Never tried the lower amp sealed once, always ones with a case that can be unsrecrewed. Fastest one sealed I have seen was 5a and it gets hot as hell too 
You should check your series, that is most likely the problem. Balance them out and it will get better for some time hopefully.
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Most off the time calibration was a little bit wrong in the factory. You can calibrate the bms in the app or windows program
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Yeah wat Pjotr said.
Me and a friend we bought the same charger (10S 5A) and after measuring mine did 4,7A max and a his only 4A. On top of that I had the calibrate the smart BMS because mine was ‘supposably’ charging at 4,5A but it was 4,9A according to my multimeter
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Quick update
Definitely the bms.
Got watt meter hoked up @48.8v it reads 6.3a while bms still reading 4.8 
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Tap on config on the app and go to the current calibration tab, try put the charge current to 8000 mA. I think that’s what I did for mine. It was charging 3A and I was bitching to the manufacturer that produced the charger. But it’s actually the BMS.
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Can’t find that option in the app
Ah shit. I gotta pay $5.99 for the app now 
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wait I thought you have the iOS version from the picture? There gotta be a current calibration parameter somewhere in the Android app.
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Spot on brother. Happy bms with correct reading now. Thank you 
Oh yeah. Had to pay $5.99 for the iOS pro version
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How does it make sense that the xiaoxiang IOS app has charging calibration and android app doesn’t??? Does the pc app have it? I don’t have BT on my pc to try it out…
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Because the iOS app has nothing to do with the factory. It is just a guy who is building it. And 6 euro for that app is a cheap.
Pc app has extra options then android but you need a usb dongle
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pc has it for sure, i got scared how many options it has haha
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Hey, do you maybe know if we can use 12s versions for 10s batteries of this bms?
Pretty sure you use them for longer than me 
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It can but you need to desolder-solder the pads under the balance wires and edit some firmware things on the pc software.
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Thanks I dont have the pc module or the instructions i will just order some
I wish I saw this earlier. The pc app can do this, free.
Also if you’re doing high amps on skinny wires, there will be a decent voltage drop across all the wire.
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Nice, never saw the documentation file before!
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