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Search: Posts Made By: Daox
Forum: Solar Power 07-31-19, 08:27 AM
Replies: 19
Views: 22,913
Posted By Daox
I realized that I never finished writing up this...

I realized that I never finished writing up this little project. The last update was in 2013 and it has been working incredibly well ever since then. The nimh batteries plug away for months on end...
Forum: Solar Power 01-15-13, 08:03 AM
Replies: 19
Views: 22,913
Posted By Daox
Haha, thats pretty true! It is a learning...

Haha, thats pretty true! It is a learning experience though, and a fun one. As you well know I quite enjoy this kind of tinkering.
Forum: Solar Power 01-13-13, 09:14 AM
Replies: 19
Views: 22,913
Posted By Daox
I reassembled the alarm. Before doing so I...

I reassembled the alarm.

Before doing so I soldered in some wires to the positive and negative battery leads and routed the wires out the back to hook up to the solar panel.
...
Forum: Solar Power 01-11-13, 04:33 PM
Replies: 19
Views: 22,913
Posted By Daox
I got around to taking the clock apart and...

I got around to taking the clock apart and measuring power draw. The results were encouraging.



http://ecorenovator.org/forum/attachment.php?attachmentid=2830&stc=1&d=1357942682
...
Forum: Solar Power 01-07-13, 01:25 PM
Replies: 19
Views: 22,913
Posted By Daox
Yeah, something like that. I'll pull the...

Yeah, something like that. I'll pull the batteries out of the clock and wire them seperately. I'll have one multimeter measuring voltage and another meter measuring current. That should give me...
Forum: Solar Power 01-07-13, 12:29 PM
Replies: 19
Views: 22,913
Posted By Daox
Yes, you are right. Less deep cycling will...

Yes, you are right. Less deep cycling will extend battery life. That is the way I originally thought of when I designed the charging system (solar panel hooked up 24/7). I probably will still do...
Forum: Solar Power 01-07-13, 11:20 AM
Replies: 19
Views: 22,913
Posted By Daox
Nope, I plan on just having a plug similar to...

Nope, I plan on just having a plug similar to that as a port to plug in the solar panel.

Depending on how power hungry the alarm clock is (I'll be testing this) will determine what I do. It might...
Forum: Solar Power 01-07-13, 07:40 AM
Replies: 19
Views: 22,913
Posted By Daox
http://ecorenovator.org/forum/attachment.php?attac...

http://ecorenovator.org/forum/attachment.php?attachmentid=2818&stc=1&d=1357565131

I came back last night from a weekend away from home to see a package at my front door, and inside was the alarm...
Forum: Solar Power 01-02-13, 10:20 AM
Replies: 19
Views: 22,913
Posted By Daox
Just for kicks I decided to calculate the ROI on...

Just for kicks I decided to calculate the ROI on the 'solar investment' small as it may be. Thats not really the reason I'm doing this, but it I think the result is interesting.

First we have to...
Forum: Solar Power 12-26-12, 07:17 PM
Replies: 19
Views: 22,913
Posted By Daox
Alright, I went ahead and nabbed this solar...

Alright, I went ahead and nabbed this solar panel:

New 5V 200mA 1W Monocrystalline Solar Panel Power Cell | eBay...
Forum: Solar Power 12-26-12, 06:44 PM
Replies: 19
Views: 22,913
Posted By Daox
So, I've been doing some reading on nimh...

So, I've been doing some reading on nimh chemistry (which I do know some stuff about, but not charging specifically). I found this specific site quite informative:

How to charge Nickel Metal...
Forum: Solar Power 12-26-12, 10:01 AM
Replies: 19
Views: 22,913
Posted By Daox
I also did some quick searching for a DIY charge...

I also did some quick searching for a DIY charge controller for nimh batteries and found this:

Float Charging NiMH Cells [227] | General Electronics | Electronics...
Forum: Solar Power 12-26-12, 09:50 AM
Replies: 19
Views: 22,913
Posted By Daox
Here are a couple of the clocks I am looking at: ...

Here are a couple of the clocks I am looking at:

Amazon.com: Westclox LCD Alarm Clock 70045: Home & Kitchen (https://amzn.to/2SRBO42)

Amazon.com: Elgin 2-Inch LCD Multifunction Alarm with...
Forum: Solar Power 12-26-12, 09:27 AM
Replies: 19
Views: 22,913
Posted By Daox
DIY solar powered alarm clock

So, I'm in the market for a new alarm clock. My current one is about 10 years old and it has started making an annoying electrical buzzing noise like a bad florescent light. I originally thought it...
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