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i run a separate one I dont want the big screen to die...also I do a lot of bow/stern electric motor fishing on atown where the gas motor isnt ran and charged off the gas motor...
 

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I run my three finders and the gas motors on one large battery which is brand new. Then I run my Electric on a bank charger and two batteries. I am thinking about upgrading to a 3 bank charger though? I use the electric so much I run it down to nothing every day.

Everyone once in a while I turn on the big motor for a minute just to make sure it is adequately charged. But since I upgraded the main battery I haven't had any problems. Before the upgrade I drained the main battery the second day of the Pueblo tournament:mad:
 

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I run my three finders and the gas motors on one large battery which is brand new. Then I run my Electric on a bank charger and two batteries. I am thinking about upgrading to a 3 bank charger though? I use the electric so much I run it down to nothing every day.

Everyone once in a while I turn on the big motor for a minute just to make sure it is adequately charged. But since I upgraded the main battery I haven't had any problems. Before the upgrade I drained the main battery the second day of the Pueblo tournament:mad:
I do the same as Neal and also have a 3 bank charger (1 battery for engine/finder(s) and 2 batteries for electric trolling motor). Never had a problem with interference running on the main battery and never ran out of juice.
 

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Discussion Starter · #11 ·
I run my three finders and the gas motors on one large battery which is brand new. Then I run my Electric on a bank charger and two batteries. I am thinking about upgrading to a 3 bank charger though? I use the electric so much I run it down to nothing every day.

Everyone once in a while I turn on the big motor for a minute just to make sure it is adequately charged. But since I upgraded the main battery I haven't had any problems. Before the upgrade I drained the main battery the second day of the Pueblo tournament:mad:
What type of big battery are you running 29 series, gel or regular?
 

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What type of big battery are you running 29 series, gel or regular?
Regular.

Like I said earlier my two batteries on the bank are strictly for the Terrova. But even trolling I use them all day. I get my kicker to the speed I need or want then I use my I-Pilot set at 5 as a rudder to turn. That way I can sit anywhere in the boat. Lund built it with three battery spots. But for some reason the previous owner settled for two and the two bank charger. The two original batteries are now three years old. This winter my new upgrade will be a 3-bank and good batteries!
 

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My elite 7-chirp runs off the main engine battery. Have never had an issue in the 5 years I've owned it. Its a 5-year old regular lead/acid Interstate 29.

Ive got two batts for the Terrova, they are the regular lead/acid Interstate 29s. One is 5 years old and 1 is 3 years old.

I run a 3bank charger and use it EVERY time I get back from fishing.
 

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I have minnkota chargers, I leave them plugged for days sometimes cause I forget to disconnect after they're juiced up but they can stay plugged in 24/7 if it's a good charger.
 

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I run one 31 series battery for my 3 finders, big/small motors, and 2 electric downriggers. It last plenty long.

If you're concerned about the run time just do the math. I measured my finders, Gen 2 HDS-5/7/7 & LSS2. Together they all pull 2.65A/hr. The 31 series bat has a reserve capacity of approximately 200. De-rate per manufactures specs and equate...

(200 x 0.6)/2.65A = 45Hrs of run time

I have run my setup for just about that time duration without charging and I have been fine. There's other factors but this is the general concept.

If you're looking to run just that one fish finder and motor you'll be plenty fine. Use your TM bats for backup if needed. Those bats you want separate.
 
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