battery pack ?what is in it

NOTA

100 mW
Joined
Jul 16, 2024
Messages
40
Location
MIAMI
well some are better then others but

I like not to combust even if doing something stupid

who sells better cells in packs
or is creation the best way

I need high draw 60v for a scooter no petals
 
how to tell what chemistry is in a pack of cells

they say Li but not the WHOLE CHEMISTRY
WE KNOW THE KIND WITH Fe+P WILL BURN FAR LESS
BUT I DO NOT READ CHINESE

PACK CAME IN A CITY COCO FAT TYRE SCOOTER
PACK IS BLUE THIN LONG 60V 12A 30A bms BY CHILWEE BN6012
SAID IT IS Li-ion ? not P+Fe ?

and is dead

what is it ?























+
 
Post a photo of the battery pack including labels.
or do as E-HP says and ask the seller.
later floyd
 
According to the manufacturer:
Chilwee BN Series Lithium Ion Battery Pack is designed based on MnNiCo Ternary technology with excellent cycle performance and high safety. BN Series is mainly applied to electric bicycles, tricycles and other electric vehicles. The battery pack is comprised of soft-packed battery cells in series and battery protection module is included to ensure supreme reliability.
So these are the kind that can catch fire more easily. 60V, 12Ahr.
 
thank you

order a new pack from china
as cheap prime day deal 60v18a likely the same style
was 84 now over a 100 https://www.amazon.com/CSTAL-Electr...b_tag=se&keywords=CSTAL&qid=1721861711&sr=8-8
The advertised data doesn't match with what is currently possible in real life, in 2024.
As mentioned above by E-HP, if these were true that would mean that each of the cells that are installed in the battery would have to be able to store a capacity of 9Ah (18Ah divided by 2P).

Given the dimensions of the pack, the cells that are used are the standard "18650" that you can find pretty much anywhere.
The best ones available in real life are barely able to pack 3.5Ah.

Since the pack is 16S2P, that means the total pack capacity should be at best 3.5Ah x 2P = 7Ah. And that is very optimistic because I don't think for a second they are using the best available cells.

In reality it's probably barely a 5Ah battery pack.
 
It doesn't get discussed much but there are accurate inexpensive battery load testers that let you know for sure how much capacity a pack has.

OIP.4X4qt6I-qaXMr_vKWCngkwHaHa
 
so cancel now
refuse the battery as a fraud
test amps then return

what is the best way out
 
cells or pouch btw ?

how to know that ?
agree if the "18650" but is that even the only cell now used ?

I know less but thought the pack was IDed as pouch style ?
so is amp per pouch also limited ?
 
cells or pouch btw ?

how to know that ?
agree if the "18650" but is that even the only cell now used ?
I determined it was 18650 cells just by looking at the advertized dimensions of the battery

Each cell is 18mm in diameter and 65mm in height.
The battery dimensions are 290mm long, 38mm wide and 66mm high.

290/18 = 16.1 , so this matches with 16S configuration
38/18 = 2.1, this matches with 2P configuration
66mm height is close to 65mm + a layer of insulation and bus bars.

There are good pouch cells and there are bad pouch cells, the same way there are good and bad 18650s. There's no real rule as to which one's the best, it depends on the manufacturer and model, the quality differences can be huge. Pouch cellsa re usually nice if you want a smaller battery since its easier to get a better pack density, but they don't allow much design flexibility, usually you are limited to brick shaped packs. Cylindrical cells allow for more creativity since you can organize the cells in many different configurations to fit themm in whatever frame you got.

The only way to be certain to get good cells is to bite the bullet and go for good brands. But I agree it can be tempting to try the cheap stuff.
 
will amazon accept a return based on diggs's device reads = fraud = refund to me
 
When you receive the battery open Amazon app /in a browser under orders click on return or replace item and follow Amazon's instructions.Screenshot 2024-07-26 at 11.32.58 AM.png
if asked why you are returning the item, Explain that the battery is can't be 18Ah. No need to even open the package. This may look different in mobile apps.
Later floyd
 
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well it showed up sort of
one battery pack not 2 that I paid for

about 1/3 the size of the dead 12a 60v pack I had
claiming 18 amp at 60v
charged to68 from 64.x
in two hours on a 2 amp/hour charger
gee about 4 amps if 100% in so less in the real world
 
Caveat emptor.

Here's one if you can fit it, it isn't ready to plug and play but it's a steal:


Here's another:


These batteries will likely require different charging regimes than whatever your godforsaken thing was originally equipped with. And they'll require some kind of battery management.

They're big, so a sit down scooter would probably fit one or the other, but a stand up head injury machine probably won't.
 
well it showed up sort of
one battery pack not 2 that I paid for

about 1/3 the size of the dead 12a 60v pack I had
claiming 18 amp at 60v
charged to68 from 64.x
in two hours on a 2 amp/hour charger
gee about 4 amps if 100% in so less in the real world
That would be amp hours, not amps.
Now I see you are in Miami. Give @Stephan Linn (El bike doctor y mas) a call. I'm sure he can help you sort things out, if you want.
 
big A said they will refund without return today in 3 to5 days

a 16x2 even if new best cells is about 4 amp per cell =/=under 8 out in x 2
and dropped to 64v in 2 days sitting

so what is the diff amp or amp hour still not 18 as advertised at 60v
 
Caveat emptor.

Here's one if you can fit it, it isn't ready to plug and play but it's a steal:


Here's another:


These batteries will likely require different charging regimes than whatever your godforsaken thing was originally equipped with. And they'll require some kind of battery management.

They're big, so a sit down scooter would probably fit one or the other, but a stand up head injury machine probably won't.
good prices
BUT BAD CHEMISTRY

THOSE ARE (lithium nickel manganese) chemistry offers a superior FIRE DANGER

AIN'T THOSE THE KIND THAT BURN DOWN HOMES ????? aka tesla fire cells

and that site don't say they are (lithium nickel manganese) chemistry offers a superior fire danger
one must google the cell # to find out
nota dislikes and will never buy from a site that sells (lithium nickel manganese) chemistry offers a superior fire
esp if they are not posting the (lithium nickel manganese) chemistry ON the SITE

nota thinks people who sell fire cell should say so
 
good prices
BUT BAD CHEMISTRY

THOSE ARE (lithium nickel manganese) chemistry offers a superior FIRE DANGER

AIN'T THOSE THE KIND THAT BURN DOWN HOMES ????? aka tesla fire cells

and that site don't say they are (lithium nickel manganese) chemistry offers a superior fire danger
one must google the cell # to find out
nota dislikes and will never buy from a site that sells (lithium nickel manganese) chemistry offers a superior fire
esp if they are not posting the (lithium nickel manganese) chemistry ON the SITE

nota thinks people who sell fire cell should say so
Not sure what you're getting at.

Those are automotive quality modules, safer when used and managed correctly than hobby cells or cheap nameless Chinese e-bike packs, let alone homemade anything. If liability-averse major corporate manufacturers are willing to use these rather than whatever you think is safer, I think it calls your opinion into question more than it does theirs.

If you want cells that can't start a fire, you have to use cells that are made from non-volatile materials and that contain no energy. I recommend nickel-iron Edison cells with the alkali electrolyte drained out. They'll be heavy and they'll have very limited range, though.

Also I recommend proofreading your written material and/or taking some classes in English.
 
LOCAL BIKE SHOP JUST BURNED

so no thanks for anything other then LiFeP

I am a WASP pre 1650 ancestors here
and english majors are useless

tell people if it burns or not
simple even an english major should get it
not you the selling corp
 
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