Sep
06
2011
Epcom 50 Watt Polycrystalline Solar Panel – 5 year warranty
By Solar Expert
Epcom 50 Watt Polycrystalline Solar Panel – 5 year warranty
- Power (W): 50.
- Voltage (Vdc): 18.
- Current (A): 2.78.
- Operating Temperature: -40 to 90 º C
- Silicon-based high-performance solar cells
EPCOM PV Panels are made using only high quality polycrystalline silicon for higher efficiency. With robust low-profile anodized aluminum frame to withstand strong winds.
They can be an inexpensive way to put together a solar power generation system. They are much less costly than monocrystalline panels and simpler, but they will last the same time as a monocrystalline panel.
EPCOM with warehouses at Texas, Florida and California has been manufacturing and distributing solar panels for 23 yea
List Price: $ 229.99
Price: $ 149.99
HARBOR FREIGHT *COUPON* 45 WATT SOLAR PANEL KIT
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 | US $99.99 End Date: Friday May-18-2012 17:39:33 PDT Buy It Now for only: US $99.99 Buy it now | Add to watch list |
happy camper,
i bought 4 of these to power a camper with 12 volt freezer a tv dvd player and lights.i have them hooked up to a hqrp charge controler and a vmax charge tank and they have no problem charging the battery even after runing the freezer all night long.cost about the same as a good generator but no noise and no gas.i like them and hope to use them for years.happy camper
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|Seems to be well made,
the connection terminal is a little bit flimsy, but the panel seems pretty rugged with a strong aluminum frame and tough glass cover and sealed back. I measured the amperage in full sun and it is 50 watts. I wired it in parallel with an older 50 watt panel and it is working fine with an Instapark MPPT charge controller also bought from Amazon.
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|EPCOM 50 watt Solar Panel,
The panels arrived intact. They also arrived with no instructions.
The POLARITY of the terminal screws was also unmarked.
After determining POLARITY, I wired the two panels in parallel and ran the power wires to an HQRP SOLAR Controller ( POLARITY counts ).
I mounted the panels to the southern side of my house using 1/8″X1″X36″ aluminum strips and 1/4″ lag bolts through the ends of the strips.
You have to attach the battery ( again, observe POLARITY ) to the controller FIRST, and then the solar panel wires.
Initial charging from the controller will be at 14.4 VDC until the equalization voltage drops to about 13.70 VDC to maintain full charge. The battery LED light on the HQRP Controller will blink slowly at FULL charge.
I rate this project as being for medium to expert installers, requiring a multimeter, and household tools, i.e., drill, level, wire stripper, sealants, etc……….time to finish project—about 4 hours.
The lack of instructions for the panels assumes the installer is familiar with DC Solar Panels, and how to configure connections. Importantly, the matching of total output voltage and current from the panels to the controller is critical. My controller has a 10 Amp capacity, so the output from the solar panels (5.5 A) does NOT exceed its capacity. Apparently, the total wattage is more important than the rated voltage from the panels, as my panels produce 18 VDC at 5.5 Amps, and the controller is rated 12/24 VDC at 10 Amps.
Most importantly, my configuration seems to work………..
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