BMS can be customized to support CAN communication If you need CAN function , must contact us ~if you need GPS module , also contact us ~ Feature: 1. Active balance functionality, lose battery capacity no need to balance sales voltage difference, increase battery use efficiency for 95% 2. It has the protections of overcharging/overdischarging/overcurrent and short circuit, etc. 3. Single battery series voltage range is 1~5V, accuracy is 5mV 4. With coulomb meter function, the remaining power is very clear 5. BT communication function, battery status can be displayed on APP 6.RS486 and can be customized 7.JK BMS, they are smart therefore with bluetooth and are equipped with a built-in active balancer, this will allow you to always have balanced cells and battery with full capacity Specification: Wiring method: common port Monomer voltage range: 1V-5V Voltage acquisition accuracy: ± 5mV Battery cell overcharge protection voltage: 1.2V-4.35V (adjustable) Battery cell overcharge protection recovery voltage: 1.2V-4.35V (adjustable) Applicable battery string quantity: 8S-20S (adjustable) Battery cell over discharge protection voltage: 1.2V-4.35V (adjustable) Battery cell over-discharge protection recovery voltage: 1.2V-4.35V (adjustable) Temperature detection quantity: 3 pieces temperature: -20~70℃ Power requirements: 24V ~ 100V, can be powered by battery or external power supply Download Link - IOS: Search (Seeds of JIKONG Camera BMS) in APP Store Android download link:https://www.pgyer.com/Cfq3 Instructions:https://github.com/NEEY-electronic/JK/tree/JK-BMS BMS protocol to connect to other devices: https://github.com/syssi/esphome-jk-bms VenusOS Driver: https://github.com/Louisvdw/dbus-serialbattery Package includes: 1*JK smart bms (Built-in Bluetooth) 1*Cable 1*Temperature Sensor 1*Display (optional) 1*RS485 Module (optional) 1*4.3inch LCD display (optional)