I got these solar panels from a friend. Checked with a multi-meter and they work good. But I cannot get anything to solder to them. Any ideas? Picture attached.
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Those are pressure contacts, for use with a wide, fat spring loaded contact. Solder will destroy them,Powerfab top of pole PV mount (2) | Listeroid 6/1 w/st5 gen head | XW6048 inverter/chgr | Iota 48V/15A charger | Morningstar 60A MPPT | 48V, 800A NiFe Battery (in series)| 15, Evergreen 205w "12V" PV array on pole | Midnight ePanel | Grundfos 10 SO5-9 with 3 wire Franklin Electric motor (1/2hp 240V 1ph ) on a timer for 3 hr noontime run - Runs off PV ||
|| Midnight Classic 200 | 10, Evergreen 200w in a 160VOC array ||
|| VEC1093 12V Charger | Maha C401 aa/aaa Charger | SureSine | Sunsaver MPPT 15A
solar: http://tinyurl.com/LMR-Solar
gen: http://tinyurl.com/LMR-Lister -
Originally posted by Mike90250 View PostThose are pressure contacts, for use with a wide, fat spring loaded contact. Solder will destroy them,Comment
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So, those are Amorphous panels, and provide high voltage and degrade quickly. I supposed loaded, they would be 60V. Any indication or label on them as to their specs ? There may be a lot of voltage, but little amperage.Powerfab top of pole PV mount (2) | Listeroid 6/1 w/st5 gen head | XW6048 inverter/chgr | Iota 48V/15A charger | Morningstar 60A MPPT | 48V, 800A NiFe Battery (in series)| 15, Evergreen 205w "12V" PV array on pole | Midnight ePanel | Grundfos 10 SO5-9 with 3 wire Franklin Electric motor (1/2hp 240V 1ph ) on a timer for 3 hr noontime run - Runs off PV ||
|| Midnight Classic 200 | 10, Evergreen 200w in a 160VOC array ||
|| VEC1093 12V Charger | Maha C401 aa/aaa Charger | SureSine | Sunsaver MPPT 15A
solar: http://tinyurl.com/LMR-Solar
gen: http://tinyurl.com/LMR-ListerComment
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No labels or anything on them. Jusy know a multimeter shows about 73V. Not sure how to get amperage on a multimeter.Comment
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How big are the panels? What are the dimensions? WAG about 10% efficiency. Give us the dimensions and we'll wag wattage.Comment
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Sorry for such a long delay. Life got busy. They are 39" x 20" (approximately). Friend who gave them to me said he believes they are rated at 10amps, 14a,ps max in direct sunlight, they are supposedly low light panels.
In direct sun today I measured 78.5v from one panel.
I'd like to be able to power my furnace (gas). My furnace already has a plug to go to a generator in case power goes out.
I think I have 8-10 of these panels.Comment
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Originally posted by Buddy View Post,.. Not sure how to get amperage on a multimeter...
More generally, you USUALLY set the function switch to DC Amps, and maybe plug one of the test leads into a different, clearly marked, jack.
Then you cover the panel, connect the test leads to + and to -, then uncover the panel.
Make sure that your meter has a high enough range to work safely with the rated Isc of the panel.Last edited by inetdog; 11-23-2016, 09:17 PM.SunnyBoy 3000 US, 18 BP Solar 175B panels.Comment
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The fun part is the next day, you go to measure something with the meter, but you forget to move the test cable back to the Voltage jack. When you connect the leads, your meter explodes in your face because you left it in the shunt position (dead short)
"Absent protection in case of wrong measurement setup"
multimeter_b03_b100.jpg
http://www.vis.bayern.de/produktsich...multimeter.htmPowerfab top of pole PV mount (2) | Listeroid 6/1 w/st5 gen head | XW6048 inverter/chgr | Iota 48V/15A charger | Morningstar 60A MPPT | 48V, 800A NiFe Battery (in series)| 15, Evergreen 205w "12V" PV array on pole | Midnight ePanel | Grundfos 10 SO5-9 with 3 wire Franklin Electric motor (1/2hp 240V 1ph ) on a timer for 3 hr noontime run - Runs off PV ||
|| Midnight Classic 200 | 10, Evergreen 200w in a 160VOC array ||
|| VEC1093 12V Charger | Maha C401 aa/aaa Charger | SureSine | Sunsaver MPPT 15A
solar: http://tinyurl.com/LMR-Solar
gen: http://tinyurl.com/LMR-ListerComment
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This sort of problem is why I use a clamp on ammeter. If a case came up where I need more accuracy, a shunt is wired
permanently in which can then be checked by a sensitive voltmeter. Bruce RoeComment
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My multimmeter is a much more complex one it seems . It has a 1 amp and 10 amp fuse on it so when I do that , and I often do , the fuse blows. $35 at Jaycar /D.Smith etc
Even cheapies have them http://www.ebay.com.au/itm/UN3F-DT-8...MAAOSwNRdX6NQr
What are you using for a fuse ? tin foil?Last edited by tytower; 11-26-2016, 04:28 PM.Comment
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here's the gold foil standard fuse chart:
Fuse replacement chart.jpgPowerfab top of pole PV mount (2) | Listeroid 6/1 w/st5 gen head | XW6048 inverter/chgr | Iota 48V/15A charger | Morningstar 60A MPPT | 48V, 800A NiFe Battery (in series)| 15, Evergreen 205w "12V" PV array on pole | Midnight ePanel | Grundfos 10 SO5-9 with 3 wire Franklin Electric motor (1/2hp 240V 1ph ) on a timer for 3 hr noontime run - Runs off PV ||
|| Midnight Classic 200 | 10, Evergreen 200w in a 160VOC array ||
|| VEC1093 12V Charger | Maha C401 aa/aaa Charger | SureSine | Sunsaver MPPT 15A
solar: http://tinyurl.com/LMR-Solar
gen: http://tinyurl.com/LMR-ListerComment
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