Hey. I am not too knowledgeable on this topic so I was wondering if some of the knowledgeable folk here could help me out. Anyways, I have a 12 volt vehicle booster pack which is pretty discharged. There are no ratings on it except for the label that says "ES 2500." I am guessing that the 2500 may be the amp rating. There are two connectors on it, 2 clips, and a cigarette lighter socket. I have a solar panel which I bought from canadian tire. http://www.canadiantire.ca/assortments/...d=1408474396670271&bmUID=1124336620544 The panel is only about 2.2 watts and the product description mentions that it is good for battery maintenance. My questions is, if I hook up this panel to my booster pack, will it charge up my booster pack? I am aware that it probably will take a while, but it will happen right? Are there any concerns that I should be worried about? Thanks in advance.