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 Setting up the battery 

 

Description of parameters(continuation) 

 

Parameter 

Description 

Cell overvoltage 

Voltage above which at least one parallel is exceeded for a time determined 
by the “Cell overvoltage delay” parameter, charging is disabled until the 
voltage drops to the value 
[Cell overvoltage - Cell overvoltage hysteresis]. 

Cell overvoltage delay 

Time after which the overvoltage protection of the parallel is activated. 

Cell overvoltage hysteresis 

Hysteresis, which is responsible for how much the parallel voltage should fall 
after the overvoltage protection is activated, so that the charge is enabled. 

Cell undervoltage 

Voltage, at which the voltage of at least one parallel is dropped for a time 
determined by the “Cell undervoltage delay” parameter, the discharge is 
disabled until the voltage rises to [Cell underv Cell undervoltage 
hysteresis]. 

Cell undervoltage delay 

Time after which protection against undervoltage of the parallel is activated. 

Cell undervoltage hysteresis 

Hysteresis, which is responsible for how much the parallel voltage should 
increase after the protection against undervoltage is triggered, so that the 
discharge is enabled. 

Balancing mode 

Three balancing options: 
Always - always balance cells, except when their voltage is lower than the 
value defined by the “Lowest voltage to balance” parameter. 
Charge & Overvoltage - balance cells during charging or when exceeding the 
maximum voltage in at least one cell. 
Never - never balance cells. 

BMS shutdown undervoltage 

The voltage, when the voltage drops to at least one parallel for 30 seconds, 
the BMS turns off completely, stopping consuming battery current. This is 
necessary in case the scooter is left discharged for a long period so that 
BMS does not overdischarge the battery pack by its own current 
consumption. 

Lowest voltage to balance 

The minimum parallel voltage at which it will be balanced. 

Cells disbalance threshold 

How much should the parallel voltage exceed the voltage of the most 
discharged parallel in order for balancing to begin. 

Recuperation disable cell 
voltage 

If at least one parallel the voltage is higher than this value, a signal is sent to 
the controller to disable the recuperation. 

(continued on the next page)

 

 

 
 
 
 

 

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Содержание Mi Electric Scooter M365

Страница 1: ...c specifications 5 Pinout 6 Installation 7 Xiaomi M365 wiring diagram 7 Xiaomi M365PRO wiring diagram 8 Installation process video tutorials 9 Setting up the battery 10 Description of parameters 11 De...

Страница 2: ...ngerous Improper use of this equipment may cause a fire WARNING Use of this equipment requires at least basic knowledge in electronics and electrical engineering WARNING When installing this equipment...

Страница 3: ...all cells with more capacious ones It is also possible to use this BMS for any self assembled 10s battery pack A battery equipped with a repair BMS is recognized by the Xiaomi Mijia M365 M365PRO elect...

Страница 4: ...nsors is displayed in the smartphone application If the sensors detect an excess of the permissible temperature the BMS temporarily disables charging and discharging the battery Thermal fuse Irreversi...

Страница 5: ...s Supported battery types Li ion Li pol Supported battery configurations 10s only Maximum battery capacity mA h 32000 Maximum continuous discharge current A 30 Maximum continuous charge current A 2 Ef...

Страница 6: ...itive lead Connects to the positive lead of the battery pack Balancing cable Connects to each parallel of the battery pack Charging connector Connects to the charge port of the scooter Discharging con...

Страница 7: ...e positive lead of the battery pack 3 Connect the balancing wires in order starting with B0 and finishing with B10 4 Install temperature sensors and thermal fuse using a thermal compound or neutral se...

Страница 8: ...e BMS may irreparably fail with a loss of warranty 1 Connect the black power wire of the BMS and B0 balancing wire 2 Connect the balancing wires in order starting with B1 and finishing with B9 3 Conne...

Страница 9: ...Installation Installation process video tutorials Xiaomi M365 BMS replacement Xiaomi M365PRO BMS replacement 9...

Страница 10: ...the faulty original Xiaomi M365 board In the case of the PRO version of the scooter you must additionally configure the battery capacity And if you change cells to new ones or even assemble your own b...

Страница 11: ...parameter Charge overcurrent delay The time after which the protection against exceeding the charge current is activated Charge overcurrent cooldown The time during which charging will be disabled aft...

Страница 12: ...responsible for how much the parallel voltage should increase after the protection against undervoltage is triggered so that the discharge is enabled Balancing mode Three balancing options Always alwa...

Страница 13: ...charge will be disabled until the temperature of each temperature sensor falls below the Critical temperature Critical temperature hysteresis value Critical temperature delay Time after which the prot...

Страница 14: ...ay ms 1280 Discharge overcurrent cooldown s 10 Short circuit current A 111 Short circuit delay us 70 Short circuit cooldown s 10 Cell overvoltage mV 4200 Cell overvoltage delay s 4 Cell overvoltage hy...

Страница 15: ...he scooter is below 30 volts pay attention at the blinking LED it signals errors that disable the discharge of the battery a a short flash once per second means at least one of the parallels of the ba...

Страница 16: ...uire a warranty exchange At the same time if you are a skilled guy be free to order and install the BMS it s quality is proved by years and hundreds of installations I just protect myself from unquali...

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