I would like to let everyone know the AliExpress part number circulated in this thread:
This worked for me and arrived the fastest. I ordered it on Feb 20, it arrived on March 3. (11 days) to transit from China to Syracuse, NY with the standard shipping offer. Quite impressive. I placed a duplicate order in parallel from another seller on e-Bay for the same part, also shipping from China and it was a few dollars more, but it has not arrived yet. (22 days and counting). The promised delivery dates for both were mid-March to the end of April. But AliExpress seems to have their shipping process down and appears to be delivering product much quicker than promised.
The part that did arrive went in very easily just as shown by TomG on the thread, and it’s working great, I have 9 consecutive nights of good vacuum sessions (52-56 min, 500 square feet on high suction) under my belt and it’s been working great with a new battery.
One cautionary tale, after putting the battery in, it detected about a 48% residual charge and fully charged (so it thought) on the charger once I replaced it. However, it died overnight during its first run about 20 feet away from the charger stand, with no trace of the event in the app. I was concerned, as this was similar to what it was doing before I replaced the battery. But what I think had happened was the battery shipped to me was likely much lower than 48% and the vacuum just had a wrong detection of the battery capacity on initial installation, and needed a full battery discharge/recharge cycle to figure it out. After this happened once, and it fully charged from 0-100%, things have been working great… I just wanted to let people know that they might expect this behavior and to not freak out if it happens the first 1 or 2 times after replacing the battery.
It’s a shame that Wyze can’t buy a bunch of these and have them for sale, quick support for its customers at a reasonable price/delivery time. Such a simple fix… Instead their support claims there’s nothing you can do and you should buy a new unit. I’m not sure why they have to make this so difficult. This experience certainly has given me pause for considering any future products they make with high price points. If you can’t support and stock basic consumable parts, it undermines Wyze’s credibility for creating any product with a non-disposable price-point.