Litium batteries have a bit different charging pattern than lead acid batteries. They have specialized charge controlling chips. Probably simple swapping may not be recommended
To avoid very long explanations that is not easy to understand without knowledge in electrical field I give you a definition from Google search:
"The peak power of an amplifier is determined by the voltage rails and the maximum amount of current its electronic components can handle for an...
The power of amps on ICE cars is limited by voltage of battery 12-14V. The best class D amps can get under 20 W from it.
I hope, the CT may have some highet voltage for its audio.
If I would get the CT's final specs under my christmas tree I would think hard what to do with that gift.
But if I would get the CT, even without the detailed description and specs, O-o-o, I know what I would do!
Ok, without specs I can sleep well, not worring about mileage.
???
As a generator to generator I honestly will tell you that placing a laptop on your lap is more dangerous for your groin and long talking on a cellphone is more dangerous for your brain than any midsize motor magnetic fields on a distance of one meter. Magnetic flux cirquits in EM are closed...
Cell phones do not work even when removed from microwave ovens if the ovens not switched off.
But why not to enclose the critical CT electronics into small all metall enclosures, leaving the passengers to worry about their own protection from EMP?
From Wikipedia
" In China, backyard furnaces (土法炼钢) were small blast furnaces used by the people of China during the Great Leap Forward (1958–62).[1][2] These were constructed in the fields and backyards of communes to further the Great Leap Forward's aims of making China the top steel...