All Blog Posts (107)

adding differing watt panels together.....

I have 11 HF 15 watt panels and one 145 DM panel my question is this.....why could i not add all of the HF panels together to create 165 watts and then using a single cable from the combined HF panels to the single 145 panel to create a total of 310 watts.....i am not just putting all the panels on the same input.....i would be using two inputs and combining them together.....why would that not work????.....what would be the problem.....i know the panels are two different types and slightly…


Added by michael houston on August 2, 2016 at 11:05pm — 1 Comment

what batteries do you use?

I was curious to see what type of batteries others use with their HF set up. I check this site almost daily, but it doesn't seem like there are any new posts or content.
I use 2 HF setups together with a sunsaver controller and 2 wally world deep cycle batteries and it seems to work work good. How about you?

Added by darren sadkowski on November 25, 2015 at 8:00pm — No Comments

Batteries Won't Charge

Need some help. I bought the Renogy bundle on Amazon the controller won't let the batteries get full charge. I have 25 feet of #8 wire from the two 100 watt panels to the controller and 5 feet of #12 from controller to battery bank which is 4 golf cart batteries by…


Added by norvel richards on July 27, 2015 at 1:30pm — No Comments

Controller Showing 12.06 Consistently

I have a question 

I have HF panels hooked up to Harbor Freight controller & controller shows consistent 12.06 volts. And doesn't go up or down when the sun is out or it's dark. What could be my problem? Any help would be appreciated.

Added by norvel richards on June 15, 2015 at 10:30am — 3 Comments

Is Elon Musk the "Übermensch"

By Jared Dillian

Elon Musk just…

Added by Renewable Ray on May 7, 2015 at 4:46pm — 2 Comments

Looking Back Again Winding UP

Well Just looking back again. Finally got the wind turbine up. According to the wind charts I am in a low wind area. Wind Turbines were not recommended in this area. Haven’t had a single breeze since its been up. It is 24 volt and I have wired it a 24volt CC then into a HF 30 amp 12 vdc CC letting it make the 24/12 vdc Charging decisions (I don’t know if this works or not. No wind and this may be just a waste of a couple of hundred bucks but it was fun). Handcraft told me I did not need a…


Added by dave simmon on April 23, 2015 at 2:33pm — No Comments

swamp cooler

Hello i am in the process of wanting to change my 115 volt 1/2 hp swamp cooler to solar would also like to run it at night.    My question is what solar hard wear ( panels, battery and inverter will be needed.  The motor is 115 v at 8.4 amps and the pump is .7 amps

Added by Leland Cummings on April 20, 2015 at 8:41pm — No Comments

HFKit to radio hook up

Hello to all.
I just bought a good radio with SW and Weather capabilities as well as am fm. It takes 4 D cell batteries to make 6V. I think I should be able to hook up the HF D Box to the without having to buy D Cells whenever they go. The radio has no 12V connection. Can I just hook the 6V output to the pos and neg sides of the battery compartment or is there some circuitry required.

Added by sl dl on February 26, 2015 at 5:47am — No Comments

An Evolution.. A Quick Overview..

I was just a typical Joe doing the life thing as most everyone else does. Work a job, acquire things, get married and attempt to build a life. I was in my late 20's and things were going well, at least I thought they were..

A couple of years later, me and the wife parted trails over stupid stuff. I've been in relationships prior to getting married and all fell through because of stupid, silly stuff. After my divorce, I became bitter about life in general and I wanted to make a drastic…


Added by Don Abel on January 21, 2015 at 6:41pm — 6 Comments

Beyond Tesla: The Huge Profit Potential of Lithium

By Tony Sagami

One of the stocks that I get the most questions about is Tesla. I’m not sure whether investor interest is due to the gorgeous lines of the Tesla Model S, its amazing high performance engine, the high flying stock, or the energy saving nature of all electric vehicles….. but Tesla is a very popular subject.…


Added by Renewable Ray on January 8, 2015 at 7:38am — No Comments

Two Year Plus Defeats and Wins

Just thinking about the two year long trek into the solar DIY life and it has been a humbling and learning ride.

I started with one HF Kit to kick and learn on like most my comrades here once you get is going its tough to stop expanding. 2 HF kits side by side ties into two Northern tool kits. 12 DMSolar 145s up and Six more going up.

I now look at the Six APGTek 30 amp Charge all seem to sysnc up and the Batterys are staying charged up. I have checked them they are good to go.…


Added by dave simmon on November 27, 2014 at 3:51pm — 3 Comments

Solar Panels for sale

Hello, It's been a while but finally purchased a 7K system for my house,  best move ever, but now I have some solar panels in my way.  My wife calls me a dreamer because I'm hoping some one lives close to Austin,TX and willing to drive here to pick them up?!?!

I have Two New in the box DM-145 Watt...  

Two new in the box Kyocera 80 watt... 

One new…


Added by Jack Hutchins on October 1, 2014 at 2:56pm — 1 Comment

Notes Evap Cooler

Well I did not think much about it but the Evap cooler have been running running most of the summer. Hot water has been going for two years now. I never thought this stuff would pay off but it did.

I owe a lot to the guys on this Website. Thanks.

The Lights on the 30 Amp APGtek CC had been a puzzle to me for a while

1st Light Green Panels are good

2nd Light Blinking green Batt are charged up. (This is where all Six CC stay GOOD)

3rd Light Yellow ( I have…


Added by dave simmon on August 25, 2014 at 2:55pm — No Comments

Sunforce Model # 50033 15-Watt Solar Battery Charging Kit $84.99(Home Depot)

I know some of you here like these panels so I thought I'd post this. I wouldn't personally buy it but I have not seen a better price for this kit.

Added by george jones on August 9, 2014 at 11:17am — No Comments

Solar Power....Brian Dessauer's system

There is my system in the back! I bought a warranty with it. I;m looking forward to putting it up. I was really impressed with the packing of entire system. They did a real good job being sure everything stayed…


Added by Brian Dessauer on August 3, 2014 at 6:00pm — 1 Comment

Thomas Edison’s Dream Smashed

Agree or disagree....but I couldn't resist sharing......

By Adam J. Crawford,…


Added by Renewable Ray on June 28, 2014 at 9:59am — 2 Comments

Harbor Freight 750 Inverter

I did speak with the rep at Harbor Freight concerning the alarm and red light flashing and checked my batteries, but my batteries are fully charged. I don't know what else could be happening. Any ideas?????



Added by Patricia Hubbard on June 17, 2014 at 1:03pm — No Comments

Solar Newbees with Three 45 Watt Harbor Freight Kits

OK, we are solar new bees bought three 45 watt hf solar kits hooked them up batteries went low voltage alarm came on so we hooked up kit number three batteries were still low12v alarm came on we were told we need a bigger charge controller we bought a thunder bolt 500w charge controller low voltage alarm came on wired solar panels in series need help with this one please

Added by sally garrison on June 6, 2014 at 2:30pm — 4 Comments

Battey venting: safety question

Newbie here. I just installed an hft system and think I've got it right thanks to all the info I've gleaned from this site. One question i cant seem to find an answer to:venting. I have 2 deep cycle marine batts in a box i built. I've installed a 2" vent tube to the outdoors (approx 70 degree angle ) in the top left corner and drilled 3, 1/2" holes along the bottom, opposite side. Will this provide sufficient passive venting for safety? Thanks for any advice !

Added by Han Smith on June 6, 2014 at 10:11am — 3 Comments

New Multi meter

Well I broke down and bought a new clamp on multi meter. My Garage Sale one showed me using 80 amps. Every thing shot that not to be true.

Yes I bought the 12 bucks HF Clamp on. To my Surprise the Garage sale one was way off. The new one showed I was using only 40 Amps. The panels are replacing into the battery bank 80 plus. I feel a lot better about the setup now. I will be replacing more of my GS tools now.

Added by dave simmon on April 28, 2014 at 5:19am — No Comments

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