Open Source NiMh Battery Charger/Analyzer

A project in Salt Lake City, UT by Paul
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Funding Successful

Charge and Analyze NiMh Batteries with 18-bits of Resolution
Backers: 270
Average Pledge Per Backer: $81

Funded: $21,789 of $6,000
Dates: May 24th -> Jun 22nd (29 days)
Project By: Paul
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$21,789

current pledge level
Last Updated: June 22 @ 04:01 -0400 GMT

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funding period ended

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Latest News

LCD

June 18th - via: kickstarter.com
I am sure a lot of you have been wondering what this charger will look like with an LCD attached to the bottom and with the acrylic case. Well, except for the fact that the color is still unknown, it will look like this:  (Read More)

Added pledge options for the case

June 13th - via: kickstarter.com
I added pledge options for the case seen in Update #5.  Basically the case is $10 for the version without LCD and $13 for the version with LCD (sorry I don't have pictures yet).  If you are interested just change your pledge option to the one you... (Read More)

Arduino Compatible

June 8th - via: kickstarter.com
I was working on the latest board revision, adding the control for external loads, mounting holes for the acrylic case, adding the potentiometer for adjusting charge current, updating the footprint for the new SD card slot,  the connector for the... (Read More)

External Load

June 3rd - via: kickstarter.com
Everyone is now going to be able to connect their own external loads if they want.  I am going to put two jumpers on the board and headers for hooking up an external load (whether a high power resistor, a constant current load or something else).... (Read More)

Case

May 30th - via: kickstarter.com
Rounded corners and a slot for the SD card. I am thinking of just providing the files for this case so that anyone who wants it can just have it made. There are lots of services that do small volume laser cutting, many of which are pretty affordable... (Read More)

Laser Cut Acrylic Case

May 29th - via: kickstarter.com
This is what the laser cut case I am working on will look like.  If you want something more than this, you will have to make your own or wait for the 4 battery version.  (Read More)

The Future of the Open Source Battery Charger

May 28th - via: kickstarter.com
A lot of people have been asking me about a case, features and the future of this project.  I never meant for this version to be "The Version."  Nevertheless, I needed to start somewhere and this is it.  I can't go much farther without your help.... (Read More)

Wow!

May 27th - via: kickstarter.com
Wow... All of you are Awesome! It is always scary when you work so hard on something and then the time comes to put it out there and see how it is accepted (just like art). I am really thankful for how you have received this project.  (Read More)

Rayovac vs Eneloop

May 25th - via: kickstarter.com
Just for fun, I put a Rayovac and an Eneloop in the charger that have both been through about the same number of cycles (around 15).  I had it charge them both, then I let them rest for a while before discharging them both.  The Eneloop had a... (Read More)

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