The E19's Base & Options page states that one can order up to two lithium batteries, but I heard on a couple of your recent videos, and saw on the Trailer Estimate page, that one can now order four lithium batteries. If four can be ordered for the E19, will they still be located at the exterior front, in the optional storage box, if ordered? Do you have a picture of what that looks like? Also, I saw that your lithium batteries are from Battle Born. Are they the heated type? Thanks.