Beware of Docan Technologies (Issue Resolved)

drbytes

Solar Enthusiast
Joined
Oct 21, 2021
Messages
105
Huh.

I wasn't going to make a post about it but I've recently received my batch of 280Ah cells, 16pcs, from Docan. When I place these cells next to those I received from Amy it's clear that the Docan cells are not A grade. Worse yet, one of the cells is not performing correctly. It's capacity is way lower than the others in the batch. It would peak to 3.65 when the others are still at 3.45v.
Same for the undervoltage, it hits 2.5v before the others do. effectively cutting the pack capacity to the weakest cell.
I tried getting it exchanged but Docan won't help, I can pay for a new cell, I can send it back at my own expense and when they receive it they'll send a new one. If it gets there and if I can pay the 100-200 euro shipping because we cannot scam the system and send these cells out by weight only.

Kinda blows, during the purchasing they were all nice and helpful and "A grade for all the people!" but in the end I received some B/A-- grade cells and one is out of whack.

I don't want to make a whole thing out of it, but I do feel ripped off.
 
Last edited:

Willieboy240

New Member
Joined
May 28, 2022
Messages
33
Unfortunately with all stuff from china. Not just batteries. You get what you get. Although their products are a million times better that what they use to be. If it wasn’t we wouldn’t even be having this conversation.
Don’t like it ? Buy American or European and pay 10 times more. Sad to say. We are at their mercy if we want good and cheap.
 

toms

Photon Sorcerer
Joined
Jul 24, 2020
Messages
1,113
Grade A-B-C don’t know don’t really care, I have purchased 28 LF280N cells from Jenny Wu at Docan. Both purchases went great, I had cells to my door in five and seven working days from ordering, cells arrived at the same voltage about 30% charged and in perfect condition with QR code’s intact.

Top balanced the cells and they have been working great for a year and a half, no balancing issues they stay within .015 top to bottom. I am ordering another 16 cells soon.

Keep in mind that at 1.5 years you are only 10% into the life of the cells. Most dendrite driven failures i’ve seen start occurring after 5 years of daily use.
 

toms

Photon Sorcerer
Joined
Jul 24, 2020
Messages
1,113
Time will tell.

I’m eagerly awaiting the next few years as i’ll be in line to buy plenty of these if they look like they will last half as long as what i’m using. I appreciate the early adopters doing the testing!
 
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WKP

New Member
Joined
May 12, 2022
Messages
14
Of course, because they are creating foregn currency so the CCP does not care what their ethics are as far as the West is concerned. Surprisingly it is Capitalism at its worst. Those are the risk management elements that every buyer needs to be aware of when they get a good deal from China.
Yeah, but so many loyal "Americans" keep buying from Docan, which is not in any way American. Straight Communist China that is in the USA selling. Tell me, Can someone from the United States do that in China?
 

Willieboy240

New Member
Joined
May 28, 2022
Messages
33
Yeah, but so many loyal "Americans" keep buying from Docan, which is not in any way American. Straight Communist China that is in the USA selling. Tell me, Can someone from the United States do that in China?
You can say that about a lot of countries. Japan, Germany, the list goes on and on. If you can find a better product for the price. Let us know.
 

WKP

New Member
Joined
May 12, 2022
Messages
14
Huh.

I wasn't going to make a post about it but I've recently received my batch of 280Ah cells, 16pcs, from Docan. When I place these cells next to those I received from Amy it's clear that the Docan cells are not A grade. Worse yet, one of the cells is not performing correctly. It's capacity is way lower than the others in the batch. It would peak to 3.65 when the others are still at 3.45v.
Same for the undervoltage, it hits 2.5v before the others do. effectively cutting the pack capacity to the weakest cell.
I tried getting it exchanged but Docan won't help, I can pay for a new cell, I can send it back at my own expense and when they receive it they'll send a new one. If it gets there and if I can pay the 100-200 euro shipping because we cannot scam the system and send these cells out by weight only.

Kinda blows, during the purchasing they were all nice and helpful and "A grade for all the people!" but in the end I received some B/A-- grade cells and one is out of whack.

I don't want to make a whole thing out of it, but I do feel ripped off.
It has happened to me. What is the next step? Sue them? Go to China with a team a lawyers? Try and get your money back? It's easier to dissemble the great wall piece by piece by hand and sell it as Grade A Real Estate. They absolutely don't care what they publish or say. Kinda funny that the Great Wall of China (or any part of China) has no graffiti? Because you are executed if you do. It's STILL COMMUNIST! They are playing a state mandated game to sell to the west. Do your research.
 

Alkaline

Solar Addict
Joined
Jul 26, 2020
Messages
356
WKP whats going on you seem to be very upset. If you have an issue reply back with details and upload pictures of your issue.
 

WKP

New Member
Joined
May 12, 2022
Messages
14
You can say that about a lot of countries. Japan, Germany, the list goes on and on. If you can find a better product for the price. Let us know.
I have found and many others on this site have also found a better product and honesty and service. You get what you pay for. Just read the complaints here. I'm done!
 

WKP

New Member
Joined
May 12, 2022
Messages
14
I see what happens when people reply to stuff for proof. They get trashed by this forum. It appears that most want to disagree naturally with a posting than take the higher road. It happened to me on my first posting. Unfounded attack. Stick and Stones!!
 

WKP

New Member
Joined
May 12, 2022
Messages
14
You can say that about a lot of countries. Japan, Germany, the list goes on and on. If you can find a better product for the price. Let us know.
Japan, Germany and your list are not the biggest viloators of economic, race or human rights that you champion. Chairman Mao Exicuted 40 Million People. And you seem to empower and champion China and dumping on the USA. The USA is not perfect, but 40 million? Just to get 50 bucks off a battery? Go for it!
 

burgerking

Solar Enthusiast
Joined
Apr 6, 2022
Messages
206
Location
Subic, Philippines
I am waiting for Hightechlab's lab test results; he bought 200x of these Grade Bs. he should have definitive answer from his tests to put light into this grade B shenanigans.
 
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