I bought from this brand 2 years ago, my battery would drop dead before the voltage gets low. It was $140 for 500wh. A high quality lithium battery can costs double of that. Thank you for the video. I am a Chinese too, it is sad that there are too many scams in China, and it's getting worse, please be aware of that.
Not after I ripped it apart! Though this video has cost them way more in lost sales than a refund would have. My experience with AliExpress is that it's sometimes possible to get a refund before the dispute window has closed, but utterly impossible after it has closed. Delivery times usually consume most of the window!
Oh jeez... How much did they charge? I reckon either half of them will be full of sand, or will be low density 700mAh cells. Nevertheless, you can rip out the charge/discharge protection circuit and use it on legitimate capacity cells. I've found that the most reliable source for cells is online vape (e-ciagarette) shops!
Probably! You can get a rough idea by looking at the weight. The world's top performing Lithium ion batteries are capable of an energy density of 265 watt-hours/kg. At 48V, that equates to 265/48= 5.52 amp-hours/kg, or 5520mAh/kg. So unless your 100Ah battery weighs at least 100/5.52 = 18kg, then it's a lie.
Good brand 18650 Li-Ion batteries only go up to 3600mAh i have 100s of them, but i only buy Samsung, Sony, Sanyo, Panasonic, LG, These good brands are usually made in Japan & maybe assembled in china. But China can't seem to make a really good Li-Ion battery for some reason, I've tested some of china's ok-ish 18650 batteries that came with something i bought, but the capacity only seems to go up to about 2000mAh & still i think they're crap! & i throw them in the bin.
I bought from this brand 2 years ago, my battery would drop dead before the voltage gets low. It was $140 for 500wh. A high quality lithium battery can costs double of that. Thank you for the video. I am a Chinese too, it is sad that there are too many scams in China, and it's getting worse, please be aware of that.
Don't take it personal. Happens all over the world.
That's next level, I thought they just used EOL cells on these ultra cheap ones...
This Okoman put also "Panasonic" on it, which is a lie too. How can they sell and get away with it for years?
Should post the seller store in your video so others can see and don't buy from them
Done, thanks!
I think the name is "O,Conman " ;P
And by the way, thats magic fairy sand..
Sand??? omg....
So Sad!!!
thanks for the video!
Were you able to get a refund from AliExpress?
Not after I ripped it apart! Though this video has cost them way more in lost sales than a refund would have.
My experience with AliExpress is that it's sometimes possible to get a refund before the dispute window has closed, but utterly impossible after it has closed. Delivery times usually consume most of the window!
Multiple scam in one sale..... incredible greed
I just ordered the differnt brand that loos the same off ali, I got 2x 48V 30Ah and if they test less than 5Ah ill be getting a refund!
Oh jeez... How much did they charge? I reckon either half of them will be full of sand, or will be low density 700mAh cells.
Nevertheless, you can rip out the charge/discharge protection circuit and use it on legitimate capacity cells. I've found that the most reliable source for cells is online vape (e-ciagarette) shops!
That is FING Shady and disgusting.
i got suckered by the cheap price of okoman. i bought 3 of the fuckers (mind my french)
Look on the bright side, you can start creating your very own beach!
(sorry they ripped you off too!)
Mike use the proper tool for the job..
I'd run out of spoons :-p
i bought a 999999ah 100ah 48v battery for 120 pounds which is on its way take it some are full of sand.
Probably! You can get a rough idea by looking at the weight.
The world's top performing Lithium ion batteries are capable of an energy density of 265 watt-hours/kg.
At 48V, that equates to 265/48= 5.52 amp-hours/kg, or 5520mAh/kg.
So unless your 100Ah battery weighs at least 100/5.52 = 18kg, then it's a lie.
Good brand 18650 Li-Ion batteries only go up to 3600mAh i have 100s of them, but i only buy Samsung, Sony, Sanyo, Panasonic, LG, These good brands are usually made in Japan & maybe assembled in china. But China can't seem to make a really good Li-Ion battery for some reason, I've tested some of china's ok-ish 18650 batteries that came with something i bought, but the capacity only seems to go up to about 2000mAh & still i think they're crap! & i throw them in the bin.