With that large of a top, I'm assuming the charging logic is located within the battery to prevent over-charging.
On the box, I noted something interesting: "Fits '07 - '17 VRSC (except '07 VRSCR)
What's different about the '07 VRSC*R*? Maybe you drive an '07 VRSCR and this is why you needed the shorter tie-downs?
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Not to be a weaner, but stating it's "Lithium LiFe" is redundant since Li is the chemical symbol for lithium.