I just assembled my battery with a new batch of cells, however before I did this I performed a capacity test on 4 cells and the final voltages of these cells were slightly off from the others (no more than 0.01v). Once assembled though the app is reporting a Max voltage diff of 0.05v and shows one cell in red. I plugged in the charger for a while hoping it might resolve this but now it’s increased to 0.068v. Is the BMS supposed to resolve this, and if so at what stage of the charge cycle? I don’t want to fully charge the battery just yet as the bike is still a work in progress and I have no convenient way to discharge the battery.
Bonjour David,
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Bonne journée
Frédéric
I’m confused. Why has this post been flagged and hidden?
Maybe you can find some relevant information in the thread about refurbished cells?
In this post Alex mentions that balancing happens only above 3.9v.
Mine simply won’t wake up unless I separate the the cell holder even though there is very very little voltage difference between cells. Plugging in the charger does absolutely nothing. I just have to complete the process as quickly as possible before it goes to sleep. This is also the case on subsequent RE-assembly too. At least one other owner has encountered exactly the same issue. Once you know the issue it easy quite easy to get around……just do it quick.
I had all sorts of advice telling me how to keep it awake and yesterday when I had to separate and rebuild I tried to put them into practice but all to no avail. I have accept we have odd boards and just get through the process as quickly as possible. I have to say I am getting quite adept at it though I still cannot achieve ten minutes even with the pack partially built. Mind you I am an old beggar. 
After a decent ride and 54% discharge the cells now have 0.0020 max voltage difference. I am more than happy with that. The battery performed flawlessly running for 31 miles using every stage of assistance. Even though I have pushed it power assistance wise I returned with 96 miles projected range remaining. At one stage riding in my normal manner i.e. 50% no assist (either switched off, free wheeling or over 15.5mph, 35% ECO and 15% Tour/Sport/Turbo my Purion display projected 250 miles of range remaining after 3 miles. After 13 miles it projected 200 miles of range remaining. I am using Samsung 35E cells. With this style of riding I was able to achieve 120 miles of range over one week out of my Bosch 300Wh battery so the figures are comparable. My only issue is there seems to be some sort of parasitic drain on the Infinite battery. During the period of Covid my Bosch was unfortunately fully charged when travel was banned yet over a year later it was still fully charged. The Infinite loses about 4% charge PER DAY!!! Even more if stored on the bike as it simply does not go to sleep nor does the OFF switch on the Purion power off the battery. This I presume is due to using an accelerometer sensor to wake up the battery. Plugging my Bosch charger in doesn’t wake it either. I have to move the battery or give it a slap for charging to start. Now it is not going to be major issue for me as my bike is in constant use all year round but anyone who stores their battery over the Winter months may be well advised to give it regular checks. It may not fully discharge when stored but it’s best to keep an eye on it.