I got some new electronics and was told i need to look into getting a lithium battery. Are they worth it? If so what should I go with?

Need more details on your setup.

Are lithium worth it, sure they are. But may be overkill for what you need.

I have an 80 lb thrust fortrex with a garmin echomap 126sv and garmin echomap 93sv.

Thanks

For that I would just look into the following batteries. Lithiums are great but not sure you'll need it for that setup.

The TM should be on it's on 24v setup and the units and cranking motor (if you're on a boat and not kayak).

Best: (Most Expensive)
X2 Batteryhttps://www.batteriesplus.com/productdetails/battery/marine-and-boat/dual-purpose-(starting_cycling)/sli31agmdpm
Northstar

Better: (Not as Expensive)
Duracell 31M

I have 3 of the Duracell brand batteries and they are great.

What do you mean by 24v setup? Like it should be powered by 2 batteries?

Correct...Unless your 80 lb thrust Fortrex is 12v, you will need 2 batteries in parallel to support the 24v system.

Oh wow. I never realized i could run them in parallel. Probably would get a lot more fish in the boat with a full speed trolling motor!! Thanks for your help.

Just don’t run 24v to your graphs

Parallel, voltage stays the same, amperage or current increases.
Batteries in series, voltages add.

This video will help walk you through how to determine what size battery you need for your electronics.

You wouldn't be the first.

Fished with a guy in our club one time and was complaining about how slow his brand new 36V trolling motor was with brand new batteries.

I opened his back compartment and sure enough he had all 3 batteries connected in series, but the trolling motor cables were connected to the same battery. When I reconnected to batteries 1 and 3 and told him to try it out, he liked to have thrown himself out of the boat.

When in parallel, cables are connected to same battery and jumpers are run from + to + and - to -

In series, jumpers run from + to - and cables are connected to different batteries.

Correct...used the incorrect terms.

They need to be in a series. My apologies.

Parallel... series... whatever! I bought 2 new duracells to power my TM and am going to use that video for my set up. I have 2 of those duracells currently, but one for cranking/starting/electronics and other for TM. Just going to keep the older one for cranking/starting/electronics and replace the TM battery with the 2 new ones.

Honestly can't wait to see what difference it makes. I feel dumb lol

X2 power are great

Just curious why you posted the AGMs as the best and then listed the Duracell Lead Acids as Better? Have you used the Duracell AGMs?

I have blue tops right now and am considering the switch to Duracell AGMs at less than half the price of the Blue Tops. They aren't that much more expensive than the Duracell Lead Acids.