I think that's old warranty information, their battery has changed since then and is the same make and type as the Wisper 14 Ah. I can't remember the new warranty, but it's better than before and these are sound batteries anyway, right at the top of the technology.
I don't know of any other e-bike circuits available and even eZee's new site doen't seem to link to this any more. One problem is that being fairly new tech there are constant changes in wiring, and you'll see that some eZee models have two diagrams in that manual. Even that doesn't give full coverage since there's been other changes since it was published.
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