Im not a fan of one battery like that. I travel a lot if it had a issue I would be buying 3 to keep going. w 3 separate batteries if one has a issue I can buy just one and keep going.

50ah are small and are as low as 350 ea on amazon

Be willing to bet it would be better than my current setup (3 continental group 31 and fish sun up to sun down ) and last longer .

Newer technology vs. what you heard from the early stages of lithium have come a long ways and are much safer than the earlier, more volatile versions.

Back when I raced RC cars (2000's until 4-5 years ago) LIPO technology available at that time came in soft packs, could get damaged easily and catch fire, catch fire while charging, etc... I watched as off-road RC cars landed wrong, shut down, and caught fire and thought, glad I race Nitro cars... lol

You know who else used to be one hell of a RC car driver, Jeff Welch of Bass Champs. We use to race together when we were kids. lol





Technology has improved and most chemistries you see used now is LiFePO4 which has proved to be much safer, less volatile, and are mostly encased in hard shells to keep from getting damaged.

https://medium.com/battery-lab/a-lifepo4-battery-vs-lithium-ion-polymer-battery-6a028111efa3

Lithium-ion polymer (LIPO) battery
A lithium ion polymer battery is a kind of rechargeable battery that mainly relies on the movement of lithium ions between positive electrode and negative electrode to work. Lithium ion batteries use an intercalated lithium compound as an electrode material. At present, the commonly used cathode materials for lithium ion batteries are: lithium cobalt oxide (LCO battery), lithium manganate (LMO battery), lithium-ion ternary (NCA, NMC battery), and lithium iron phosphate (LiFePO4 battery).


Lithium iron phosphate (LiFePO4, LFP) battery
A lithium iron phosphate battery is a type of lithium ion polymer battery that uses LiFePO4 as the cathode material and a graphitic carbon electrode with a metallic backing as the anode.
The LiFePO4 battery, also called the LFP battery, is a type of rechargeable battery. It is the safest Lithium battery type currently available on the market today. It is made to be small in size and light in weight, and the cycle life can reach thousands of cycles.

I was too nervous at first , along with the price of these batteries, and held off for some time but finally decided to make the change. I run REliON batteries now, (2) RB-100 (100Ah) for trolling and I run a RB-100HP for cranking and electronics and absolutely love them. I also recently added the Power Pole Charge and now only plug into shore power every once in a while to make sure everything balances properly.

Lots of $ spent but well worth it to be on the water as long as I want without any worries.

BOOM this went down last night. Swapped out the 3-50amp for the 100amp. Highly recommend the Ionic Lithiums. You can get them from Andrew at Drewcraft.com. Ran them for 2 years and not one problem. Upgraded to the larger ones as I will be fishing the NPFL tour this year and cannot wait. If you have questions, just let me know....tight lines.

The major problem I see with a lithium starter battery is Mercury recommends and AMG for starting purposes... I'd hate to have a problem and have Mercury turn down a warranty claim because I used the wrong type battery... Everyone preaches get a used boat with warranty still left, or purchase the extended warranty... Well, if you're gonna go to all that trouble, and money, only to void the warranty on the engine... I'm like a lot of guy on this topic... Until lithium batteries price come down I'm staying with lead batteries... And, if they ever do come down to the price point of lead they'll have similar warranties... Dan

BOOM this went down last night. Swapped out the 3-50amp for the 100amp. If you have questions, just let me know....tight lines.

BOOM this went down last night. Swapped out the 3-50amp for the 100amp. Highly recommend the Ionic Lithiums. You can get them from Andrew at Drewcraft.com. Ran them for 2 years and not one problem. Upgraded to the larger ones as I will be fishing the NPFL tour this year and cannot wait. If you have questions, just let me know....tight lines.

Commerical interruptions are the worst. Seriously though, 50 amps is about half of the amps from a standard lead acid deep cycle trolling battery, the 125 amp is over $1000. Even if the last over 10 years, you could still stay under that price point if you bought new 50 amp lead acid battery 2 years and still not hot the break even point. Why would anyone pay that price?

For. 125 ah battery to make sense, assuming a warranty of at least 5 years the price would have to be at the most $500, and around $225 for a 50 amp. Big lipos just don't make financial sense yet for american retailers, but then again from unit cost I'm sure they are marking them up 400% from chinese suppliers, and that from what I've seen alibaba.

Jeff do you have a link for these $536 100ah batteries? The link above is not them. Thx