Applicable to various lithium battery is suitable for large single-cell battery packs, cylindrical cell battery packs, and soft-pack cell battery packs to meet a variety of power and energy storage scenarios. Built-in Bluetooth + smart APP to view/set battery parameters Check battery information such as power level, voltage, current, power, charge and discharge status, and alarms in real time, and set battery parameters according to actual needs. Supports mainstream electric vehicle communication protocols such as for and for . Through the APP/PC host computer docking protocol, the instrument can display normally. The meter's power level, charging status, vehicle speed and other information can all be displayed normally.The gear shifts normally, with no fault code. Hign-concerned Chemical:None Usage Scenario:Power Balance Function:Passive Balanced Handware or Smart:SMART Type:LIFEPO4 Battery (The product printed words depending on the batch, but this does not affect use) Specification:30A Color:As Shown Material:Metal Package Contents: 1 * Smart Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.