You aren't noting that I said "IF". My lost likely suspicion is that the Group 31 AGM will suffice. There's still a chance testing the worst case scenario could show otherwise. A 5th battery that's small, lightweight, and not terribly expensive over time is NOT stupid if I were to learn that running my electrical load for a long day won't do.

If you want to flag stupid, look elsewhere; it certainly abounds in bass fishing. Start with hauling a charger of up to 30 pounds in weight around a lake all day when there are no AC receptacles to power it. The battery I might add weighs half the weight of the charger I removed, and takes up less space. Ridiculous gadgets and solutions that qualify as laughable abound.

Instead of reading carefully (reading comprehension issues?) you chose to assert that I might qualify as "stupid" or "lacking common sense." I assure you the personal attack is totally unfounded, and you must have met some rather pathetic engineers. Actually, that you resort to personal derogatory comment would say that possibly you are the one who lacks common sense? How do you know what my electrical load will be, or how many hours I spend on the water in an outing?

Easy bud. I know my amp load. Apparently you don’t know your own or you would know what you need for a battery.

Either way I’m running 5 12” graphs two live scope two livewells mega 360 hydro wave radio all on one battery. I’ve shared that Info many times.

A 5th battery is stupid if you choose to take that as a derogatory comment about you personally that is on you.

You think you have it all figured out because you took out your charger but talk about carrying a 5th battery.......

You have proven my point about common sense.

Jeff, are you running dual lvs 32’s on the TM or 1 there and one on the transom?

two on tm, one in each view, two screens. Havent had the panoramic view help much if at all yet, but also didnt have it on in the spring. Should be good for bed fish, in Iowa the water is NEVER clear enough to see any fish on beds.

Your running 5 graphs? Are you fishing or just watching TV all day LOL!

Has anyone looked into batteries from TOBattery ? They
seem to have everyone beat on price. Not looking for brand loyalty or bashing here, just curious if anyone has any dealings with them.

Ooooooops! My bad.

Jeff - Sent you a PM.

First I’ve seen of that one, there’s a bunch on eBay of different names. Only problem that might come from a no name, warranty and getting a replacement.

I posted those a page or two ago. Cheapest I’ve seen.

I did not get a pm from you. Jeff

I got a couple of these to try for my Bass Hunter Ex. Can't beat the price.

https://www.amazon.com/LiFePO4-Battery-Cycles-Miady-Rechargeable/dp/B08MJW69N3

12v 36ah LiFePO4 for $110.

Haven't tried them out yet. I'll post a review once I get a chance to us them.

36ah for 120 each would be great for most fun fisherman. I’ve seen a few guys run those.

I know RELiON is not as inexpensive as some of these posted but they have great technical sales that can help you to design a system to fit your needs and excellent customer and technical service to help. Please forgive me for my bias but when I bought my setup (over 2 years ago) there weren't all these options flooding the market, basically Lithum Pro and RELiON, so I chose a company that I deemed reputable and they have thus far. To me these are big expensive purchases and I didn't want to take the risk of buying some of these other, cheaper, versions just to save a buck up front. I've had one fail and I would have been pissed if I was left out to dry so make sure you have support from whoever you purchase from. RELiON had me go through the paces to make sure the battery was at fault but when we did they sent me a brand new replacement as quickly as possible.

Here is a cool technical data sheet explanation done by RELiON, just thought I would share some good information.
https://youtu.be/BT8cHqY3epc

I bought 2 ionic 12V 50ah batteries for my trolling motor and finally got the chance Saturday to try them out. All I can say is WOW! These batteries are everything they say they are. I ran my trolling motor for 6hr straight with a 15-20mph North wind and checked the Bluetooth app and still shows 90% charge. I worked these batteries hard fighting the wind went home around 1:00pm just wish the fish where biting LOL!