Tenergy USB 5000 Hybrid Solar Charger.
I was excited to get this Charger for my GPS because some of the company vehicles I drive don't have working cigarette lighters to keep the GPS charged during my daily work shift. This charger works until the battery in the GPS gets low, then the GPS will charge about 4 hours with this solar charger on two fuly charged batteries. Two fully charged batteries last about 4 hours for the GPS before it stops charging. Charged my cell phone with this charger too. Need two fully charged batteries or it won't charge your cell phone either. Better than nothing though.
Rating: 3 stars