Recent content by piwhy

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...

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...

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 ?

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 ?

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...

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

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.

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...

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...

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...

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...

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...

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.

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...

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