I have 2016 Sportsman 570 EPS. It was ridden two weeks ago with no issues. Thoroughly washed when doen last time. Went to start it yesterday and all was dead. Turned the key, no instrument cluster, no crank nothing. Jumped it with my 850 and it started. Took off the cables and it quit, tried this again after letting it run for 5 mins. It died again. Question, does it require a battery with a certain charge to be present to run even after being boosted? If so, the battery looks to be toast. If not, I have bigger issues. I thought the alternator output would keep it cooking. Any input would be appreciated.