Lithium Battery install ?

Originally posted by GlueGuy Originally posted by StephenH Since the unit that comes with the RPod is a 55A unit, I gave the number for the equivalent PD drop-in replacement. The 'Pod's AC circuitry is 30A, but the DC side is not the same. The 55A output is DC which is over 300A DC. The converter does not draw nearly that in AC amperage to output the 55A DC. Your EE friend should be able to explain this better than I can.  Other way around Stephen. 55 amps DC pulls about 5.5 amps on the AC side. (that is an approximation)

Thanks. I messed up my calculations when I wrote that. You said what I meant to say. I was thinking that if the 55A were the 120V AC, it would be over 300A DC. It is better to put it in terms of what the actual AC draw is to generate the 55A (maximum) DC output.

I always thought it was the reverse polarity fuse, yet now wondering..

Neither of those choices have anything to do with tow vehicle charging, they are ac source chargers only. If you want to do tow vehicle charging of a Li battery you will need another device. Here is one for example that provides a regulated dc output for Li battery charging and has dual inputs, one for solar and one for the TV 12V supply.

Yep, its expensive. The question is, do you really need to convert all three charging sources (TV, grid, and solar) or can you do with one or two? 

One point here is that Li battery charging is actually much less complex than PbA battery charging. There is no need for a complex multistage charging sequence. You just need to stay below the max charging voltage for your specific battery, which a dc to dc converter providing a regulated output voltage can do. But it is critical that you do that, there can be serious consequences (eg, fires) if you don't. 

There are any number of folks that have converted to Li house batteries in their RV's, just not so much in rPods. But that doesn't matter, the electrons don't care what kind of RV it is. A Google search will bring up lots of hits for this conversion.