First of all I have to say i love my i-pilotbut….I have a I-pilot 12v and have went threw 3 batterys now in the past 4 months. I don’t know whats going on here I haven’t even used it lately went to charge the battery and it’s screwed again. Should I be disconnecting it when not in use or what. anyone heard of this problem. last time i returned the battery they said 6 cells were dead. I must be the minnkota.