JK BMS LCD Display Monitor Illustration and BMS Overheads

Highlights:
• BMS Standby (off) Overhead 0.01mA
• BMS On Overhead 2mA
• BMS and LCD On Overhead 205mA
• BMS must be turned On to activate the integrated Bluetooth (App)
• The round silver switch is used to turn on/off the battery (BMS)
• Programming and control setting must be done in the APP
• The LCD only displays and does not control the BMS
• The App shows all three temperature sensors, one for MOSFET and two for battery cells
• The LCD shows the MOSFET and the higher of the two cells temperatures only
• However low temperature charging protection is controlled by the lower of the two cells sensor
• The balancing function in this setup has been programmed for top balance, likely during charging only

[@craigturner3237]

I can't work out the best way to mount it to a panel

[@carlos_sacalul]

Hi,verry nice setup. Can i use in the same time lcd screen and bluetooth app on smartphone? Olso if i have jk bms with heater port and my system is 24v do i need use 24v heater,any 24v heater or just those silicone plate heaters? For what is rs485 can port,i have that litlle black rs485 can module,how can i use it,maybe to communicate with my hybrid inverter,or how? Hope to answer my questions. I'm now in this lifepo4 setup.Thanks in advance.

[@parkhopper3627]

Yes with smart phone. You should use 24V heater or use two 12V heaters connected in series. I have not explore the RS485 CAN module yet.

[@michaelhaltherman2863]

Did you take any photos of the install inside the battery boxes

[@parkhopper3627]

Yes in this group "facebook.com/groups/1314409799369442", please join.

[@michaelhaltherman2863]

Thank you I will. You have have done a great job with your mods . Have a great holiday

[@thomaschambilil8478]

is this touch display always on or only in discharge time?

[@parkhopper3627]

Yes touch screen but just for the three tabs. The screen is always on but you can add a switch to the +12V wire for screen on/off control.

[@Rocky-52]

Hi. I have the same 4.3" display monitor. I don't need to have the monitor on all the time and need to know which wire to isolate with a switch to turn off the monitor only. I think the "RED + plus" and "YELLOW - neg" is the power supply to the monitor only, therefore, placing a switch on one of these wires should work. Is that correct ?

[@parkhopper3627]

I believe so. Did you try?

[@Rocky-52]

@@parkhopper3627 I've just installed a simple latching on/off switch on the 'Red' 12v power lead, and 'Yes' it turns off the monitor without affecting the operation of the BMS

[@parkhopper3627]

@@Rocky-52 Thank you for confirming.