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    High power SLPB60460330 70Ah Kokam cells (21 available)

    I sell x21 Kokam SLPB60460330 70Ah high power cells. These has been used on a prototype with less than 30 charge/discharge cycles. Then these have been stored @~40% SOC in an appropriate temperate room. Cells are located in France, but I can ship at buyer's expense. From 125€/cell, depending on...
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    Original A123 20Ah cells new & used available

    Hello, I have a bunch of never used brand new A123 20ah cells and a bunch of used cells which was used for testing (<50 cycles). I have around x20 new cells and around x70 "used" cells. All of them stored @ ~50% SOC. I can provide a capacity test if needed. From 45/cell for new ones and...
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    Samsung 25R/LG 18650HE2/ Sony VTC5 high power 18650 battery

    Yes and nothing comparable for example with 26650 A123, which can be easily charged at 6C. There are still not any nmc/nca 18650/26650 cell rated over 200wh/kg capable to face with high power lfp cells ?
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    Samsung 25R/LG 18650HE2/ Sony VTC5 high power 18650 battery

    Hello, Does someone tested the high power capabilities of these cells in the other way, in charge ? I mean fast, to ultra fast charge ? The Samsung INR18650 25R can handle 35A continous in discharge, what's it worth in the other way ? What about the LG ICR18650-HG2 or Samsung 30Q ?
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    New Panasonic Cell ncr18650bd 3200mah

    I ordered few weeks ago from a "main" battery supplier on Alibaba different Panasonic NCR18650(A,B,BE,BD,PF) cells to make different tests on it and try to feel real differences between all these cells. On first cycles, each cells seems to be compliant with their specs but I already made hundred...
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    EMUS BMS with small sensors for pouch cells

    Hi Vile, I didn't seen your post before, but if you're still looking for informations on EMUS BMS modules used on pouch cells ; please find some pictures of one my EMUS system which works perfectly on a 32sp3 A123 battery pack. PY
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    Kelly controller is dead after update software(Solved)

    Hello, I've the same problem on a KHB controller (red led stay always on) after a configuration ; i can't reflash the controller because I can't communicate on the serial line. What did you do exactly to solve the problem ? Thanks.
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    Definitive Tests on the Heating and Cooling of Hub Motors

    I only drive on asphalted road in city or Parisian suburbs, rarely under rain and never under snow and I plan to fix a fine mesh screen on each holes. That's should be enough to prevent from dirt going inside, isn't it ? And if that's not enough I can add a filter on air pipes...
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    Definitive Tests on the Heating and Cooling of Hub Motors

    Hi madmax, Oil cooling is an interresting way for our hub heating problems but apparently it seems to be pretty hard to retrofit a hub to obtain a perfect sealed enclosure to prevent oil from leaking outside. And I didn't removed the disgusting oiled combustion engine from my motorcycle to put...
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    Definitive Tests on the Heating and Cooling of Hub Motors

    Ok, but if the exterior axial blade is embraced by an air forced duck (natural or not) almost like on the old drum brakes, the air flow coming from 90° off axis isn't a problem isn't it ? I agree that's not easy to fit on an e-bike but it could be conceivable on a larger hub on a motorcycle...
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    Definitive Tests on the Heating and Cooling of Hub Motors

    Hello, I'm really interested by your results Justin, thanks to share your experiment and results ! I'm thinking since few month ago, to add some holes in my Enertrac Hub to prevent it to overheat after 10km of ride. (first generation of enertrac hub without cooling holes on covers) I red all...
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    I won the French e-bike competition

    I just came back from the ECarTec exibition in Paris. I saw Willow and his trike ; one of the most exciting motorcycle project at the exibition (I was a bit disappointed by the lack of innovative projects exhibited this year...) Willow's trike is pretty cool and it seems over-powerful for the...
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    Adjusting King Power chargers

    Yes I know but I'd like to control the charger shut off with the HVC line of my BMS without using an AC relay.
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    K2 Energy Power Modules

    Hello, Who finally used and tested these K2 battery in real conditions ? I've the opportunity to buy some K2 90Ah modules at a good price and I'd like to know what is the real quality of these cells, vs Winston, Calb, GBS, Hipower or Synopoly cells. These modules will be use in a 22kW...
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    Adjusting King Power chargers

    Hello, Does someone know how can I control my 600W KP charger with an HVC line, out from my bms ; without an AC relay on the main line. Where could I add an on/off relay signal input on the KP charger pcb ? Thanks for your suggestion ! PY
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    A123 20AH cells source?

    No, this price not include the shipping costs. Below, the reply I received from OSN Power about the min cell capacity : " I think the cells we got from the OEM factory is not as good capacity as those from A123 SYSTEMS directly, maybe that’s why we could get them at a lower price. You can...
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    A123 20AH cells source?

    Anyway, the cells proposed by OSN Power seems to me to be differents from the official ones. The specs provided by OSN Power specify a min cell capacity around 18.5Ah contrary to the 19.6Ah announced by the official spec. So, either this is fake cells, or, as the 20ah cells ordered on A123rc...
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    A123 20AH cells source?

    I recently asked OSN Power to get a sample of few A123 20Ah cells, they sell it for 26$ each. But effectively, what worth these cells ? Buy some A123 cells looks like a real treasor hunt for me. But does A123 System tried and almost succeed to control their cells sales until they were only...
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    To: EP/KP series charger users who use them for LiFePO4

    Hello, I'm currently doing some tests on a headway battery pack and I'm looking for a solution to power lock/unlock my EP charger from an external source (BMS with a HV signal). Does someone know how can I use the daugher board or an other pin on the charger to add this functionality to my...
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    Headway 16Ah max charge rate

    Hello, I'm using this cells for few month and for the moment I charge it around 1C... But i'm thinking on a new project with a very fast charging capability (main spec : 48v, 48Ah, charging rate >=3C), to reach a 30min charging time. Does someone ever tried and verified the 3C rate capability...
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    Infineon controller identification

    Thank you for this thread link ! First I will try to connect to the controller to program it... In your opinion this controller is compatible with the regen mode ? If i'd like to increase the maximum current, should I re-program it and re-trace the shunt, or the program modification is enough ...
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    Infineon controller identification

    Ok, so in your opinion I can't modify the configuration. That meen that there is no upgrade possibilities, like the maximum current ? If I'd like to increase my GM motor power i need to buy a powerful controller ? Thank you
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    Infineon controller identification

    Hello, I bought few month ago a basic 48V/1kW controller to a Chinese Ebay seller which works fine whith my "GM type motor". But, I'm wondering to upgrade it for a Lyen Infineon type controller to use the speed avance timing, CA functions and possibly the speed modes. First of all, I've opened...
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    Headway Pack Builders thread

    I will probably buy soon an "Headway" BMS to finalize my EV moped project but I've a last question about the balancing current... I've a 48v 16Ah battery pack (16S1P Headway 40160S) that I charge with a 600W KP series charger (58.4V / 10A) (For the moment I balance my cells manually for my...
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    Capacitance balancing BMS connection

    As for me, I didn't solved my problem. My BMS still don't works. Michael asked me to send him back the BMS to find the problem, but the shipping costs are at my charge and I really doubt that he will find the problem. I'm afraid that I will pay 35$ more for nothing... It's his words against...
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