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.

I currently have 3 batteries for 36v ultrex , what is my best bet for weight reduction and what is best cranking battery option for weight reduction also ? Thanks

I have been eying switching to lithium. The thing holding me back is the cranking battery ordeal. I don't want to have mixed batteries, either all agm or all lithium.

There is no starting battery ordeal, you buy a lithium with a starting profile....

Which battery ?

I can speak for RELiON batteries:

For cranking applications use the following:
https://relionbattery.com/products/lithium/rb100-hp

Our RB100-HP is a dual-purpose 12V, 100 Ah lithium battery. Our HP Series batteries are high performing dual purpose deep cycle batteries that can handle both starting and cycling. The RB100-HP has increased peak amps over our standard batteries. This increase in peak amps can be used to start motors, electric start generators and other high amp draw devices. After starting, the battery can double as a house battery providing power for peripherals, accessories and other onboard needs.

For Trolling motor batteries I use the following:
https://relionbattery.com/products/lithium/rb100

Longer runtime = more recreation time with the RB100. This 12V 100Ah deep cycle lithium battery is the perfect replacement from a group 31 AGM, GEL or lead-acid Battery. Weighing in at only 30 lbs it’s a lightweight alternative to lead-acid and one of our most popular lithium batteries.

Any lithium batteries made in the USA ?

What is the problem with Lithium for troller and AGM for starting and accessories? Assuming charger can handle mixed profiles.

AGM you can leave plugged in 24/7/365. I have read lithium is best stored not plugged in and not fully charged.

I can't bring myself to spend somewhere between 2-10 times the cost of an AGM to save a few hundred pounds. Bass fishing is expensive enough as it is. I am thankful to you pioneers who are helping advance the technology though. Due to your sacrifice this technology will one day be affordable.

No

Trying not to support china anymore , will be tough though as they make almost everything.

We you can thank our governments environmental regulations for this.

So weight wise you're talking about saving approximately 25 pounds per battery with a 29 size? Is that about correct? I'm considering them, but have never had real issues with most lead acid batteries. I don't fish as much as I used to but still get out 50 - 60 days a year. Most of my lead acid's have lasted at least three years and some of them 4 or just a little longer. Trying to justify the price vs the weight advantage and for me (again, just for ME) I can't see it until lithium's get MUCH cheaper.

To each his own people are on here weekly asking about new agm batteries etc...

Ive never seen a thread where someone had to replace their lithiums....

I like to save money, buy lithiums once for the rest of your life unless your fishing every single day for the next 14 years you wont get to the number of duty cycles lithiums are supposed to be good for at a minimum.



lithiums are already down to 350 that is LESS than I paid for my last agm start battery.