HQST 100W 12V Monocrystalline Solar Panel with Solar Connectors, High Efficiency Module PV Power for Battery Charging Boat, Caravan, RV and Any Other Off Grid Applications

5/3/2025 - Just installed and everything test good. Great power output. I can't give specifics because I'm running this one in parallel with a Grape Solar 100W panel that is 4 years old and I got combined output from the two at least 150W before clouds arrived. I mounted these onto my roof with Unistrut rails and these hold-down clamps (https://www.amazon.com/dp/B0DQL39VTV). Very impressed so far. If mounting on a camper/van, I would not mount directly through the thin aluminum frame holes. Use more robust solar panel clamps like above and ensure those clamps are near the front of the panel to reduce potential for wind to lift the front and break the panel. For normal use, the frame is certainly strong enough.

The 100 watt panels are now pretty much old technology, but for the price point they do a very good job. On a full-sun day I get the rated wattage. Even on cloudy days they still can generate 10 - 30 % capacity. These and most of the other brands of "generic" 100 watt panels being marketed are very close in performance. (I've bought (4) different "brands" in the last year and they're all pretty much identical).

A great panel at a great price!

Easy to install, works great. Charges and power ups my battery to almost the stated Volts. The outer mounting rim seems secure . I consider them very light weight as my truck camper's roof had no problem raising or lowering(popup).

So far, a solid panel, especially for the price! Testing right out of the box with my multimeter in direct afternoon sunlight, I’m getting 22.1v and 6.03A, for 121.2W. The cables are shorter than I would have liked, but they are made with nice sturdy wires, and solid connections. They are nice and light, which is great for setup, and using them in the RV. 9bb, as described, so far it works works very well. I will update once I get some measurements in low light conditions, as is common up here in the north. If the PERC technology outperforms my standard panels on the cloudy days, I will update you 5 stars!

This is perfect for my solar generator. Keeps it charged, and quickly, I might add.

I installed one for my shed and is charging my Pecron Battery. Works great!!

Purchased for home backup to charge power stations and a couple of lithium iron phosphate 100 ah batteries. Tested in good sunlight and got around 90 watts. The price was good so I bought a second one using the “buy again” button. Second panel arrived and it also tested good output. Only issue was it was a different size. It would have been nice to be notified by the seller. Fortunately I place them on a rack of sorts so it’s not a big deal. Guess I should have bought the 2 pack.