Author Topic: SUPER LifePo4 Deal (280AH LFP)  (Read 315 times)

Steve_S

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SUPER LifePo4 Deal (280AH LFP)
« on: February 21, 2020, 05:30:23 AM »
Hi folks,

I am in the process of converting to Lifepo4 Battery Packs from my current Rolls Surette FLA Bank.
The FLA bank is 856AH @ 20hrs for 428AH/10Kwh @ 24VDC useable which turned out to be a tad short for my needs.
I have already installed 24V/350AH of LFP and am now adding another 560AH for a total of 910AH.

During the process of investigation I came across this company which has an outstanding deal on cells.  Other members within my group have already purchased, received & tested the cells and they are indeed Grade-A and meet specs right on the button.  The sales Representative Amy Wan is outstanding in her commitment to communications and dealing with us customer's, she even goes out of her way to message after hours to connect.   They will also send you photo's with your Name Card on the cells while being tested & packed as well as a video during the cell voltage tests.

4 cells = 12V, 8 cells for 24V, 16 Cells for 48V.

I HAVE NO CONNECTION TO THE COMPANY, I am just a customer and want to share a great find for everyone's benefit.

Company Name is Xuba Electronics.
4 PIECE LOTS: 
https://www.alibaba.com/product-detail/4PCS-Lifepo4-Rechargeable-3-2V-280Ah_62401757288.html?spm=a2700.wholesale.deiletai6.1.96e2450flrJUTr&bypass=true

Singles:
https://www.alibaba.com/product-detail/Hot-Rechargeable-3-2V-280Ah-LiFePO4_62401469185.html?spm=a2700.icbuShop.0.0.764520d22qNJc8&bypass=true

BMS Suggestions:
I can recommend Chargery BMS which are a good solid BMS system with built in balancer.  They are programable, have a remote for monitoring, programming etc and can have the firmware flash updated as well.   Support is very good and the BMS's have a flexible configurations allowing you to configure as Common Port or Separate Port modes for charging & discharging.  * Chargery also has Cold Temp Disconnect  *
Chargery BMS Link:  http://chargery.com/balancer.asp   Can be purchased directly through Chargery but also through the next link. 
https://yiruikeji.en.alibaba.com/productgrouplist-810631448/Chargery_BMS_and_Power_supply.html?spm=a2700.icbuShop.98.18.3d1c458e9wCjy6

There are other BMS's with various features & functions up to and including BlueTooth, WIfi etc...


TESTING STUFF:
180W / 20A cell capacity tester:

https://www.alibaba.com/product-detail/8-In-1-150W-180W-Digital_62090055059.html

Battery Charger: (for charging separate cells up to a 12VDC pack, used for testing)
Voltage Current Adjustable Lifepo4 Lipo Li-ion Battery Charger 12.6V 14.6V 3S 4S
- 75A 50A Voltage Current Digital Display Lithium Charger
I purchased THIS ONE: The GREY 3V-15V Adjustable 50A unit. $105USD free shipping.


IC GOGOGO EBAY https://www.ebay.com/itm/192923407126
ALIExpress IC GOGOGO Store:  https://www.aliexpress.com/item/33019693095.html

Current / Voltage & AHr meter to read the input during charging & as a double check during load testing.
DROK VAC9010H Voltage Current Meter Voltage Amp Meter w/1.8" LCD Hall Sensor 90V 100A

EBAY LINK (shop it):  https://www.ebay.com/itm/VAC9010H-Voltage-Current-Meter-Voltage-Amp-Meter-w-1-8-LCD-Hall-Sensor-90V-100A/283684434365?hash=item420ce8f1bd:g:w-MAAOSwIuBd15OA

This is also getting extensive discussion on our forum:  https://diysolarforum.com/threads/xuba-electronics-deal-280ah-lifepo4-cells-purchase-review.3850/  if anyone wats to follow along.
Classic-200, Samlex EVO-4024 Inverter/Charger, 2080W of Canadian Solar CS-260P in 2 strings of 4,  8x Rolls Surette S-550 24V/856Ah battery bank.  1, 24V/400AH LiFePO4 pack (new)
System Detail: http://midniteftp.com/forum/index.php?topic=4643.0

ClassicCrazy

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Re: SUPER LifePo4 Deal (280AH LFP)
« Reply #1 on: February 21, 2020, 05:26:43 PM »
I didn't take a very close look at all this yet. The one thing I noticed is that it is only 1C output where a lot of lithium have a much higher discharge capacity.  Guess it doesn't matter if the 1C suits the needs.

Larry
system one
Classic 150 , 5s4p  Kyocera 135watt , 12s Soneil 2v 540amp lead crystal for 24v pack , Outback 3524 inverter
system two
Classic 150 ,5s 135 watt Kyocero , 16s Calb 100AH LiFePO4 , Outback VFX 3648 inverter
system three
Midnite KID MPPT 24 DC in to  12 volt AGM batterie