I'm with "silversand" as I want absolutely nothing to do with Lithium batteries in an RV until they are truely safe and competitively priced with other forms of proven reliable electric current storage products in the marketplace. Money is not the real concern but spending large sums to put my wife and myself in real danger is plain idiotic in my eyes. 3 cheers for you guinea pigs and I'll just observe.
200, 300, 500 lbs of extra battery weight doesn't concern me a bit as it's a tiny fraction of the total unit/rig's weight and there's so many enhancements to a properly designed and engineered truck to safely handle the additional tiny fraction of added weight that are so well known and proven.
