That style of Solar panel is reported to last 20-25 years. I started getting into solar setups around a year ago. I set up my travel trailer to recharge the batteries with a 20 watt solar panel. It worked out far better than I thought it would.

I want the USB and alligator clip setup just to be able to trickle charge the battery on an ATV or a vehicle if the need arises. If its just 2 wires inside a USB cord I will swing by radio shack and pick up some clips and be in business.