Terrova lithium battery suggestion

[Creek Chub 1]

I’m getting ready to upgrade to a terrova TM and considering the change to lithium. 
 

I’m also considering on 24 v battery vs two 12v. 
 

What amp hour should I go with ? I see some suggestions that 60ah will work but would like some opinions 

 

thanks

[Tennessee Boy]

Yes a 60ah will work.  The question is how long will it work.   That depends on what boat you have,  how long you typically stay out on the water,  and to some degree how you fish.  I have an aluminum Ranger RT188.  I’ve taken some measurements on how many amps my trolling motor is pulling.  A 60 ah 24 volt would meet my needs for almost every trip I make to the lake.  Still I personally would want more than 60ah.  It’s comforting to have a more power than you need.  If you have a big fiberglass boat,  you will want much more than 60ah.

 

You also want to make sure that the maximum draw on the TM you are considering is below the maximum current  allowed with the battery.  I don’t think that will be an issue but it might be close.

[Creek Chub 1]

1 hour ago, Tennessee Boy said:

Yes a 60ah will work.  The question is how long will it work.   That depends on what boat you have,  how long you typically stay out on the water,  and to some degree how you fish.  I have an aluminum Ranger RT188.  I’ve taken some measurements on how many amps my trolling motor is pulling.  A 60 ah 24 volt would meet my needs for almost every trip I make to the lake.  Still I personally would want more than 60ah.  It’s comforting to have a more power than you need.  If you have a big fiberglass boat,  you will want much more than 60ah.

 

You also want to make sure that the maximum draw on the TM you are considering is below the maximum current  allowed with the battery.  I don’t think that will be an issue but it might be close.

My boat is a 16’ war eagle. I fish rocky rivers in VA with moderate current and would use spot a couple hours each trip. 

I’ll check out the specs to compare the 60 & 100 AH 24v options

 

Its good to hear the 60 would probably work though 

 

Thanks

[Tennessee Boy]

I think 60ah would work well with that boat.  I’m assuming that you are using an outboard to get you to where you want to fish and using the trolling motor only for fishing.   I have an 80lb thrust Ultrex which should be similar in power usage to the 80lb thrust Terrova.  My TM pulls 41 amps on 10,  8 amps on 5,  and 2.5 amps on 3.  A 60 ah battery would power my TM for 2.5 hours on 10,  7 hours on 5 and 24 hours on 3.  I’m on 3 or less 90% of the time when I’m fishing.  Of course there might be days when I’m fishing in current and wind where I’m running between 5 and 10 all day.  Those days are rare but it’s good to be prepared for them.
 

You also ask about 24V vs two 12V batteries.  I think that’s a personal choice for what works best for your situation and what fits well in your boat. One advantage to two 12Vs is if/when one dies you still have another battery that could be used for something else.  

[Creek Chub 1]

3 hours ago, Tennessee Boy said:

I think 60ah would work well with that boat.  I’m assuming that you are using an outboard to get you to where you want to fish and using the trolling motor only for fishing.   I have an 80lb thrust Ultrex which should be similar in power usage to the 80lb thrust Terrova.  My TM pulls 41 amps on 10,  8 amps on 5,  and 2.5 amps on 3.  A 60 ah battery would power my TM for 2.5 hours on 10,  7 hours on 5 and 24 hours on 3.  I’m on 3 or less 90% of the time when I’m fishing.  Of course there might be days when I’m fishing in current and wind where I’m running between 5 and 10 all day.  Those days are rare but it’s good to be prepared for them.
 

You also ask about 24V vs two 12V batteries.  I think that’s a personal choice for what works best for your situation and what fits well in your boat. One advantage to two 12Vs is if/when one dies you still have another battery that could be used for something else.  

Thanks for the detailed info and calculations, that helps a lot.

 

 

I run a jet and am trying to stay as light as possible. Converting to lithium will shave off about 50 lbs and should be helpful