I have an onboard charger that I bought from bps. Its the one that is 5/5/5. Anyway, after a fishing trip, say a saturday and you use up all your batteries and you come home and by sunday sometime you have the go fish displayed saying your charged up. Should you leave hooked up till you go again? I mean do you get a trickle charge by leaving hooked up, or should you unplug. I have noticed if you unplug by next weekend when its time to go again, my charger will go back to charging again but only after a disconnect. What you think?