Mariner62
New Member
- Joined
- Dec 29, 2020
- Messages
- 84
Will do that when I receive the SEPLOS kit. Until then all cells are hooked up in parallel.Perform capacity test for both WH and AH and post results please.
Will do that when I receive the SEPLOS kit. Until then all cells are hooked up in parallel.Perform capacity test for both WH and AH and post results please.
I'm all ears ... I was planning to fully charge and final balance then apply a constant load until empty while monitoring the voltage and current each minute. Quick integration on a spreadsheet gets me Wh and Ah.no no no, that wont give proper reading... but ok we'll take it.
Ah ok, now I understand what you would prefer. It's a good point. Let me look into that a bit more.if you want to test the cells you need to do it 1 cell at a time with either a fan tester or something like the zke-40 that willl give you proper results/cell.
This is all I plan to do - properly top balance all the cells, then do a discharge test of all 16 in series. The battery will only be as strong as the weakest cell, so this will give a good indication of the overall quality without the equipment and massive amount of time required to charge and discharge each individually. I'm not really bothered by a few Ah difference between each cell, this should be expected in any case as they're B grade.I'm all ears ... I was planning to fully charge and final balance then apply a constant load until empty while monitoring the voltage and current each minute. Quick integration on a spreadsheet gets me Wh and Ah.
Is there a better way? (Without buying more kit?)
Ok, to buy a ZKE 40 is around A$500. Too much investment. There is a cheaper option which discharges at 5A, but I would be testing till January with that one.Ah ok, now I understand what you would prefer. It's a good point. Let me look into that a bit more.
No sooner mentioned ... the SEPLOS Mason 280Ah enclosure arrived today. Interestingly, the courier said there is a second package that will be delivered tomorrow.Hopefully the Seplos enclosure will turn up soon.
How much did it cost you for it to clear customs? Mine has arrived but they want $1200 to clear!No sooner mentioned ... the SEPLOS Mason 280Ah enclosure arrived today. Interestingly, the courier said there is a second package that will be delivered tomorrow.
SEPLOS have separated the delivery into two packages, presumably to keep the weight down. The package I received contained the enclosure, the BMS (fitted) and some plastic separators only
Presumably the busbars, fuse and other hardware is in the second package coming tomorrow.
@jpetrak the first box was delivered with no additional charges. The second package still has not arrived.How much did it cost you for it to clear customs? Mine has arrived but they want $1200 to clear!
Just the empty kit but with base stand and cables. Looks like I got tricked by the freight forwarding company Airwave. I got the arrival email with a vauge do you have a customs broker assigned yet if not sign this. Well I signed it thinking 165 roughly and all the other fees are just what they charge for a full shipping container. Well they charged me all those fees and more. $58 Cartage-Fuel hints at how ridiculous it is.@jpetrak the first box was delivered with no additional charges. The second package still has not arrived.
Did you order just an enclosure kit or did you order cells too?
Ok, to buy a ZKE 40 is around A$500. Too much investment. There is a cheaper option which discharges at 5A, but I would be testing till January with that one.
So, it's a nogo from me on the single cell tests. I will test as a battery. I'm happy with that test as it's how I plan to use the cells, and as @octal_ip noted, the result will be dictated by the weakest cell.
I've done this previously with 4 cell and 8 cell configurations and was happy with the results.
The courier was wrong. The second package from Seplos was not delivered the next day and has now gone AWOL. The local courier company who delivered the first package (Couriers Please) are asking for the Con Note number to track it, but they don't recognise the Con Note number printed on the first package, so they tell me they cant do anything.No sooner mentioned ... the SEPLOS Mason 280Ah enclosure arrived today. Interestingly, the courier said there is a second package that will be delivered tomorrow.
SEPLOS have separated the delivery into two packages, presumably to keep the weight down. The package I received contained the enclosure, the BMS (fitted) and some plastic separators only
Presumably the busbars, fuse and other hardware is in the second package coming tomorrow.
Thanks Alkaline, that looks like a better value gizmo at US$50. Advertised max discharge is 25A, assuming that is possible, then the process would still take me a few weeks to complete, not to mention X weeks for delivery of the gizmo to Oz.YOu dont need to buy that you can get this one it is much cheaper:
only $50
Can someone please post a link to the Luyuan store on AliExpress/Alibaba, my search abilities don't seem to match their search engine
Shenzhen Luyuan Technology Co., Ltd. - Lifepo4 battery, LTO battery
Shenzhen Luyuan Technology Co., Ltd., Experts in Manufacturing and Exporting Lifepo4 battery, LTO battery and 0 more Products.szluyuan.en.alibaba.com
It's now more than 2 weeks since part of my Seplos Mason DIY Kit was delivered. The other part is still AWOL. The fault is with the local freight company Border Express who have now assured me three times that it will be delivered "tomorrow", but as the old song says, tomorrow never comes. Very very frustrating. Seplos can't dispatch a replacement package until this one is officially "lost". Border Express keep saying its not lost, but despite their promises, they seem incapable of actually delivering it. What a contrast to the slick and professional delivery of the Eve Cells from Luyuan.The courier was wrong. The second package from Seplos was not delivered the next day and has now gone AWOL. The local courier company who delivered the first package (Couriers Please) are asking for the Con Note number to track it, but they don't recognise the Con Note number printed on the first package, so they tell me they cant do anything.
Seplos initially said they will investigate, but now they wont answer my emails. What a frustrating shemozzle!