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    85v cut off for 74v 21700x20 battery pack?

    Hello, There is a pre-set 85v overcharge cut off limit on BMS for 20x pack of 21700 74v batteries, although I have read that maximum charge of 74v batteries should be 84v, not 85v. Should I leave the setting as is, on 85v, or it would be safer to reduce it by 1v to 84v? Thank you
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    48v Battery with 60v e-motor.

    Hello there! I have 48v40Ah battery and Votol EM50s controller. Recently I have got a new e-motor, but apparently it is labeled as 60v1500w. Would it still be possible to use with my 48v40Ah battery? If it is possible, what kind of downsides I may experience? Thank you everyone for your kind...
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    Choosing rear shock absorbers for e-moped/e-scooter

    Hello everyone, I need a little advice regarding rear suspension length selection for my e-scooter (Niu U1). E-scooter net weight: 56 kg E-scooter wheel size: 16X3.0 My weight: 80 kg (sometimes I ride with my wife, who is about 45 kg) Front shock absorber length (I have changed original fork...
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    Xiaoniu U1 Pro Magnetic motor indetification.

    Hello, I'm seeking for help in identification of magnetic motor specs for Xiaoniu U1 Pro. It is Bosh engine with serial number: RBNGFBH185130053 There is another data: TWICF120°eM （not sure what it means either) Any help would be much appreciated.
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    VOTOL EM-30S/Xiaoniu U1 Pro E-Scooter optimal controller settings/battery issue

    Hello everyone, I have Xiaoniu U1 Pro e-scooter and I have replaced original controller with VOTOL EM-30S. Currently my hardware set up as follows: Engine: 800W Battery: 48V40.3AH (54.6V max. charging voltage, 39V min. charge voltage, 45 A max. discharging current, 12 A max. charging...
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