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Alibaba LiFePo4 batteries

I didn't see that in the specs and haven't asked that question since the way I am not plan on using it in below freeezing temperatures. The Blutooth connection uses the XiaoXiang BMS App. I'm going from memory, but I think it does have temperature readings in the app and maybe high and low discharge temp alarms. I don't remember seeing a low charge temp alarm.
 
Is a low temp disconnect strictly necessary if the batteries are contained within an insulated containment with a heating pad and fans, such that the temp can be perfectly regulated to 25degC within the container?

edited....Just read some other posts on this now, so topic well discussed. (y);)
 
Last edited:
svetz said:
That's a myth perhaps I can dispel:
The Tesla Gigafactory 1 is a lithium-ion battery and electric vehicle subassembly factory near Reno, Nevada. The facility is owned and operated by Tesla, Inc. to supply the battery packs for its electric vehicles and stationary storage systems. They're not the exception by any means. See also: https://keepingstock.net/5-companie...ing-lithium-ion-batteries-market-acc2828719f5
Click to expand...

Tesla uses Panasonic batteries. Their Gigafactory assembles them into packs, but they are still Chinese batteries.
 
You pay the majority of the time through money transfers. You have to watch the supplier ratings and reviews.

I would be game for entertaining a group buy of a full container.
 
svetz said:
That's a myth perhaps I can dispel:
The Tesla Gigafactory 1 is a lithium-ion battery and electric vehicle subassembly factory near Reno, Nevada. The facility is owned and operated by Tesla, Inc. to supply the battery packs for its electric vehicles and stationary storage systems.
They're not the exception by any means. See also: https://keepingstock.net/5-companie...ing-lithium-ion-batteries-market-acc2828719f5
Click to expand...

Does the Tesla factory make LiFep04 batteries and Lithium Ion batteries or both?
 
This thread does not inspire a lot of confidence. "buyer beware"
I don't want to flush thousands of dollars down the toilet.

Here's a good deal I'm looking at. I'm considering splitting this order between myself and a friend and we can each make our own 24V bank from it.
www.dhgate.com

Deep Cycle 200AH Lifepo4 Battery 3.2v 200AH 3C High Discharge 600A Current For Diy 12V 24V 100ah 200ah For Pack EV Battery Depot Battery Operated Fan From Liuzedongnnnn, $2178.9| DHgate.Com

Wholesale 16pcs/lot deep cycle 200ah lifepo4 battery 3.2v 200ah 3c high discharge 600a current for diy 12v 24v 100ah 200ah for pack ev on DHgate.com are on sales now. Quality is guaranteed by liuzedongnnnn. battery depot, battery operated fan and battery powered led lights are top three best...
www.dhgate.com
 
I dont think a battery full of 18650 small cells equates to four winston cells in terms of cycles. Many of the manufacturing videos I looked at had heaps of small cells being spot welded together. Too many joins and how good is that little cell? Is it going to do 5000 or just 2000 cycles. My lovely Soshine 18650 batteries are among the good ones and they only advertise 1000 cycles.
There is a group here in Australia of dozens of guys (rv folk) who have winstons cells. Some use them daily. They have had them for six years now and none of them have lost cells etc. The use a simple PWM plasmatronics solar controller that they program. Many have victron battery monitors that switch off the charging and then divert the power to a hot water system. They use latching relays. They run alarm cell loggers or relays to cut off power at about 20 percent. They run induction stoves and split cycle aircons and lots of other stuff.
Many of the winston cells that are 6 years old are way past 1000 cycles. I have no faith that people buying anything called "lithium or LIFEPO4" in a 12 volt box full of little cells will get the life and cycles of those who manage (balance , high and low cut off) winston or similar cells (calb). Just my opinion. These guys are expecting 80 percent performance after 15 years. I think they might make it. Some will die before their cells do.
 
I must admit lots of people say treat your cells with care and you'll get 4-5000 cycles and only 2000 cycles if you use them hard. That's still 5.5 years of daily cycling, in that time another better battery will be out that you'd want anyway. I'm not going to worry about being too careful, using 11.8v - 14.0v is good enough for me.
 
I'm looking at $1 400 Australian to buy 4 x 200 amp hour Winston cells. If they dont last at least 10 years then the cost is very high. With 400 amp hours of AGM (rough equivalent and then some) it would cost at least $100 a year. If the winstons last 15 years then its just under $100 a year and of course the low weight, much quicker take up of all your solar power and no voltage sag at high amperages (inverters). So much better and if it lasts for 15 years its just as cheap if not cheaper. In my RV I will only be using it for about a third of the year so not lots of cycles. In 15 years thats 1500 cycles. I guess if it takes three days to use up what you charged -is that a cycle?
 
mrevesz said:
This thread does not inspire a lot of confidence. "buyer beware"
I don't want to flush thousands of dollars down the toilet.

Here's a good deal I'm looking at. I'm considering splitting this order between myself and a friend and we can each make our own 24V bank from it.
www.dhgate.com

Deep Cycle 200AH Lifepo4 Battery 3.2v 200AH 3C High Discharge 600A Current For Diy 12V 24V 100ah 200ah For Pack EV Battery Depot Battery Operated Fan From Liuzedongnnnn, $2178.9| DHgate.Com

Wholesale 16pcs/lot deep cycle 200ah lifepo4 battery 3.2v 200ah 3c high discharge 600a current for diy 12v 24v 100ah 200ah for pack ev on DHgate.com are on sales now. Quality is guaranteed by liuzedongnnnn. battery depot, battery operated fan and battery powered led lights are top three best...
www.dhgate.com
Click to expand...

The math says you are getting (16) 40ah (200÷16×3.2=40) batteries for 2k? Thats a lot of money for 40ah batteries. I picked up a set of these "like new" batteries off ebay. Came complete with top/bottom trays. Have had them in service for 3 weeks and are fantastic. Ordering another set this week. Seller still has lots available last I checked. The free shipping and US seller is nice too.
 
Newenough said:
The math says you are getting (16) 40ah (200÷16×3.2=40) batteries for 2k? Thats a lot of money for 40ah batteries. I picked up a set of these "like new" batteries off ebay. Came complete with top/bottom trays. Have had them in service for 3 weeks and are fantastic. Ordering another set this week. Seller still has lots available last I checked. The free shipping and US seller is nice too.
Click to expand...

You did some funny math there... You calculated the watt hours of a 12.5ah cell.

The cells are 200ah. The specs are for a single cell, and the ad is for a lot of 16 cells.
I went with the same product but only 8 cells. So 5.12 kWh for $1074
That's $209.77 per kWh. Not too bad.
It seems a good price as long as I don't get dinged too hard by customs when they arrive.

Here's the ad.
www.dhgate.com

US EU TAX FREE UPS Or FedEx Deep Cycle 3.2V 200Ah LiFePo4 Battery 3C For Electric Golf Car Rechargeable Lithium Ion Battery Powered Fan Battery Powered Heater From Liuzedongkkkk, $1156.79| DHgate.Com

Wholesale us eu tax free ups or fedex 8pcs/lot deep cycle 3.2v 200ah lifepo4 battery 3c for electric golf car rechargeable lithium ion on DHgate.com are on sales now. Quality is guaranteed by liuzedongkkkk. battery powered fan, battery powered heater and battery types are top three best selling.
www.dhgate.com
 
mrevesz said:
You did some funny math there... You calculated the watt hours of a 12.5ah cell.

The cells are 200ah. The specs are for a single cell, and the ad is for a lot of 16 cells.
I went with the same product but only 8 cells. So 5.12 kWh for $1074
That's $209.77 per kWh. Not too bad.
It seems a good price as long as I don't get dinged too hard by customs when they arrive.

Here's the ad.
www.dhgate.com

US EU TAX FREE UPS Or FedEx Deep Cycle 3.2V 200Ah LiFePo4 Battery 3C For Electric Golf Car Rechargeable Lithium Ion Battery Powered Fan Battery Powered Heater From Liuzedongkkkk, $1156.79| DHgate.Com

Wholesale us eu tax free ups or fedex 8pcs/lot deep cycle 3.2v 200ah lifepo4 battery 3c for electric golf car rechargeable lithium ion on DHgate.com are on sales now. Quality is guaranteed by liuzedongkkkk. battery powered fan, battery powered heater and battery types are top three best selling.
www.dhgate.com
Click to expand...

Hope your right. They are the worlds smallest and lightest (by about 50%) 200ah lifepo4 cells on the market. Let us know as that would be a fantastic price for 200ah at 24v (which is not stipulated). Also, thats was not watt hours. It was amp hours per cell of 200ah with 16 cells at 3.2 volt (50ah per cell) as it is not specifically stated 200ah per cell anywhere. Now the ad says 8 pcs 200ah 3.2v. Which is 80ah per cell at 3.2v. Not 16 cells you originally stated. So, 80ah at that weight and size is more likely. But if im wrong please point it out in the ad where it says 24v (series) for 200ah per cell. Or, what the kwh is? Im not trying to be an ass but just want you to be sure you are getting what they say you are. I went to BLS site and and it only says 3.2 x 8 pcs 200ah as well.
 
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Tesla battery VS 202Ah Prismatic battery

At https://www.alibaba.com/product-det...spm=a2700.galleryofferlist.0.0.44ebeab1ZuHvxO there is a good battery
with data 3.2V / 202Ah and with Life Cycle> 6000 times (100% D0D).
If you count 8 units to get 12.8V / 404Ah = 5171Wh. The price of the battery cell is 102 $ and it gives a cost of 26.3 $ VS Tesla 49$. The price gets a little higher as I did not expect BMS for ma $ 200.

I have received detailed specification from the seller, and the data seems good.

Mail contact:

Please check out updated spec in attachment.

The thread hole size is M6.

The batteries are from the same batch, all the cells will be balanced in one group before leaving factory, having the same charging capacity for being connected in series and in parallel.

For 16 x 3.2V 202Ah LFP Battery, US $102 per unit, sub total is USD1,632.
For 30 x battery connectors, US $2 per unit, sub total is USD60.

As for shipping fee, we have 2 options for you:
1. Shipping fee to door: USD610 (taxes and customs duty included)
Shipping time: 8-15 days
2. Shipping fee to door by train: USD290 (taxes and customs duty included)
Shipping time: 25-35 days


Has anyone tested this battery?


wondering
Staffan in Sweden
 

Attachments

  • RJ-3.2V202AH-R09.pdf
    488.6 KB · Views: 14
Thats a great priceprice! Same style. I use too. Keep us updated as I may be right behind you. Thanks for the update.
 
Steve_S said:
CATL is a Huge Company and leader in Lithium Batteries... They make & supply batteries for every sector, even Tesla & other EV makers have contracts with them.
Click to expand...
Ah ok, very good.
Only point of doubt now, is the cells on the sellers pics don't have catl on them, but on the official catl site, they do have big CATL on them. That makes me think it are cells that didn't pass quality and are sold by other parties. Positive note, deligreen, the seller is quite known
 
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