We got this solar package to keep our EXP 96PRO lithium battery for our cpap machines up and charged when traveling and camping. So far as I can tell it seems to charge the battery quicker than the house charger!
EXP PRO Solar Panel (monocrystalline)- 30 Watt
Used it to charge cell phones this weekend. Seems to work well so far. I only wish it came with instructions. We will figure the details out later together...