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    Anyone willing to share a good LTO supplier?

    Did You buy Your batteries from OAN? I do not know who they are? I bought most of mine from OSN, the latest OSN message to me claims that their batteries are unused, manufactured 2020, fresh, not rewrapped and that I should order more immediately since prices are going up. Since I have already...
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    Anyone willing to share a good LTO supplier?

    Look, I have 440 pcs 40Ah LTO:s. They all were "new, unused, class A" batteries when I bought them. When they arrived, they all were much used, almost all rewrapped, but working batteries. I am using these as two parallel packs, 10P 22S each. With two 2A BMS and several chinese 5kilowatt...
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    General battery pack/PV planning

    I have still a couple of questions: - where could I find information of the Yinlong 66160H serial numbers, and what they mean? - Is it possible to find the manufacturing date, capacity etc. from it? The "new" 66160H cells are a bit funny, they have this 12 Nm marked tightening torque, I...
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    General battery pack/PV planning

    Hello again. I have bought more Yinlong LTO-cells. Now I have a bit over 440pcs 66160H 40Ah, but I have not had the time to build more packs yet. A question: - Most of these LTO cells have the marked tightening torque 7Nm, but the newest cells (120pcs, the latest buy) have 12 Nm. - Does...
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    General battery pack/PV planning

    I am not using a real BMS at all. Only an equalizer/balancer and some automatic circuit breakers. I do not know anything about this Orion Junior, but check this! https://secondlifestorage.com/showthread.php?tid=7462&pid=51481#pid51481 The modification took about one minute. I have bought two...
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    General battery pack/PV planning

    Hello. I have built a LTO battery pack, using 110pcs 40Ah 66160H LTOs, 5p22s. I also have an active 2A balancer, (from Aliexpress) and it works beautifully. (after I modified the start voltage checking) The three mppt inverters I am using with this pack are Chinese off-grid 5000W230Vac 48V...
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    LTO Battery question

    I am a Finn and live in Finland right now. Still do not know what to do with OSN, if they would start to tell the truth, I might buy from them again. My cells came through (or maybe from) Hungary. Yinlong has bought a company, Icarus, that manufactures also electric buses in Hungary. So these...
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    LTO Battery question

    Yes, does not look like a very stable tower. How many did You have in each box? Styrofoam inserts? Did Your cells come from OSN, if so, who was the seller-person, mine used the name Susie Wang, might be a hairy man, who knows? First mine were shipped by boat from Hongkong, I asked but OSN...
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    Balancing troubles...

    OK, You are right in that. /Piglet
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    LTO Battery question

    .... No free unicorns with each cell.. Good, no place for those. Actually the dents are small, no hammermarks, could have caused when they have transported loose cells in a box. The boxes where the cells arrived were brand new, very well made with styrofoam inserts, 18 cells in a box 6 cells...
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    Balancing troubles...

    ???? I am sorry, I did not realize that this is Your private thread. :huh: Since You ask, I have no problems for future things. I have had a solar system for several years, now 36pcs 300W mono panels, 4 hybrid 5kW Chinese MPPT inverters in three phase, 40kWh AGM right now and building...
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    Balancing troubles...

    Correct, but the hybrid inverters and automatic fuses give pretty good protection. The equalizer gives some protection also, not so easy to cook an individual cell since it tries to keep the 6P cells similar to the other 6p cells. I am going to have, to start with, 20S6P 40Ah LTO pack. Now I...
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    Balancing troubles...

    Hello from Finland. I just bought an active balancer for my 105 40Ah B-grade LTOs. It is a normal 2A Bluetooth Balancer Li-ion Lipo Lifepo4 LTO Battery Active Equalizer 2~24S, from eBay. Interesting was that it DID NOT work with my LTOs. The seller claimed that it works with LTOs!! So it...
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    LTO Battery question

    The seller was OSN. They did claim that these cells were "Brand New B-grade 40Ah cells". Now they sent also a video, that according to them shows Yinlong rewrapping the cells. To me it looks more like the garage of a minor "jobber", not a very, very big actor like Yinlong. In the beginning it...
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    LTO Battery question

    Hello again. Now I have tested 14 of the 105 cells. All are used, with dents and rewrapped. They work about as they should, IR 0.27 - 0.34 milliohms, Ah close to 40. When charging them, some take charge much faster than some although they have almost exactly identical voltage when I started...
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    LTO Battery question

    I have posted this on a different thread also, sorry if it is not OK to post it here too. Good to know if You are buying Yinlong LTO:s from China. ------------------------------------------------------------------- Hello. I have bought 105 pcs. of 66160 40Ah "BRAND NEW" B-grade cells from a...
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    EOI - New Yinlong LTO cells Australia

    Hello. I have bought 105 pcs. of 66160 40Ah "NEW" B-grade cells from a well known Alibaba seller. Cells arrived a few days ago. When I opened the packages, I found 105 rewrapped cells, blue wrap without the normal "Yinlong" texts. There was a white barcode label with serial number and capacity...
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