Thread: Need some help with my helix 5 depth finder

Originally Posted by LouisianaFishNut

Mine is also wired to the TM battery...if I move it to the cranking battery, and use it all day, is there any risk of it running down the battery to the point of being unable to crank the motor? (Non-electrician here!)... I've had my depth finder kick off at the end of the day as well, only to discover the trolling batter was running down. Hit the pedal and the screen would kick off.
Thanks all.

I fish for about 6 hrs at a time and my unit is always on and hooked up to the cranking battery.....no problems with it running the battery down.......YET!.

Originally Posted by LouisianaFishNut

Mine is also wired to the TM battery...if I move it to the cranking battery, and use it all day, is there any risk of it running down the battery to the point of being unable to crank the motor? (Non-electrician here!)... I've had my depth finder kick off at the end of the day as well, only to discover the trolling batter was running down. Hit the pedal and the screen would kick off.
Thanks all.

I run two depth finders plus my live well with a timer...all day and I can still crank my 90 Yamaha up. The fish finder will not pull the battery down it draws small mili-amps. The TM however draws lots..and even tho the voltage drops as the battery is being used...it will still run a electric motor ( just not as strong) the problem is the complex chips and integrated circuits in todays fish finders...they have to have close to full voltage or they will shut down.