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dawg23
Mississippi St. Fan
Baton Rouge, La
Member since Jul 2011
4603 posts

re: Anybody Have Problems with Mercury's 8 Cylinder Four Strokes on a Bass Boat?
I assume you’re getting the 75 AH ?


AlxTgr
LSU Fan
Kyre Banorg
Member since Oct 2003
71229 posts
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re: Anybody Have Problems with Mercury's 8 Cylinder Four Strokes on a Bass Boat?
Pretty sure I am going to risk it with the 45s. Here's why.

I read review after review of 50 to 54 AH batteries delivering multiple day's usage. I do not fish tournaments. I do not fish moving water. I do not fish all day. I almost never run my motor over 3/4 speed. Finally, I would like to actually run these down a bit so I can charge them more often on the 3 bank charger with my AGM.


cbr900racer22
LSU Fan
City of Central, LA.
Member since Sep 2009
1035 posts

re: Anybody Have Problems with Mercury's 8 Cylinder Four Strokes on a Bass Boat?
I have the precision as well. Why are you worried about running them down? Each bank charges separately and will go into maintenance mode for that particular bank when ready. If you get a lithium with the BMS it will shut the battery off regardless. That is how I am set up.


AlxTgr
LSU Fan
Kyre Banorg
Member since Oct 2003
71229 posts
 Online 

re: Anybody Have Problems with Mercury's 8 Cylinder Four Strokes on a Bass Boat?
quote:

Why are you worried about running them down?
Because I worry about stupid shite and make up problems in my head.

It just bothers me to think I am putting a battery on charge that is reading 93%. I can't defend it and am not saying anyone else should be bothered.


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dawg23
Mississippi St. Fan
Baton Rouge, La
Member since Jul 2011
4603 posts

re: Anybody Have Problems with Mercury's 8 Cylinder Four Strokes on a Bass Boat?
quote:

Pretty sure I am going to risk it with the 45s. Here's why.

I read review after review of 50 to 54 AH batteries delivering multiple day's usage. I do not fish tournaments. I do not fish moving water. I do not fish all day. I almost never run my motor over 3/4 speed
Makes sense. And I know you are thorough in doing research.

as far as the charging frequency - I haven't owned one of these batteries, so I don't know what the manufacturer says about charging.

I know AGM's are a different breed altogether, but I have a 48v hunting cart with AGM's and 3 AGM's in my boat. I have always been told by the dealers, and have always made it a practice, to charge them after every use - and then leave them on charge. I know the charger on my cart is programmed to go into a "leveling" mode and then basically shut down until the voltage drops to some level that tells the charger to come back on for a while.

I'd want to know a lot more about lithium batteries and chargers before I'd leave them continuously hooked up to the charger.


AlxTgr
LSU Fan
Kyre Banorg
Member since Oct 2003
71229 posts
 Online 

re: Anybody Have Problems with Mercury's 8 Cylinder Four Strokes on a Bass Boat?
quote:

I'd want to know a lot more about lithium batteries and chargers before I'd leave them continuously hooked up to the charger.


I am attaching a breaker(used as a switch) to both lithiums so I can leave my AGM on charge. May be over cautious, but I will sleep better.

>


dawg23
Mississippi St. Fan
Baton Rouge, La
Member since Jul 2011
4603 posts

re: Anybody Have Problems with Mercury's 8 Cylinder Four Strokes on a Bass Boat?
Sleep is underrated. Anything to make your world safer and help get a good night's rest is worth it (within reason, of course).

I hope those lithium batteries work well for you. I stopped fishing tournaments quite a few years ago, so like you, I rarely run my batteries down to a low level.

The kind of situation I worry about (there's that "worry" term again), is having a breakdown with the big engine, or running out of fuel, bending a prop or .. whatever, and having to rely on the trolling motor to get me to a landing or "safe harbor" during a storm. So I use two "full size" trolling motor batteries, JIC.

I still want to see pics of your new Cat.


AlxTgr
LSU Fan
Kyre Banorg
Member since Oct 2003
71229 posts
 Online 

re: Anybody Have Problems with Mercury's 8 Cylinder Four Strokes on a Bass Boat?
quote:

So I use two "full size" trolling motor batteries
My fishing these days mostly involves small reservoirs with a very short run. When I do fish swamp systems with long runs, I am not using electronics much at all, so the battery drain is tiny.


Elusiveporpi
LSU Fan
Below I-10
Member since Feb 2011
2170 posts

re: Anybody Have Problems with Mercury's 8 Cylinder Four Strokes on a Bass Boat?
I've been running lithium's for 3 years now with no issues. 2 60AH trolling and 1 54 cranking. I sight fish reds for the most part which is basically running the trolling motor for 5 hrs straight on #4-5. I have fished 2 days on a single charge.

I saved about ~130 pounds in the switch, which is a decent amount in a hull that weighs right over 500 pounds.



AlxTgr
LSU Fan
Kyre Banorg
Member since Oct 2003
71229 posts
 Online 

re: Anybody Have Problems with Mercury's 8 Cylinder Four Strokes on a Bass Boat?
Ordered 2 60AH batteries today. Chickened out on crank battery. Boat comes with a large AGM, so I will wait for its demise, then probably switch to lithium then.


Elusiveporpi
LSU Fan
Below I-10
Member since Feb 2011
2170 posts

re: Anybody Have Problems with Mercury's 8 Cylinder Four Strokes on a Bass Boat?
quote:

Ordered 2 60AH batteries today.


what brand did you end up going with?


AlxTgr
LSU Fan
Kyre Banorg
Member since Oct 2003
71229 posts
 Online 

re: Anybody Have Problems with Mercury's 8 Cylinder Four Strokes on a Bass Boat?
Amped Outdoors.


Elusiveporpi
LSU Fan
Below I-10
Member since Feb 2011
2170 posts

re: Anybody Have Problems with Mercury's 8 Cylinder Four Strokes on a Bass Boat?
Glad they had some back in stock. You should be pleased with the lithium’s, voltage stays up and you will never have that slowing down of the t motor. ( until it dies completely)


dawg23
Mississippi St. Fan
Baton Rouge, La
Member since Jul 2011
4603 posts

re: Anybody Have Problems with Mercury's 8 Cylinder Four Strokes on a Bass Boat?
quote:

Chickened out on crank battery. Boat comes with a large AGM
That's wise. There's no benefit in risking a voided 3 year warranty.


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AlxTgr
LSU Fan
Kyre Banorg
Member since Oct 2003
71229 posts
 Online 

re: Anybody Have Problems with Mercury's 8 Cylinder Four Strokes on a Bass Boat?
quote:

Glad they had some back in stock.
This was an issue with many of the sellers. Impulse looked to be a good value with longer warranty. No 54s in stock. Was scared the Millertech 45s wouldn't cut it.


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HoumaTigerFan
LSU Fan
Member since Jan 2008
5282 posts

re: Anybody Have Problems with Mercury's 8 Cylinder Four Strokes on a Bass Boat?
99.9% Chance you’ll need a new propeller. They run a significantly lower pitch. The torque is amazing and speed compared to your current model.

This thing will make your two stroke seem like a child in the hole shot department. Grunt.

They’ve had some minor issues regarding throttle adjustments but that’s on the installers not Mercury.

I’m jealous. Good luck.


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