Question: Deep cycle or dual purpose battery for 18'5" Maverick Master Angler flats boat
I'm having a little battery trouble on my Maverick Master Angler 18.5. I have 3 batteries on the boat two up front dedicated to the 24v trolling motor and 1 dedicated to cranking the motor, running the Power pole, trim tabs, motor trim, 2 live wells, Simrad go7, bilge pump, and light for the compass (basically everything else on the boat). The cranking/house battery is new as of 8/17 and brought it in to Westmarine for a load test and after testing it the guy said it is good to go with no problems.
My problem is that when on the boat in the morning the motor cranks right up... But once I run the Simrad unit, one livewell, and use tilt trim/trim tabs the Volt's start to stay low showing flashing 11.8- 12.4 on the tachometer and 10.4-11.7v on the Vsupply for the Simrad unit (low voltage alarm goes off on Simrad the entire time the livewell is on, lucky I know how to turn off the annoying alarm sound).
The real problem is when I have the motor of and I'm fishing a long shoreline or something 45min-2hr's, the motor gets tough to start because the volts are low....
Could my battery be bad although the load test showed it was good? Do I have to many electronics running off the one battery? Should I buy a good quality dual purpose battery and would that be a better fit for cranking the motor and running the electronics?
Please help because I would prefer not to have to us my TowBoatUS membership. Lol