Hi Have you got your cells yet: Rosco From Australia
New Supplier for 280Ah cells: Shenzen Basen
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Robert470
New Member
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- Jan 1, 2021
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New to the group and after reading all these past post, I just placed an order of 8 of the EVE 280ah 3.2v cells as per Sheila from Basen, $85 per cell plus shipping. From what I was seeing it sounded like a decent price??? Now comes the wait, what was said earlier something about “the slow boat from China”. Don’t you guy stress any buying batteries this way??? I’m not sure if I’ll be able to sleep until they get here.
The first couple orders, you get a little stressed due to the length of time between order and delivery.
After you experience the process, you realize that the vendor doesn't get paid until you acknowledge that you received the product intact. They want you to get your product as much as you do. At that point, it's about verification of quality.
Keep your patience.
DerpsyDoodler
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Do you confirm you received it before you verify quality or do you wait until after you’ve verified?
Acho_303
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Well alibaba just assumes you got them if over 30 some odd days and releases the money... it has happened to several people, and to myself... this Friday makes 40days since shipped for my order....UPS does have my batteries and are inbound to Colorado from California... If the cells are damaged I have seen other thread where the seller sends replacements...
DerpsyDoodler
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If you don’t extend the delivery time. You can extend the time for receipt confirmation.
I just finished a capacity test for my 280ah EVE 2p24s battery wall. I had just put the cells in randomly without testing them so the weakest two cells limited the whole pack.
I ran the test with a space heater at 1590 watts for the duration. Started with the cells floating at 3.4v (so not full), and finished when the first hit 2.5v.
The results were 528.6 AH, or about 94.4% rated capacity. Also 41.0 KWH.
I had a few groups a 3.08v at the end, which could have probably pulled full capacity. Probably could get a few more % capacity by moving cells around.
They were 4381.27 on the credit card delivered so $107/kwh usable
about 58-60f for the test
voltages:
2.499
2.62
2.666
2.687
2.739
2.822
2.894
2.921
2.923
2.929
2.941
2.945
2.969
2.998
3.02
3.02
3.031
3.032
3.034
3.048
3.065
3.066
3.08
3.081
I ran the test with a space heater at 1590 watts for the duration. Started with the cells floating at 3.4v (so not full), and finished when the first hit 2.5v.
The results were 528.6 AH, or about 94.4% rated capacity. Also 41.0 KWH.
I had a few groups a 3.08v at the end, which could have probably pulled full capacity. Probably could get a few more % capacity by moving cells around.
They were 4381.27 on the credit card delivered so $107/kwh usable
about 58-60f for the test
voltages:
2.499
2.62
2.666
2.687
2.739
2.822
2.894
2.921
2.923
2.929
2.941
2.945
2.969
2.998
3.02
3.02
3.031
3.032
3.034
3.048
3.065
3.066
3.08
3.081
Last edited:
MadMacks
Off Gridder
Emily let me know a few weeks ago that they’d decided to ship replacements rather than wait for the unloading of the APUS ONE. Today I received notice that the replacements have arrived at the Long Beach Port and have been transferred to the FedEx system for delivery. Great news for me...hopefully in a few days I’ll have them as I’m in the Virginia City Nevada area and truck delivery shouldn’t take long.
MadMacks
Off Gridder
Why can’t you wire up like this?
You’d only need one BMS and you’d have the equivalent of two parallel strings. It’s what I am doing with my soon to be received 280ah batteries to have a 560ah 12vdc nominal battery bank.
MadMacks
Off Gridder
Well, all 20 batteries showed up today and they all look great and tested out at voltages between 3.291 and 3.297 so that's pretty consistent.
Out of the 20, 4 have a little oxidation in the threads of the terminal posts, at least enough to that I couldn't finger thread them all the way down. I could use likely use an Allen wrench and thread them down but I don't what to mess them up. Any recommendation on the best way to clean these internal threads? I have dialect grease, dry Teflon lube, and silicone lube but don't want to start squirting things into the threads unnecessarily. I have a proper tap and die set but the post thread are really deep enough to use them. I also have some green scrubbing pad I was thinking of cutting into small pieces and threading them in and out to clear the threads. But, I'm hoping someone here has the "proper" solution. Anyway very happy so far! Emily Peng came thru for me after the APUS ONE disaster!
I experience that all the time, and don't see it as an issue.
Just take care screwing them in and you'll be fine.
I always start screwing in reverse, until I feel the 'click'.
Then go forward gently, just to be sure.
Edit:
If I did think there was an issue, I would use one of these:
Taps are tapered, whereas these aren't.
Just take care screwing them in and you'll be fine.
I always start screwing in reverse, until I feel the 'click'.
Then go forward gently, just to be sure.
Edit:
If I did think there was an issue, I would use one of these:
Taps are tapered, whereas these aren't.
Last edited:
Kind of cool - I ordered 40 Basen cells and they came with grub screws. I have only opened 1 box so far but I hope all of them have the grub screws. They look like they are tapered at the base also which is good. They are 3/4" long, so 19mm
My company ships a bunch of products with batteries and also loose batteries. We have a compliance team that deals with proper labeling and other compliance issues. My understanding is that cells like these require a dangerous good classification with proper labeling dependent on the chemistry.
It's not that these things can't be shipped, but it's not like shipping a box of rocks. You ship enough batteries without doing it right and eventually something is going to go sideways. You just hope it doesn't happen at 30k feet in the air. There are a lot more "thermal events" with batteries during shipping than you ever hear about.
There are also a bunch of batteries shipped that are not properly documented and out of compliance. I have no idea if these battery vendors are playing by the rules or not with their shipments via fedex. Are the boxes clearly labeled with battery info?
I'm not trying to get around the rules. I certainly don't want someone getting hurt if I avoided doing the right thing. These cells came all the way from China without any markings. They arrived by FedEx ground, so I want to send them ground.
I'll print out the labels and apply them. What is the UN number for LiFePO4?
According to your chart, I need a contract with UPS to ship these. (>300Wh). How does all that happen? Just go to an office and ask? FedEx is similar, but they don't give you the resources to get it done.
Not sure of the details, but here is the contract in question.
If its just a one-off shipment, and its under 30kg, and I was doing this as a non commercial shipment, I would just discharge to 10% or so, box it up and send it. Properly protected and at low SOC they are pretty minimal risk, especially compared to a laptop battery or similar at full charge.
If its just a one-off shipment, and its under 30kg, and I was doing this as a non commercial shipment, I would just discharge to 10% or so, box it up and send it. Properly protected and at low SOC they are pretty minimal risk, especially compared to a laptop battery or similar at full charge.
Thanks Luthj,
I am trying to ship 16 - 280Ah cells. 4 boxes of 4. (about 23kg each)
There is a definite chance that this will be a repeat thing. That's why I want to get it right.
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