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Guess the project...
Topic Started: Oct 22 2012, 04:21 AM (1,833 Views)
nwgeo


Just a battery holder for the power to the e board to conditon the power to the .... on the brown and white wire.
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starscream5000
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Got 70 MPG?

Coche Blanco
Oct 22 2012, 12:56 PM
DIY battery charger? But the non rechargeable battery confuses me.... hmmm
You CAN recharge a "non-rechargeable" battery with other batteries.
I have no idea what the picture is though.
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reddevillhs17


starscream5000
Oct 22 2012, 05:03 PM
Coche Blanco
Oct 22 2012, 12:56 PM
DIY battery charger? But the non rechargeable battery confuses me.... hmmm
You CAN recharge a "non-rechargeable" battery with other batteries.
I have no idea what the picture is though.


or a cordless drill

http://youtu.be/XoA9PEP9Pzs
Edited by reddevillhs17, Oct 22 2012, 06:15 PM.
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Cobb
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Its an antenna for war driving. Who suspect a aa battery, coin battery and screws on a board as being an antenna? :thumb
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geo pet
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" my strange addiction "

Its an electric muffler bearing reconditioner .i need one in the worst way,

Or its a turn signal fluid low level alert switch .
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Turbo Dan-O
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Obsessive Car Detailer

geo pet
Oct 22 2012, 06:43 PM
Its an electric muffler bearing reconditioner .i need one in the worst way,

Or its a turn signal fluid low level alert switch .
:gp Kind of what I was thinking but I did not want to sound silly. I hate when my blinker fluid gets low... Ruins my day everytime! :smackface Muffler bearings are fun to replace also.

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Potter
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Col. Potter

button cell battery charger... tripped me up till i used the magnifier... using a AA to charge it.
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rmcelwee
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Well, some of the guesses were close. It is indeed a charger for "non-rechargeable" alkaline batteries. The project:

http://www.lightweightmiata.com/projects/batterycharger/

First test (before and after):
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Coche Blanco
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Troll Certified

So...what's the verdict?
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rmcelwee
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The verdict on problems charging the watch batteries? Still needs further testing. I've got one cooking now and will look at it after 24 hours. The batteries were 8 years old and completely dead. That is probably the limiting factor.

Verdict on the ability to charge an alkaline? Looks good. The AA battery pics speak for themselves.

I should have made it easy to swap resistors out to change the mA charge intensity. I'm doing a very small trickle now so I think charge times will be pretty long. I didn't want to create any heat and risk blowing up the batteries.
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JellyBeanDriver


Problem with charging alkalines is they tend to leak, also don't have as much capacity but still useable amount. Zinc will also form dendrites that can grow through the separator causing cell shorts.

Lithium coin cells - don't know much about recharging those. I know lithium ion has a tight recharge voltage range - outside of that and you can turn your pack into a nice smoking blowtorch.
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rmcelwee
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Doesn't really matter much to me. I was more interested in the project vs actually saving money or getting a perfect charge.
Edited by rmcelwee, Oct 23 2012, 02:28 AM.
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Cobb
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Id rather connect watch and single cells to the ends of a 10 amp battery charger and watch the fire works. :rocker
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rmcelwee
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When I was a kid I had a LCD watch (pretty sure it was one of these super expensive ones - click on the link to see something amazing) with a dead battery. I taped it to the end of a long wooden fireplace match and stuck it into a bug zapper. I pulled it out after a few seconds and the battery worked just fine. I think the watch was still working fine when I lost it a couple of years later.

http://www.ebay.com/itm/CASIO-G-SHOCK-VINTAGE-DW-5000C-1B-THE-FIRST-GOLD-SERIES-CIRCA-04-1983-RARITY-/261090962733?pt=Wristwatches&hash=item3cca3bed2d

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Cobb
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What does charging single cell batteries have to do with lightened miatas? :coffee

You saving the topic of nailing jelly to a tree for us? :cheers
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