Reviews of Sunforce 50123 20W Solar Battery Charging Kit

Customer Ratings:
List Price: $109.99
Sale Price: $108.81
Today's Bonus: 1% Off

I have used this panel for a year to keep my smartphone fully charged (even on overcast days) and I'm buying several more for my tablet (already tested) and PCs. Most disappointed buyers I've read do not understand electrical current conversions (amps to watts, etc.) and blame the panel for not producing as promised. That is not true. So, use this easy rule of thumb: This panel will recharge ALL USB-powered devices because USB-anything draws 0.5 amps and this panel is max-rated at 1.2 amps. Subtracting for reduced power on overcast days, plus waste caused by resistance in wires and connectors, that means that you can throw away 0.7 amps and still have enough power for recharge. Bottom line: l panek per USB-powered device. One more note: do not use inverters to produce AC for reconversion to DC, because that throws away up to 50% of current for nothing. Use a simple car charger (from any nearby truck stop) so you go DC to DC all the way. You may have to use a 1male ti 2-female 12 VDC splitter because both the panel and the car charger end in male connectors. Current will flow through the two female connectors even when the male connector is not plugged in.

Click Here For Most Helpful Customer Reviews >>

I use this product to keep a charge on two deep cycle batteries for my camp trailer. Just plugged it in and let it do its thing.

Best Deals for Sunforce 50123 20W Solar Battery Charging Kit

Pros: Well built, good set of connecting cables, solid packaging for shipping.

Cons: The battery side of the controller doesn't have a quick connect/disconnect. had to add that.

Use this on a boat and at extended camp to charge 12 V marine batts. Like most solar panels, this requires direct sunlight for a full charge. But less than full sun will keep the battery at it's current level.

Cords are a good length. A bit pricey.