Just got my spartan out yesterday and charged my lipos went to run it and only runs at full burst for a couple seconds then cuts out to 25%. It acts like the LVP is kicking on, but when I bring it back to shore it has a green light. So I put in another set of batteries (lipos) and the same thing happens. Thought maybe the batteries didn't fully charge so recharged everything again and went back. Did the same thing on both sets of batteries. All the cells seem to be ok in each battery according to my charger, but don't know where to go from here. I stored the batteries indoors all winter, should I discharge the batteries? HELP!