Lithium batteries and convertor

[Kretzer]

I need to replace the crap battery in my 310 GK. I discharged it all the way and I think it sat out and got frozen as it lasts less than 8 hours with just a couple of lights on. I am thinking of getting two lithium batteries at 100 Ah. Would anyone be able to recommend a new converter for this set up? I know the progressives are there for lithium batteries but I don’t know what size I should get and if I need a bigger one whether I need to Change the wires from the converter to the battery and panels.

Finally if anyone in Canada can recommend a good dealer for decent lithium batteries would certainly be appreciated. There are cheap ones on Amazon but I’m a little concerned about the quality

Thanks

 

[JKellerJr]

If you replace the converter with the same size (amps) as you have currently its a direct swap. Its probably 60amps, that's what mine was when I swapped it when I added 2 battle born lithium's

 

[JKellerJr]

Here you go:
https://www.progressivedyn.com/lithium-converter-replacement-units/

 

[jmbopp]

I had a conversation with a Battleborn rep yesterday. He recommended 50A max for a 100AH Lithium battery, or 100A for 2 Battleborns.
I have a 55A IOTA converter for better charging to my dual 6V batteries. I mounted it inside the front pass-through so it's a short run to the batteries. If I go lithium I'll replace it with a lithium charger in the same spot.

 

[Kretzer]

I had a conversation with a Battleborn rep yesterday. He recommended 50A max for a 100AH Lithium battery, or 100A for 2 Battleborns.
I have a 55A IOTA converter for better charging to my dual 6V batteries. I mounted it inside the front pass-through so it's a short run to the batteries. If I go lithium I'll replace it with a lithium charger in the same spot.

Interesting

Upgrading the converter to 100 amps seems crazy for two batteries. I am not an expert but I would think that would require significantly lower gauge wires and not sure where you would get 100 A to pump through the converter. Most sites are 30 to 50 amps. I think I’ll just swap out my current converter for a lithium capable one at the same amperage. Might take a little longer to charge the batteries but way easier install.

 

[jmbopp]

Interesting

Upgrading the converter to 100 amps seems crazy for two batteries. I am not an expert but I would think that would require significantly lower gauge wires and not sure where you would get 100 A to pump through the converter. Most sites are 30 to 50 amps. I think I’ll just swap out my current converter for a lithium capable one at the same amperage. Might take a little longer to charge the batteries but way easier install.

Yes, you'd need heavier gauge wire.
But you're confusing 50A at 115VAC with 50A at 14VDC.

 

[deeuubee]

You didn't say if the one single battery when good, was enough for your outing.
Two 100 Ah lithium's would be 3 times the amount.
Getting the same sized 60 amp lithium profile converter would charge the 200Ah 20% SOC battery in about 3 hours.
If you upgraded to the max recommended at 100 amps, it charges in about 2 hours.
You would have to go up a wire size or two. The cost is small for the material, but I think hardly worth the aggravation to change wires.
I think the largest size Progressive has is 80 amps. Depending on how long your wire is, you could use the same set-up you have.