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Anyone tried ordering LiFePo4 from China ?
#1
Hi,
I have been looking at Alibaba and Global Sources for a manufacturer that can deliver 41pcs prismatic 100ah 3.2 LiFePo4 cells and i have got a price of 54$/piece including shipping and custom clearance. It seems a good price. Has anyone dared to try cells from China ? These are Tipsun cells but i have no idea if it's just very few manufacturers that makes these then some other company buy them and put their name on them. I could start getting a sample and test that but then again who knows if the sample they send is good then they send some crap. They send me some documents and pictures on the batteries and how they are tested but then again everything can be fake. 

/donnib
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#2
My very first order was some "2000mah" Ultra Fire cells - turned out they had average of 1100mah.

Earlier this year, I tried to order some 18650s from 3 separate China based listings - thinking that at least 1 would be OK. They were advertised as new/name-brand and detaled -list-of-specs. They arrived and were new BUT only had 60% of advertised mah. In all 3 cases, when I requested a return, the response was... "Oh sorry, yes they are lower than advertised, how about 10% or 15% off the price".

I'm not saying all orders are like this - but none of my attempts were successful and I would be nervous doing a 'cold order'. If you could find someone that had done a specific order (and were happy) and you can order the same thing then perhaps that would reduce risk.
donnib and Ibiza like this post
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#3
(09-06-2019, 02:26 AM)OffGridInTheCity Wrote: My very first order was some "2000mah" Ultra Fire cells - turned out they had average of 1100mah.

Earlier this year, I tried to order some 18650s from 3 separate China based listings - thinking that at least 1 would be OK.  They were advertised as new/name-brand and detaled -list-of-specs.  They arrived and were new BUT only had 60% of advertised mah.  In all 3 cases, when I requested a return, the response was...  "Oh sorry, yes they are lower than advertised, how about 10% or 15% off the price".   

I'm not saying all orders are like this - but none of my attempts were successful and I would be nervous doing a 'cold order'.  If you could find someone that had done a specific order (and were happy) and you can order the same thing then perhaps that would reduce risk.

@OffGridInTheCity Thank you for the input. Yes that would surely be the way to go but i don't know anybody that knows a supplier of LiFePo4 which has tried them. I could try a sample and see where that takes me. Let's see maybe others can chip in with experiences with some suppliers.
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#4
Do you mean the prismatic cells?
I am planning to save for this:
https://www.aliexpress.com/item/40000223...QVGx0&mp=1
Or this one:
https://www.aliexpress.com/item/40001344...43OSP&mp=1
Basically the same amount, but for a cheaper price.

But did not buy them yet, probably will.
The maine concern is there cycle and there capacity.
Still learning English. Learning Li ion and solar technology.

4200 cells in packs Exclamation above 2500mah and 90%soh.
1500 waiting for testing.

Saving for 3 times phoenix inverter 48/3000 230v to gain also 380v
3 chargers?

Time is our enemy, must work to, the sun is our friend, must relax to.
With best regards
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#5
(09-06-2019, 10:38 AM)100kwh-hunter Wrote: Do you mean the prismatic cells?
I am planning to save for this:
https://www.aliexpress.com/item/40000223...QVGx0&mp=1
Or this one:
https://www.aliexpress.com/item/40001344...43OSP&mp=1
Basically the same amount, but for a cheaper price.

But did not buy them yet, probably will.
The maine concern is there cycle and there capacity.

Yes i am looking at single prismatic cells, just like in your link on AliExpress. My price above was for a single cell so if you want to compare than my price 169$ vs yours 216$ for a 1kWh
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#6
I think the big difference is, where they must ship to, import tax handling fee, danger money, ect.
I found them also way cheaper, but those prices where without shipping and ect
Some countries are more expensive to deliver in europe.

Can you provide a link and tell us where you are from?
Best
Still learning English. Learning Li ion and solar technology.

4200 cells in packs Exclamation above 2500mah and 90%soh.
1500 waiting for testing.

Saving for 3 times phoenix inverter 48/3000 230v to gain also 380v
3 chargers?

Time is our enemy, must work to, the sun is our friend, must relax to.
With best regards
Reply
#7
(09-06-2019, 12:18 PM)100kwh-hunter Wrote: I think the big difference is, where they must ship to, import tax handling fee, danger money, ect.
I found them also way cheaper, but those prices where without shipping and ect
Some countries are more expensive to deliver in europe.

Can you provide a link and tell us where you are from?
Best

I am located in Denmark and i see you are in Netherlands so i presume we have almost same VAT as far as i know 25% vs 21%. 

I do not have a link as such since i found multiple suppliers on Global Source and on Alibaba. The price that i got from them was door-to-door which in theory should include shipping, duty taxes / custom clearance and local vat but i am still a bit unclear since the Chinese as you may know are not that good at communicating clearly. I have some datasheets/test reports that i have received which i have attached here.


.pdf   100Ah Test report.pdf (Size: 1.92 MB / Downloads: 7)

.pdf   Tipsun-3.2V-100Ah-LFP Battery.pdf (Size: 416.63 KB / Downloads: 4)

.pdf   3.2V 100Ah Data & Test report.pdf (Size: 604.95 KB / Downloads: 10)
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#8
I ordered assembled battery packs in steel cases from these guys.
It worked out pretty well, local customs fees added a bit to it this end.
https://www.alibaba.com/product-detail/p...29797.html
https://www.alibaba.com/product-detail/r...61207.html
Packs have been running the house for about 1.5 years, going very well so far :-)
Running off solar, DIY & electronics fan :-)
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#9
Indeed alibaba is very unclear.
On aliexpress they make it very clear, no tax and free shipping, so no surprises.

Found this on there home website:
https://blslifepo4battery.com/pages/shipping-taxes

Did you do a capacity test after a year or so and did you keep track of the number of cycles?
Still learning English. Learning Li ion and solar technology.

4200 cells in packs Exclamation above 2500mah and 90%soh.
1500 waiting for testing.

Saving for 3 times phoenix inverter 48/3000 230v to gain also 380v
3 chargers?

Time is our enemy, must work to, the sun is our friend, must relax to.
With best regards
Reply
#10
(09-06-2019, 03:40 PM)100kwh-hunter Wrote: Indeed alibaba is very unclear.
On aliexpress they make it very clear, no tax and free shipping, so no surprises.
"Free shipping" can mean lots of things. Mostly they get it onto the boat at their end & deliver it to your countries port docks. Then you're on your own. Customs taxes & local delivery had to be paid for this end in my case.
(09-06-2019, 03:40 PM)100kwh-hunter Wrote: Did you do a capacity test after a year or so and did you keep track of the number of cycles?
I don't have exact numbers for capacity loss.
I have a Batrium system & my monitoring system shows typical DoD is about 30% to 50%.
About once a month, there's a few cloudy days in a row & it gets discharged to 70-80% or so. We conserve power more if we know it's cloudy.
The few occasions it has got down to a few % left, the predicted capacity still seems about right & cell holding up (just).
Running off solar, DIY & electronics fan :-)
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