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diy solar

Review of my purchase from Shenzen Luyuan Technology Co. LTD. Alibaba, Wan Amy,

The, "transaction seems a little suspect", has me concerned. Has anyone heard from Amy Wan recently?
yeah i heard from her a couple of days ago, i wouldn't worry about Amy Wan, has a history of providing Grade A new cells

Bluedog225 post, sounds like he was dealing with Amy Zhang from different company.
 
The, "transaction seems a little suspect", has me concerned. Has anyone heard from Amy Wan recently?

I chatted with her two weeks ago. I've not seen anything from Amy Wan that is suspect. The other Amy that he is speaking of is shipping from Houston.

All genuine Eve cells come from the factory with test reports (not usually printed out but downloaded). Eve keeps them available for 90 days on their servers, after that just the tested capacity is kept for each serial number. The full test has multiple measurements of the IR during several instances of charge/discharge, so after 90 days only about 20% of that data is kept.
If they don't have the test results, there is a reason. They are available and free.
 
I want to reiterate that I am totally happy with my purchase from Amy Wan, @Shenzhen Luyuan. She did send detailed test reports. I have not done capacity tests yet, but the cells are performing as expected, compared against my ammeter from Victron(bmv-700). While the cells MAY(?) be sub-standard for EVE, they are reported to deliver over 280 ah. My current use is one 4 cell pack@12v running off-grid solar. Due to the fact I do not have a temp controlled environment, and it's winter here, I have not bothered to perform a capacity test. As I've said, in real world use, the pack seems to be performing properly. The cells are remaining well balanced. The BMS rarely performs balancing operations, and the pack has delivered in excess of 200 ah in normal use. It has never reached cutoff voltage.
 
I did not know this. It explains why the houston warehouse first said they had no idea what a testing certificate was. And after I explained, they said they could not provide one. Different Amy.

I wonder what the practical impact is of “not making the cut?”

The transaction seems a little suspect now.

Thanks Steve!
Blue dog, it is unclear, and causing some confusion on this topic. When you said, "The transaction seems a little suspect now", were you referring to the Houston-based cell broker? I have chatted with the Houston-based broker, but have not purchased from her, but your comment is confusing people. Please clarify your comment. Thanks.
 
I want to reiterate that I am totally happy with my purchase from Amy Wan, @Shenzhen Luyuan. She did send detailed test reports. I have not done capacity tests yet, but the cells are performing as expected, compared against my ammeter from Victron(bmv-700). While the cells MAY(?) be sub-standard for EVE, they are reported to deliver over 280 ah. My current use is one 4 cell pack@12v running off-grid solar. Due to the fact I do not have a temp controlled environment, and it's winter here, I have not bothered to perform a capacity test. As I've said, in real world use, the pack seems to be performing properly. The cells are remaining well balanced. The BMS rarely performs balancing operations, and the pack has delivered in excess of 200 ah in normal use. It has never reached cutoff voltage.
If you received detailed test reports, they are normal cells from Eve.
The serial number in the test reports can be verified by matching the bar code on the cells with the reports.

If a vendor doesn't have the reports for cells they are selling, they likely purchased from a third party rather than from Eve.
It could be the third party got a deal and didn't think the test reports are important. It could also be that the third party received a substantial discount by purchasing cells that didn't meet specs, and thus don't have a test report. Maybe the original purchaser bought more than they needed, or the project was canceled, who knows?

You will find that all legitimate cells with test reports behave exactly as expected. Capacity is at least what is stated, voltages through the range remain in sync (no active balancer necessary), and no surprises. That's because that is what they are testing with those reports.
 
Blue dog, it is unclear, and causing some confusion on this topic. When you said, "The transaction seems a little suspect now", were you referring to the Houston-based cell broker? I have chatted with the Houston-based broker, but have not purchased from her, but your comment is confusing people. Please clarify your comment. Thanks.
No much to explain. I thought a reputable battery vendor would know what a testing certificate is. That’s it. Maybe that’s not a reasonable assumption.

The houston folks seem to have lots of happy customers.
 
The, "transaction seems a little suspect", has me concerned. Has anyone heard from Amy Wan recently?
Ok. That's cool. It's just that, since this thread is a review of Amy Wan@Shenzhen Luyuan, I'd appreciate if we avoid discussing other venders here. Thanks:) #Ghostwriter wrote a review of the Houston-based warehouse vendor, if you are curious about that vendor. If you purchase from them, I look forward to hearing about your experience. Charge on:)
 
Just received my 4 cells from @Amy Wan (Luyuan). As earlier pictures from others have shown: packaging was perfect. All cells are pristine. Communication was clear and delivery (which is out of her hands anyway) took 71 days to the EU.
Now the fun starts :p testing and building the battery.

And yes @Bluedog225 there are many "Amy's" around which _is_ confusing. I would prefer if they would all use their real name _or_ picked from a bigger list of names. It will also help when people on the forum don't assume 'Amy' is one and the same person and add their fullname and company to make it more clear...

As to your question: Amy Wan (Luyuan) does react (I had one only last week). I don't know about other Amy's obviously :cool:
 
LOL @IkkeDus maybe you are not aware but many Chinese Names do not translate well or have no equivalent in English or other languages and so a "close approximation" is a generic usage. Some of teh translations are ... well... quite interestingly comical and some can be really rude ! Translating English or other names to Mandarin can also be exceedingly entertaining....
 
LOL @IkkeDus maybe you are not aware but many Chinese Names do not translate well or have no equivalent in English or other languages and so a "close approximation" is a generic usage. Some of teh translations are ... well... quite interestingly comical and some can be really rude ! Translating English or other names to Mandarin can also be exceedingly entertaining....
Approximate translation not how Chinese people usually get English names. More commonly they just choose an English first name that they like. This is why I am suspicious of all the girls called Amy (apart from Amy Wan) because there's a chance they're trying to capitalise on her good reputation.

I work with Chinese people daily, and have had conversations with them about this. Example: "How did you get the name 'Monica'? Answer 'I really like Friends TV show'."
 
Approximate translation not how Chinese people usually get English names. More commonly they just choose an English first name that they like. This is why I am suspicious of all the girls called Amy (apart from Amy Wan) because there's a chance they're trying to capitalise on her good reputation.

I work with Chinese people daily, and have had conversations with them about this. Example: "How did you get the name 'Monica'? Answer 'I really like Friends TV show'."
The letter "A" may be a popular choice because it comes at the beginning of our alphabet, as well. I chose a business name that starts with an "A" for that reason.
 
FWIW, I have not done a proper capacity test, thus far, because my uninsulated yurt does not have constant, controllable temperature, and it is chilly Texas winter, nor do I have a testing instrument, at this time. That having been said, I recently had a period of bad solar weather(Clouds for days) and I drew 261 ah out of a single 280ah pack, with room to spare. It did not shut down. It did not hit 'the knee' in terms of voltage drop, as far as I could see. Still quite happy with the cells.
 
I also received my cells today from Amy.
Ordered on 11/22/21. About a week later Amy sent me a video of the cells and their voltages prior to packaging and a photo of the FedEx shipping details.
I've been checking the FedEx tracking website for about 2 weeks and was most surprised that the FedEx driver was knocking on my door this morning. According to FedEx the cells are still somewhere between China and LA??
The packaging was superb and it even managed to defeat FedEx's best attempts at destruction.
All the cells tested around 2.9 volts, with a few millivolts variation either way.
Best of all, not one has any bulging; not one. The terminals are clearly marked - and +, with the added touch of a spot of red paint on the positive terminal.
If I ever need cells again, I'll order from Amy without hesitation. :love:
 
Well my 304Ah Cells arrived from Amy today, ordered them in the second week of Nov, and finally arrived today.

Other Cell suppliers should take note of how Amy has these packed, one of the best packed items i've received.

Cells look great, they are straight, no bulges, all resting voltages are the same, everything looks legit.

Got them balancing, and i look forwards to building my packs.

The only real issue i had was with the freight forwarder that was used for the Australian delivery, just uncontactable on their phone number, email and live chat. they arrived and cleared customs on the 22nd Dec, and have been waiting for them to request a pick up from Toll the delivery company.
 
I also received my cells today from Amy.
Ordered on 11/22/21. About a week later Amy sent me a video of the cells and their voltages prior to packaging and a photo of the FedEx shipping details.
I've been checking the FedEx tracking website for about 2 weeks and was most surprised that the FedEx driver was knocking on my door this morning. According to FedEx the cells are still somewhere between China and LA??
The packaging was superb and it even managed to defeat FedEx's best attempts at destruction.
All the cells tested around 2.9 volts, with a few millivolts variation either way.
Best of all, not one has any bulging; not one. The terminals are clearly marked - and +, with the added touch of a spot of red paint on the positive terminal.
If I ever need cells again, I'll order from Amy without hesitation. :love:
 
@NMNeil
So crazy. I ordered my cells on 11/2 and just got an update from FedEx that they are in transit as of today. Was a little sketchy there for a minute, and I haven't seen my batts yet. so not clear yet. About a month ago Amy stated the shipping had been given to FedEx and they were on the way as well as other people from the same shipment received theirs. I called FedEx and they said no we don't have them. When I went back to Amy she said, O they now are at customs and then waiting for FedEx. I responded that is exactly the opposite of what I was told prior. I filed a refund with Alibi. and said not asking for a refund but I want to log I have not received it yet and will be asking for a refund shortly. A week and a half after that i got the FedEx notice.

Even through all that I just ran upstairs and yelled ITS HAPPENING ITS HAPPENING! My wife just rolled her eyes. If I had to do it again I would have paid the extra and ordered the States side. Way too much crap going on in the world.
 
@NMNeil
So crazy. I ordered my cells on 11/2 and just got an update from FedEx that they are in transit as of today. Was a little sketchy there for a minute, and I haven't seen my batts yet. so not clear yet. About a month ago Amy stated the shipping had been given to FedEx and they were on the way as well as other people from the same shipment received theirs. I called FedEx and they said no we don't have them. When I went back to Amy she said, O they now are at customs and then waiting for FedEx. I responded that is exactly the opposite of what I was told prior. I filed a refund with Alibi. and said not asking for a refund but I want to log I have not received it yet and will be asking for a refund shortly. A week and a half after that i got the FedEx notice.

Even through all that I just ran upstairs and yelled ITS HAPPENING ITS HAPPENING! My wife just rolled her eyes. If I had to do it again I would have paid the extra and ordered the States side. Way too much crap going on in the world.
Well, that was a gut punch! Fed Ex just updated how my tracker looked. Still the same status. Fed ex says they dont have any record of it and Amy says the shipper told her they told FedEx to pick it up. I requested from Amy I need new information by Friday or I am filing a complaint with Alibaba and requesting a refund. My Cc has 1 year protection on purchases so not too concerned. I finally found out the shipper and emailed them as a hail mary. Amy's been nice but I wouldn't say she has been as good as other people's experience.
 
Well, that was a gut punch! Fed Ex just updated how my tracker looked. Still the same status. Fed ex says they dont have any record of it and Amy says the shipper told her they told FedEx to pick it up. I requested from Amy I need new information by Friday or I am filing a complaint with Alibaba and requesting a refund. My Cc has 1 year protection on purchases so not too concerned. I finally found out the shipper and emailed them as a hail mary. Amy's been nice but I wouldn't say she has been as good as other people's experience.
And the plot thickens. FedEx finally let me know that they cancel shipping requests after 3mo if no request to pick up is made. IF my package is in the states they said the shipper has to recreate an "airway bill" for them to pick up. the old tracking number goes nowhere. I know way too much about shipping at this moment.
 
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