Super Soco TSx keeps going after battery meter hits 0%
Hi! Long time lurker here. A few months ago I bought a TSx and so far I am quite happy with it. The thing is that once the battery indicator hits 0% the bike can keep going another 7 km give or take. Is this normal? Anybody has similar issues? The dealer says everything is normal with the bike and the battery after I took it to check that out.
Strange thing tbh. The BMS should cut off at a specific voltage and display indicator should have it's 0% dailed in at said voltage..
Try riding it past 0% a couple of times to see if it "syncs".
Does the scooter turn off at any point when it's below 0% after which you can turn it back on and continue to ride albeit slowly? This could point towards the voltage sagging below the BMS cutoff voltage and jumping back up after the load is disconnected (aka scooter turned off). After it has jumped back above the cut off voltage you can start the scooter, ride again until the cycle repeats.
Ok, so my battery is at 54% charge according to my TSx dashboard and voltmeter shows 66.1V. The TSx battery is the same as the TC if I'm not wrong (60V30ah). Will test again at 0%.
EDIT: Did a test at 0% battery (rode a couple of Km at 0% before stopping home), Voltmeter shows 57.6V. Is this normal?
Only if it’s useful, the battery fully charged shows 73.1V in the voltmeter
Well ain't that something!! Showing 0% but still 57.6v/17=3.38v per cell!!
Get in contact with Sumco about this since it's a faulty BMS, display or communication wire.
To discard a potential faulty BMS, you can check if the low voltage cutoff is at 3v per cell (51v total battery pack). Although as I said earlier, it might not be worth testing since lord knows what nasty surprises await in the abyss that is Sumco proprietary hardware..
Glad I suggested checking it with a voltmeter 🙂 Now you can go below 0% and check it every now and again to make sure you manually keep above 51v for reasons stated above.
Before you know it you will get a feeling for how much juice you actually got left.. but hopefully Sumco can do something about it ASAP (although I wouldn't hold my breath tbh)