Good review on supplier.

Sback

Solar Enthusiast
Joined
Jul 5, 2021
Messages
81
I prefer JBD. The 100 and 120a are the most popular, but I currently use two of the 150a models that are the size of a loaf of bread.

A few US based sellers carry JBD and Daly, but most of them don't have a decent selection. It would be cool if you had a 12, 24, 36, and 48v option.
The new design is smaller. It's also easier to hook up with the threaded ports. The 100 and 150 look the same. I have only got the 100 4s and 150 4s.. both are the same size. This is the 150 attached to battery
 

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deanbob

New Member
Joined
Aug 30, 2021
Messages
6
I'm assuming your talking about the one that you can adjust the voltage on that is used for top balancing. If so yes you can. I would have a bms installed if charging at 14.6v
Absolutely do consider a BMS essential and would only do a 4 cell initial parallel charge if I needed to wait for a BMS. Thank you for your time and information.
 

deanbob

New Member
Joined
Aug 30, 2021
Messages
6
Just opened and checked all 8 boxes of 2 and look awesome. 2 hour drive home now. To avoid credit card fee and or dirtbag paypoop and your picking up in Houston tell Amy pickup with cash. Save 68 dollar paypoop fee, joe.
How much time was required from your order to pick up?
 

eugenesan

New Member
Joined
Jan 30, 2021
Messages
5
Location
Arizona, US

@Amy Zheng

Regarding BMSes,
I think most people are buying cells in multiples of 4, therefor I suggest you import 1 or 2 models for each bank variant (4S, 8S, 16S).

In my opinion, you should concentrate on models capable of 0.5C of you average battery size.
Assuming you sell mostly 280AH-304AH you should import BMS in the 140A-152A range.
I think new smaller and enclosed model of JBD Smart BMS 150A with Bluetooth (https://www.aliexpress.com/item/1005002338673024.html?) will be optimal.
Also newer 200A with built-in balancer (https://www.aliexpress.com/item/1005002958135242.html) and handy cable leads looks good.

Regarding cells purchase,
I am looking at http://www.powerwholesale.net/usa-d...4v-48v-320ah-storage-battery-bank-p-3882.html. The description is confusing, are EVE 304 or CATL 304?

Also the website (http://www.powerwholesale.net) won't allow placing orders and HTTPS (encryption) is not enabled.
How exactly the transaction is done after the details are discussed over email? Where the payment goes? Do you provide PayPal invoice or similar?

Thanks.
 

Mudd

Solar Enthusiast
Joined
Oct 21, 2020
Messages
110

@Amy Zheng

Regarding BMSes,
I think most people are buying cells in multiples of 4, therefor I suggest you import 1 or 2 models for each bank variant (4S, 8S, 16S).

In my opinion, you should concentrate on models capable of 0.5C of you average battery size.
Assuming you sell mostly 280AH-304AH you should import BMS in the 140A-152A range.
I think new smaller and enclosed model of JBD Smart BMS 150A with Bluetooth (https://www.aliexpress.com/item/1005002338673024.html?) will be optimal.
Also newer 200A with built-in balancer (https://www.aliexpress.com/item/1005002958135242.html) and handy cable leads looks good.

Regarding cells purchase,
I am looking at http://www.powerwholesale.net/usa-d...4v-48v-320ah-storage-battery-bank-p-3882.html. The description is confusing, are EVE 304 or CATL 304?

Also the website (http://www.powerwholesale.net) won't allow placing orders and HTTPS (encryption) is not enabled.
How exactly the transaction is done after the details are discussed over email? Where the payment goes? Do you provide PayPal invoice or similar?

Thanks.
The Chinese fall holiday I think started today. So we probably won't hear from Amy for a week or so. I'm pretty sure she'll email you an invoice once she's back to work.
 

Amy Zheng

Docan Power
Joined
Sep 1, 2021
Messages
89
Location
China and USA
The Chinese fall holiday I think started today. So we probably won't hear from Amy for a week or so. I'm pretty sure she'll email you an invoice once she's back to work.
Thank you, Its okay I can work any time at home. Just response maybe delayed few hours during the holidays, any questions welcome to contact me
 
Last edited:

eugenesan

New Member
Joined
Jan 30, 2021
Messages
5
Location
Arizona, US
Thank you, Its okay I can work any time at home. Just response maybe delayed few hours during the holidays, any questions welcome to contact me

Oh, no worries.
I am yet to contact you but I am planning to in the future
Just doing my research.

I hope you have a wonderful holiday!
 

Amy Zheng

Docan Power
Joined
Sep 1, 2021
Messages
89
Location
China and USA

@Amy Zheng

Regarding BMSes,
I think most people are buying cells in multiples of 4, therefor I suggest you import 1 or 2 models for each bank variant (4S, 8S, 16S).

In my opinion, you should concentrate on models capable of 0.5C of you average battery size.
Assuming you sell mostly 280AH-304AH you should import BMS in the 140A-152A range.
I think new smaller and enclosed model of JBD Smart BMS 150A with Bluetooth (https://www.aliexpress.com/item/1005002338673024.html?) will be optimal.
Also newer 200A with built-in balancer (https://www.aliexpress.com/item/1005002958135242.html) and handy cable leads looks good.

Regarding cells purchase,
I am looking at http://www.powerwholesale.net/usa-d...4v-48v-320ah-storage-battery-bank-p-3882.html. The description is confusing, are EVE 304 or CATL 304?

Also the website (http://www.powerwholesale.net) won't allow placing orders and HTTPS (encryption) is not enabled.
How exactly the transaction is done after the details are discussed over email? Where the payment goes? Do you provide PayPal invoice or similar?

Thanks.
Thanks for your kindly comments and recommend for the BMS, Yes, I also agree with the BMS in the 140A-152A range. After our holidays, we will make a decision;

The website is old one so some functions is not good, but we will have new one www.docanpower.com soon

For the EVE 304Ah battery cells, please send you inquiry to my email lifepo4battery@163.com, I will send you proforma invoice (paypal payment)

Thank you again
Amy Zheng
 

curiouscarbon

Science Penguin
Joined
Jun 29, 2020
Messages
1,780
JBD-SP04S020-L4S-120A-B-U-K

This is the 12V BMS that I have been using for my 4S LiFePO4 battery builds. The 8S version is what I will use for my upcoming 24V build.

The reason I am using it is that it has:
Safety Disconnect: PackOverAmp, PackOverVolt, PackUnderVolt, CellOverVolt, CellUnderVolt, PackOverTemp, PackUnderTemp

And I learned about it through this forum :)

It has worked really good for me and the UART serial data port is a very big value point to me.

I recently disassemble one of these JBD 120A BMS and take photo of inside for investigate learn science :)

Here are links to the photos:

hope this might be of some assistance, thank you for your time
 
Last edited:

Amy Zheng

Docan Power
Joined
Sep 1, 2021
Messages
89
Location
China and USA
JBD-SP04S020-L4S-120A-B-U-K

This is the 12V BMS that I have been using for my 4S LiFePO4 battery builds. The 8S version is what I will use for my upcoming 24V build.

The reason I am using it is that it has:
Safety Disconnect: PackOverAmp, PackOverVolt, PackUnderVolt, CellOverVolt, CellUnderVolt, PackOverTemp, PackUnderTemp

And I learned about it through this forum :)

It has worked really good for me and the UART serial data port is a very big value point to me.

I recently disassemble one of these JBD 120A BMS and take photo of inside for investigate learn science :)

Here are links to the photos:

hope this might be of some assistance, thank you for your time
Yes,very helpful
Thank you again
 

FloridaSolarMan

Solar Enthusiast
Joined
Sep 11, 2021
Messages
8
Ok here's an update on my purchase of (8) 280ah cells from Amy Zheng.

Amy was very responsive to email and answered all of my questions satisfactorily.

I made payment via Paypal last Friday (9/24) for $1235 total. Cells were shipped on Tuesday from Houston, TX and I received them in Tampa, FL on Thursday (9/30). Cells were packaged well and all appear to be in excellent condition. All cells tested at 3.29-3.3v.

I will now start the process of top balancing followed by a capacity test of each cell. This will take some time...

Overall very happy with the transaction so far. Thank you @Amy Zheng !

PXL_20211002_184637326.jpg
 

Shamoke

New Member
Joined
Sep 15, 2021
Messages
18

@Amy Zheng

Regarding BMSes,
I think most people are buying cells in multiples of 4, therefor I suggest you import 1 or 2 models for each bank variant (4S, 8S, 16S).

In my opinion, you should concentrate on models capable of 0.5C of you average battery size.
Assuming you sell mostly 280AH-304AH you should import BMS in the 140A-152A range.
I think new smaller and enclosed model of JBD Smart BMS 150A with Bluetooth (https://www.aliexpress.com/item/1005002338673024.html?) will be optimal.
Also newer 200A with built-in balancer (https://www.aliexpress.com/item/1005002958135242.html) and handy cable leads looks good.

Regarding cells purchase,
I am looking at http://www.powerwholesale.net/usa-d...4v-48v-320ah-storage-battery-bank-p-3882.html. The description is confusing, are EVE 304 or CATL 304?

Also the website (http://www.powerwholesale.net) won't allow placing orders and HTTPS (encryption) is not enabled.
How exactly the transaction is done after the details are discussed over email? Where the payment goes? Do you provide PayPal invoice or similar?

Thanks.
Excuse my ignorance but what are EVE cells and what are CATL cells? What are the differences?
 
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