I run and fish about 35 Tournaments a year and Fish about 3-4 times in the week. I have 3 year and 4 month old batteries in my boat wright now. I Charge them after every time out. I have what is called a blim battery from a little place in Hillview KY The Battery is a Suprlex made here in KY Had a Set in my old Boat for 5 years. If they have them in stock they are the best in my mine.