I have a question about battery charging. How long should the battery be charging normally to get a full charge? should it be plugged in longer that the unit signals as full capacity? My unit sometimes just shuts down when battery gets low, will my recording still be present on the JB3 hardrive? Does the battery last as long recording as it would simply playing music? Someone here mentioned a way to get more from a battery but I can't seem to find the post now.