Description
- SunPower flexible panels are the #1 choice for customers due of the combination of high power and cell ruggedness.
- The panel can be installed with adhesives and/or use of stainless steel grommets in the panel.
- The panels have standard quickconnect cables. An easy-to-follow installation guide is provided with each panel.
- SunPower’s panels are constructed with top-grade, light-weight polymer materials, allowing the for easy transport, installation and panel flexing up to 30 degrees.
- Made with SunPower’s highest power Gen II back contact cells, SunPower’s flexible panels deliver the highest power output and the highest charging capacity in their product class.
FStick –
This is my sixth flexible solar panel. All have failed within 18 months. Some even sooner. Junction boxes are usually crap. The are not user serviceable and leak. This Sunpower panel is a much better grade of panel. Junction box is better and user serviceable. Also he top layer is a polymer which is impervious to the sun. All my others had a cheaper top layer that rotted in the sun. The extra money for here is well worth it.
SMarcz –
Mounted this to the topper of my truck so it will charge a deep cycle battery and run a 12 volt refrigerator/freezer 24/7 with a charge controller. One does the trick but I will be ordering another panel for 2nd battery.
Brian M. –
I have two of these installed on the hardtop of my boat, and will be adding two more. Everything on the web says you can expect 1/4 of the rated output in real life from moncrystalline panels, and 1/3 of the rated power from Sunpower cells. I’m getting better than that so far.
I have my two panels connected in series, to a Victron SmartSolar 100/30 MPPT controller, charging a single 12v house battery, (with a jumper to my thruster batteries if I need more capacity).
The Victron controller has Bluetooth, and a free phone app that tracks and graphs output. On days at anchor the best day yield was 880 watts over 14 hours. P Max was 130 watts, and V Max was 42.52 volts. This was with a lot of smoke in the air from the forest fires up here in the Pacific Northwest. Each day on my graph is different because when the boat is running, or on shore power, other chargers are doing more than the solar, so at anchor all day is the best gauge of what they will do.
When the sun comes up in the morning, you pretty quickly get up to a couple of amps charge at 12v (the mppt controller converts the panel voltage to battery voltage). The peak output is probably about 5-6 hours midday, but you’re still getting amps all day long.
Shade does affect them, I have the panels lined fore and aft in front of my radar dome, spaced above the hardtop by about 50 small rubber cushions to allow some airspace under the panels. I don’t intend to ever walk on them. When a cell is shaded, the combined panel output drops in half.
Overall I’m very happy with these panels. As the other reviewer said, smooth panels, easy to keep clean, and very tough in appearance.
Update: the picture I added is a sunny day in May in Seattle. 331 watts max output. For four 100 amp panels, that’s pretty darn good.
Loving –
I think these SunPower panels are the best, with a copper backing to the cells that makes them much less likely to crack internally with vibration. But I had a weld separate on the junction box and this supplier after doing their due diligence is doing everything appropriate to get this running again. Well done Expert power Direct!
Loving –
Panels arrived with exacto knife cut down the entire panel as well as the shipping box. The box had been opened and the top of the panel surface cut by the knife. Returned for replacement.
HHH –
Output dropped to 18watts full sun after less than a year.
slee25 –
I’ve had two panels on the top of my dodger on my sailboat for ever a year now. These are premium panels and well worth the cost, ESPECIALLY when compared to *llpowers and others available here. After two years the *llpowers solar panels are faded, cloudy, and the junction boxes are a joke. The Sunpower panels have IP67 rated junction boxes and the quality shows. Don’t waste your money on crap, buy these.
SMarcz –
I mounted this to the roof of my camper. I’ve read that many of these flexible panels go bad from too much heat, then are a pain to peel off your roof if glued down.
I used high strength veclro tape to mount this to my camper roof, with safety wire through the grommets as a fail safe. The velcro allows air flow, to hopefully reduce heat buildup, and also allows me to remove the panel for use on another vehicle, or in case of failure. I’ve had this setup for a few months with no problems, even when driving 80mph down the freeway.
I’m pleased with this panel and would buy again.