HV BMS Manual :

TOPBMS 5S-256S Manual  -English Version -2026.08.08.pdf

Phone APP of HV BMS 5S-256S :

TOPBMS 5S-256S Phone APP.rar

After entering APP , please select "High Voltage " and "TOP BMS"  ; 

Note: Don 't change  Board Add !!

 PC Software of HV BMS 5S-256S  :

TOPBMS V5.40_EN.rar

How to add new slave bms to current bms system ?

Step 1 : Please  connect new slave bms to  the last slave bms of current bms system via the 2 cables can -h and can- l ; something like below :

Step 2: Change the total battery strings 

Change the total battery strings in the "battery Set" of PC software ; Please see below :

Change the total battery strings in the "Total Battery Num" of Phone APP ; Please see below :

Step 3: Change the total charging voltage

Change the total charging voltage at "总电压保护值” of phone app ;

Change the total charging voltage at "总电压保护恢复值” of phone app ;

Please see below :

Change the total charging voltage at "Voltage Protection” of PC software ;

Change the total charging voltage Recovery at "Voltage Recovery” of PC software;

Please see below :