Greetings!, I have a 2003 Harley Heritage Classic, I also have a Samsung Galaxy III Cell Phone, frequently my cell battery is dead when I have taken a long ride . I am looking for a safe way to charge the Cell battery as I ride ( With phone off of course) I went to local Harley Dealer where the Parts guy suggessted a USB cable /Adapter that would connect to my Battery tender cable on my bikes battery. My question is this, is there a danger of overcharging the cell phone Battery if I use this arrangement?? I know I could get the Universal Power supply cable which would also fit my Battery Tender cable then purchase a Car Charger to plug into that etc. etc. The USB Cable direct seems to be a simple solution, I am just worried if that is a "Controlled/regulated method? I looked and it seems I could just put the charging cables in my saddlebag as I ride keeping it and my cellphone safe. Any comments?,Thoughts?