Solar panel

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Solar panel

Postby EnduroFit » Thu Jun 07, 2018 11:40 am

I purchased this off Amazon on Monday, as I wanted to try a lightweight 100w system with my 35aH battery. It was well packaged, 2 boxes, bubble wrap, filler paper, etc. Upon opening, notices a few compressions on the panel, a rub mark and the controller had a compression mark on the side of the LCD. I connected to the battery and everything seemed to work well, phone charging, etc.

I emailed and they asked if it worked, if so and wanted to keep, they'd partial refund. If not replace. Should I replace? I'm thinking yes, but wanted to have some insight from those familiar with
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Last edited by EnduroFit on Thu Jun 07, 2018 3:59 pm, edited 2 times in total.
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Re: Solar panel

Postby Cosmo » Thu Jun 07, 2018 12:19 pm

I am sure others have better ideas but for starters.
I would test the panel in full sun. Voltage test across the positive and negative. Then an amps test. See if it is putting out the power you paid for.
Next I would hook it to the battery so it is experiencing a load, and monitor (with my own meter) both the charge voltage and current.

I would check to see if the controller is indeed turning off the charge when the battery hits the target voltage.

I would do this even if the panel appeared to be in perfect condition

Good Luck!

=Cosmo


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Re: Solar panel

Postby greygoos » Thu Jun 07, 2018 2:21 pm

Return it and get a new one. Because it works today does not mean it will work tomorrow
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Re: Solar panel

Postby slowcowboy » Fri Jun 08, 2018 5:21 am

My exsperance with solar is as a rancher I use the solar electric fence chargers to keep cows in.. when its overcast or its night the cows get out.. I also use a 20 watter to charge up batterys on tractors parked out of drop cord reach of the shop.It takes,a,week some times to get the battery up to 12.7 volts were I can start the tractor...in camping world I have found a charge wire off my tow vehicles alternator will in 15 mins easly with my truck running re charge my teardrops battery.. so I really don't mess with solar to camp with. I find the green energy highly un effeicant and very un dependable. .Slow
Plans. there was supposed to be plans to be followed when I built this thing. Opps! AH, gee, tum,tee tum. I think I forgot about the plans 2 years ago. ------Tow vehicles, 1995 ford explore, 1994 ford ranger, 1993 ford F-150, 2009 4x9 Off road teardrop, on harbor freight greatly modified frame.
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Re: Solar panel

Postby absolutsnwbrdr » Fri Jun 08, 2018 6:03 am

I would do as Cosmo suggests, and test the panel. There is likely nothing wrong with it, but you certainly want to be sure. If it were already dimpled inside of the protective packaging, it got that way before packaging. So theres no guarantee the replacement won't be dimpled as well. It may be worth a note to the seller just to see what they have to say. I wouldn't be concerned about the dimple in the controller screen (performance wise) but the one on the panel may or may not be an issue. Looks like a nice little portable unit. Great start for going solar!
Zach

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Re: Solar panel

Postby tony.latham » Fri Jun 08, 2018 11:23 am

I use the solar electric fence chargers to keep cows in.. when its overcast or its night the cows get out..


Hey, Slow! (How are you doing, anywho?)

That sounds like a battery failure, not a solar panel problem.

:thinking:

You're getting about 1.5 amps from that 20-watt panel you are using for battery charging. Great for maintaining, but as you know, it's not really big enough to charge a tractor battery. Think how little a 20 watt light bulb produces for light.

:frightened:

Tony
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Re: Solar panel

Postby EnduroFit » Mon Jun 11, 2018 9:53 am

I returned the original, as it must have been prior to packaging. Refunded and sent a new one, arrived today.

It was packaged the same and no issues with this one. Definitely like the portability of a suitcase panel. The wiring is the crazy learning experience for me and I'm almost finished with my 12v system. I'll be trying it out this weekend. :thinking:

Thanks for the input. I'll share some pics when I'm finished. :wine:
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Re: Solar panel

Postby NorthEGPhoto » Fri Jun 15, 2018 8:26 am

Those are supposed to be monocrystaline? new chemistry, or am i missing something? they don't look like mono panels to me.
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Re: Solar panel

Postby EnduroFit » Sat Jul 14, 2018 5:26 am

Sorry so late in responding. I'm only able fo assume they are mono panels, not sure how to tell or find out. They have some flex but not made to bend so maybe that has something to do with how they look? Seem to work well from my 1 time use.
NorthEGPhoto wrote:Those are supposed to be monocrystaline? new chemistry, or am i missing something? they don't look like mono panels to me.


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Re: Solar panel

Postby GPW » Sun Jul 15, 2018 4:52 am

Fit, That’s a nice looking PORTABLE folding panel , good travel size too … Not really a bad price … 8) Please keep us up on how it’s working …
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Re: Solar panel

Postby NorthEGPhoto » Wed Jul 18, 2018 11:23 am

EnduroFit wrote:Sorry so late in responding. I'm only able fo assume they are mono panels, not sure how to tell or find out. They have some flex but not made to bend so maybe that has something to do with how they look? Seem to work well from my 1 time use.
NorthEGPhoto wrote:Those are supposed to be monocrystaline? new chemistry, or am i missing something? they don't look like mono panels to me.


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No problem. Just that those look like amorphous panels - which are usually much cheaper and not as long wearing. but, it is possible just your picture makes them look that way.

here's a good guide:

https://www.greenmatch.co.uk/blog/2015/ ... lar-panels
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