From: Alan King (Alan_at_nc.rr.com)
Date: Tue Dec 11 2001 - 23:08:41 EST
"Cottrell, Eric" wrote:
>
> Hello,
>
> One little inovation they have is batteries with tabs on them. You can
> carefully solder to the tabs.
This is totally useless information, you do see that the link you gave
is AA batteries? How many laptop batteries use an actual AA battery
inside? The whole purpose in my telling how to solder to the terminals
is because it's difficult to even find the right batteries, and most
often they are not available with tabs, since they're often only made
for mass manufacture and are spot welded by the OEMs.
> This is the only recommended method for soldering batteries. It is possible
> to rupture the safety
> value on the battery (causing them to leak) if heat is applied directly to
> the positive cap.
Which is precisely why I told how to do it with acid flux and not heat
up the battery.
>
> http://thomas-distributing.com/mh-dba-1700tab.htm
>
> I have also seen Ni-MH D size cells that are not like those Radio Shack C
> cells in D clothing.
> Maha/Powerex have 8 AH batteries in a D size. The C cells are 3.8 AH
> compared to RS C
> and D cells being 2.2 AH. I would not solder to these cells however.
Well then don't, but don't regurgitate the useless information you've
read. That's fine if you want to live a simple little life and follow
all the rules to the letter, go buy a $150 battery pack, or better yet
send me $150 and I'll do the work for you since you're afraid to try
things for yourself. But no matter how many references you can site, I
can site 10 years plus of actually doing it that says you and your
references are wrong for anyone with a little sense and know how. The
ONLY reason I mentioned the C in a D type is for anyone who was overly
concerned to try on one that isn't in direct contact with the cell
first, to see how well it solders to the terminal material with so
little heat. If you're not going to try it and put your 'knowledge' to
the test before blessing others with your wisdom, then it's worthless in
the first place. And if you do, you'll see just how far off of actual
reality what you know is. It isn't just easy, it's pathetically easy
for anyone who's technically inclined and knows how to solder. It only
takes doing a few to realize that the 'you can't solder to batteries'
junk is largely legal crap to absolve the manufacturers of any
liability. And I clearly said that what I was detailing goes against
conventional 'wisdom', or lack of it, so what was the point of a post
saying how you'd only do things that follow those rules?
> If you look in the commercial battery arena you can find batteries with tabs
> and some makers even
> have multi-cell packs.
And they don't have a thing in the world to do with with what we're
talking about, since they're not going to match the batteries inside a
laptop battery pack, so are totally useless for our purposes..
Alan
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