Which battery should you connect all electronics too? Trolling motor series batteries or Cranking battery?
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Which battery should you connect all electronics too? Trolling motor series batteries or Cranking battery?
Trooling battery, cranking batteries are designed for quick burst of amp withdrawals whereas the deep cycle ones are built for slow continuas useQuote:
Originally Posted by SlipKnot337
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To me, it depends on how many electronics your talking about. You definitely don’t want to hook up to trolling motor batteries as can cause a ton of interference in the electronics. Cranking battery if used needs to be a large one with lots of amps and a lot of guys will even use a series 31 deep cycle battery. I have all my electronics on their own deep cycle series 31 and a separate cranking battery for the motor and it’s a standard 550 amp cranking battery so running 4 batteries. How large a boat motor are you running and how many amps does the manufacturer require? With the new Humminbird g3n units Humminbird is now adding a wire assembly to hook up to your on board battery charger that has a ferrite coil in it to suppress any electrical interference from the charger that can back feed into your electronics even tho when fishing, it’s not plugged into 110 charging. Hope this helps you in your question.
Cranking battery
If you have a lot of electronics and accessories, it's best to run a separate house battery.
As mentioned, running them off of the trolling batteries can cause interference, and you definitely don't want to run your cranking battery down.
If you're only talking about a fishfinder and an aerator, then the cranking battery should work, provided that you don't spend more than a few hours on the water at a time.
Never connect electronics to the TM battery. When you step on the go pedal or button there is a surge on that battery(s). Electronics do not like surges.
I tend to use separate batteries for each function. I currently have one battery for running the engine and boat lights, one battery for fish finders and three batteries for my trolling motor. I am about to add some additional light units to my pontoon so I will move all the boat lights to a new battery.
I am not sure why everyone feels that it's necessary to try and get you to spend more money, rather than answer a simple 2 choice question. Good luck
Sent from my SM-G900V using Crappie.com Fishing mobile app
My choice was simple. I have one GEL marine battery that runs everything and cranks my 20HP OB. Luckily I don't get interference from TM or engine alternator when I run either of the two Lowance 7' DFs, plus my battery gets recharged when I run the outboard.
In previous larger boats with multiple batteries I ran everything except the TM off the start battery, though to be honest even up to a 60HP Yamaha/ both batteries were deep cycle group 27s rather than one start and one deep cycle. Never had a problem on either side.