2011.01.27

My thought process

18.29.05 - Mark

Just a look at my own line of thought
...
My Cordless drill battery won’t charge.
Shoot, neither one works.
I guess I new replacement batteries.
(checks google shopping)
Wait, DeWalt ones are expensive.
(checks ebay)
They’re not cheap on ebay either.
How about recell the batteries?
Yep, there are businesses for that.
Is there a local one?
Better yet, could I do that?
There’s a youtube video for that.
That doesn't look too hard.
But how do weld batteries tabs?
OK, You need a spot welder.
Can I build one of those?
Yep, I even have the transformer for that!
(scans hack-a-day article)
Bookmark it and look at that idea later.
So what type of battery cells do I need for the battery pack?
No luck online.
Although they’ll see me the information.
Not paying $10 for that knowlege
(goes off an measures battery cells)
Where are my torx screwdrivers?
(finds them in tool box)
(take apart battery)
Should I peel the plastic off and see how are they wired?
No, let’s price the parts first.
What battery is about .873” diameter and 1.375” tall?
How much will they cost?
Err, I probably need that in millimeters
So about 22mm diameter and about 35mm height
(converts in google searches)
(digs on digikey)
Ouch $5 for a single 4/5 sub-C NiCad, too much.
Mouser?
No better, unless I order hundreds of them.
Google Shopping?
Still a little pricey.
How about on ebay?
Ok, that’s better, and they already have tabs
Darn, no need for a spot welder.
Hmm, no inexpensive battery suppliers in North America.
Several from Hong Kong / China.
Can I wait 3 weeks to 4 weeks?
Am I sure I can recover the parts from the batteries I have?
Do I recell one or two?
...

While I haven’t decided if I’ll try the rebuild battery route or not, but it occurred to me that our thoughts are processed as quickly as the evolution of a live conversation. The changes in pace, direction, focus, and more. We often realize that these changes happen (unless you have an extremely high tolerance for boring conversations), but we rarely look at the trails our minds blaze. For a “small” project like this it’s kind of interesting recording the sequence of ideas touched on, both distractions and propellents. I’ll admit there were a couple “ohhh shinny” moments I left out, but most of the related process is now written down. I doubt it holds any value to anyone else out there, but you might try this little exercise. It's a little enlightening.

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