Replacing my Converter/Charger - Help

BFL13 wrote:
Ok you are in business with your new 75 amper. :)

---------
I am curious where you got it. Strange confusion in delivering a different one from what you ordered. Also I didn't know they make a PM4-LK. I thought they were PM3-LKs. Once PowerMax itself updates their website we should know what is happening with the new models. BoatandRV has some LKs, but is a little chaotic--selling some LKs on Amazon but not yet updating his own website where he is selling older model PMs at half price! Weird, but it will no doubt all get fixed eventually :(
-----------

Earlier you said you had 13.7 at the converter and 12.x at the battery, but in the OP you said the Iota 30 was shot. Before you cut any wires for the Iota, let's revisit that. If the Iota is putting out 13.7 when plugged in to 120 it is working. The 12.x at the battery can have other reasons.

If it is working then IMO you should leave it be as your back up converter, while placing the new converter up front by the batteries.
They don't bother each other.

If the Iota is to come out, leave the battery wires on the fuse panel and just take out the short wires from the converter to the fuse panel.

The left hand hole is for the switch that makes it either a fixed three/four stage automatic converter like usual in RVs OR a single voltage like your Iota without the IQ4---except--when the switch is to single you can now twiddle the voltage pot in the other hole and pick your own single voltage and it will stay at that until you change it.

You can swap back and forth. It is very nifty! :)

Your new 6s will want 14.8 for Bulk and Absorption , so set the single voltage to that and leave it alone after that. When your batteries are charged up, switch to auto and it will drop to 13.6 OR leave it at 14.8 but unplug the 75 and now your Iota will take over doing its 13.6.

BTW if you want you can make it easier to see what you are doing by removing the lid and drilling the holes out bigger and put the lid back on.

I bought the Powermax on Amazon, shipped and sold by Amazon. Paid a $150 with free one day shipping. I was about to call them and ask for a partial refund but when I looked at adjustable models they are more expensive than what I paid.

I figured the Iota was bad because I lost power over the weekend camping in Baja. The problem turned out to be the plug on my shore cable went bad and the Itoa was not getting power from the genset. I had to charge the battery off my truck for four days, pain in the butt.
When I got it home and found out it was the plug I replaced it but the Iota is making noises and the fan doesn't come on.
I'll see if I can clean the **** out of the fan and use it for a backup like you said.

I do mostly dry camping in the desert or the beach in Mexico and have been limping along with one 12v battery I replace alot

I'm going to start the battery swap, probably have more questions
Thanks for all the help!