Battery weight

Almot wrote:

The only exception are Lithiums.

THIS is the only answer which really matches the OPs real request.
VERY expensive though.

Since the battery will be attached to the boat......weight really IS an important consideration as the battery weight might ensure that the boat goes TO THE BOTTOM if it ever tips over.

A conventional is not a good choice because the electrolyte will be contaminated if it is immersed in water. An AGM would not have that problem.

I think what he really needs is a small LI type in the boat and a good AGM in the trailer.

Trying to use a single battery for both is, I think, a big mistake.

For Trolling you want a sealed battery, AGM is best for that since if the battery is turned over it does not leak (liquid filled types can even if Sealed Valve Rgulated). Beyond that. the watts per pound is fairly constant across all lines, manufactureres and types.. Watts = Range when trolling,, Would not want you to get to middle of lake and "NO POWER".

JnJnKatiebug wrote:
I am looking for 40 pounds or less. I think I will go with a smaller less AH battery. I can paddle if it goes down. I use the trolling motor on the lowest speed to conserve battery power. We sometime float up to 30 miles per trip. Over half of that will not require a motor as the current takes you right along, but in the big holes of water with little or no current you have to paddle. I don't mind the paddling but it takes away from the fishing, thus the trolling motor. I may have to bite the bullet and get the Lithium Ion but $450 for a 10 pound 35AH battery is a little hard for me to grasp. Some of my friends have Yeti ice chests, I don't get that either. They just have more ice to take home than I do at the end of the trip.

I suggest you do your homework.

Much cheaper

I am looking for 40 pounds or less. I think I will go with a smaller less AH battery. I can paddle if it goes down. I use the trolling motor on the lowest speed to conserve battery power. We sometime float up to 30 miles per trip. Over half of that will not require a motor as the current takes you right along, but in the big holes of water with little or no current you have to paddle. I don't mind the paddling but it takes away from the fishing, thus the trolling motor. I may have to bite the bullet and get the Lithium Ion but $450 for a 10 pound 35AH battery is a little hard for me to grasp. Some of my friends have Yeti ice chests, I don't get that either. They just have more ice to take home than I do at the end of the trip.

As to the light weight - sorry, no dice here. They are all heavy. Flooded are heavy, AGM are a little heavier and cost more. If you want 90-100 AH, it will weigh 60 lb, give or take a few lb.

The only exception are Lithiums.

Weight is said to be an issue, but what is the weight limit the OP would consider?

AGMs are heavier than flooded for the same capacity but make for a better hybrid/dual purpose battery for trolling/house duty.

Just make sure you can meet its recharge requirements, meaning approaching 30 amps per 100AH on less $$ AGMS amore for the higher$$ AGMS like Lifeline, northstar and Lifeline.

If you are limiting yourself to a wet/flooded battery then just get whatever you can lift easily enough, for cheapest.

JnJnKatiebug wrote:
I want a lightweight battery to use on the trolling motor and also use to charge phones and use the fillet knife when tent camping. Also, everything is in water proof bags or tote and they float so when you tip over (it happens but not often) everything floats.

Ok, got it. Buy whatever marine hybrid you can afford. You'll get what you pay for. I would buy a cheaper one, since motor is hard on a battery if you troll often. Besides, you have no means of recharging in canoe trip, this will shorten its life too.

Battery won't float :)... And it weighs more than the displaced water, it will act as a negative flotation if you get swamped. Though unlikely occurrence with those pontoons/amas and on calm water.

Camp gadgets on such a trip should be self-sufficient. Unless you talk all the time, a phone battery should last a few days trip. Use a non-powered fillet knife, it's not like you're working on a sturgeon.

Check out Odessey Batteries....XS Power... or Kinetik

lc0338 wrote:
trolling battery review 2016

Funny review. They rate Chinese UPG/UB higher than Optima. I have 100 AH UPG, and it's a cr-ap indeed. Don't have Optima, but only heard good things about them.

lc0338 wrote:
clicky - not cheap

I hope they get cheaper by the time I need new batteries. Expensive, but you only need half as many batteries, effectively cuts the price in half...and 10X as many cycles...makes them cheaper per cycle already, doesn't it? But more than my wallet will stand right now!