use Potentiodynamic polarisation scan using Saturated Calomel as
Reference and Platinum electrode as Counter electrode. Platinum
Electrode is a 1cm by 1cm flag type. A few months ago, I started
getting unusual results, and while trying to locate problem, I found

I am trying to find the DeltaG value for "Cu(OH)2".
I have looked in the latest CRC book but this figure is missing but is does
show the DeltaH value.
Could anyone help either convert this figure or point me to a source where I