BOAT: 2020 TRACKER 175 TXW TOURNAMENT EDITION (60 HP Mercury)
Issue:
My cranking battery has died twice out on the water and had to use trolling motor to get back. My two fish finders are labeled below with the manufacturer’s specifications on power draw etc. These two helix units are run DIRECTLY to the cranking battery. The boat is always plugged into for charging (through the onboard charger) as I store this boat in a garage. Prior to taking the boat out to use, I always check the onboard charger to deem that every battery bank shows a “solid green”/or full charge. Out on the water I typically hit “standby” on the console fish finder when I am fishing from the bow and utilize the bow fish finder at a brightness level varying from 6-10 (10 being the brightest). When I go back to the console to move locations I hit “standby” on the bow fish finder, then reactivate my console fish finder. The last time my cranking battery “died” I was on the water for 4 hours and did utilize the live well on the “timer” aspect (1 minute on/3 minutes off) typically for 2 cycles, then ill manually shut that switch off. I do not run the live well continuous. When I cannot start the outboard motor the voltmeter gauge on the dashboard has been at approximately 12 volts and did not start, eventually turning over after sitting for 10-20 minutes. The most recent time, the outboard motor would not turn over and the voltmeter gauge on the dashboard was at approximately 10 volts and never started.
Question: Is this cranking battery insufficient? Or is there another problem? Any recommendations?
Presently, I find no issues/complaints with the trolling motor batteries and the specifications for these are also shown below just for reference.
HUMMINBIRD HELIX 9 MSI G3N
Power Draw 1 Amp Power Input 10.8-20 VDC Power Output Peak-to-Peak 8000 Watts Power Output RMS 1000 Watts
HUMMINBIRD HELIX 10 MDI G4N
Power Draw 2.7 Amps Power Input 10.8-20 VDC Power Output Peak-to-Peak 8000 Watts Power Output RMS 1000 Watts
Cranking Battery (13.20 on battery test multimeter)
BRAND: https://www.interstatebatteries.com/...ategoryid=true
Manufacturer’s Specifications:
· Part Number 24M-RD
· Group Size 24M
· Cold Cranking Amps (CCA) 400
· Cranking Amps (CA) 500
· Reserve Capacity (RC) 75 minutes
· Amp Hours (Ah) N/A
· Length 11 inches
· Width: 6 7/8 inches
· Height: 9 inches
· Termination Code: Common Code M
· Voltage: 12
· Wet/Dry: W
· Technology: Flooded
BRAND: https://www.interstatebatteries.com/products/srm-27#
Trolling Battery 1 (12.95 battery test on multimeter)
Trolling Battery 2 (13.30 battery test on multimeter)
Manufacturer’s Specifications:
· Part Number SRM-27
· Group Size 27DC
· Cold Cranking Amps (CCA) 600
· Cranking Amps (CA) 750
· Reserve Capacity (RC) 160 minutes
· Amp Hours (Ah) 88
· Length 12 3/4 inches
· Width 6 7/8 inches
· Height 9 inches
· Termination Code Common Code M
· Voltage 12
· Wet/Dry W
· Technology Flooded