12v accessory system batt recommendations

[divemedic]

Anyone have experience with lithium accessory batteries. I’m going to be setting up a secondary 12v system and thinking Lithium or lead crystal. Pros Cons?

System will be based off of a redarc bcd1225.

 

[lumpy70]

Following...

 

[Greg_B]

I've not kept up on the alternative batteries and am curious about the responses as well. Wonder if there might be more input from the folks who frequent the Power Systems forum.

gb

 

[Bazooka]

Lithium will be horrifically expensive for a decent size battery. I recommend the Caterpillar AGM batteries. Along with their lead acid batteries they are decently priced for their performance. Have one as a secondary battery that's nearly 200Ah and been going strong for years. Being charged by a Redarc BCD1225.

 

[divemedic]

Do you know who makes the caterpillar battery?

For now I’m only going to be running my ham radio and a few USB constant hot off the 12v system but plan to add a fridge in the future.

 

[Bazooka]

I don't know the actual manufacturer, they are all Caterpillar branded.
Running a 40L fridge, some LED lighting, radio and USB charging of phones etc I can get nearly a weeks worth of power out of it. I also use a Cat 1000CCA start battery but they do many different models. You don't have to go that big of course. I use their small AGM in my ride on lawnmower.
Download the catalogue here
Caterpillar Battery Cross Reference Guide

 

[divemedic]

Awesome thank you!