FWIW Shimano (as well as KMC) quick-links are not reusable, I trust you are aware of that.
Degreasing the chain in the classical tool can't have had that impact on your chain.
I would mark the chain pin that I mounted myself, just to find it better when checking shortly afterwards.
Are you shure you've got the CN-HG701-11 chain?
I'm not Rando but I can tell you the battery range mostly depends on the rider's power input and on too many factors to give the definitive answer. Yet, for anybody concerned with the Vado range, the UI-600 Specialized battery (including a separately ordered cover) is available for less than...
electricbikereview.com
We are not made equal, Barry 😊 Or equally healthy. Would you guess why I bought my e-bikes? Yes, it is an extra item for US$25. @Ebiker53: Not sure if you could ride without the cover. Certainly it wouldn't look good. Besides, I am of the opinion batteries should be rotated as it gives both...
electricbikereview.com
Or is it still the e8000? Can't see you changing chains every other month or so.