Multi-Battery Monitor(BLE) is a vehicle battery management software which is compatible with last generation product BM2. It can support 4 different devices connection at one time conveniently manage multi 12V vehicle battery. Besides it can work on 24V 48V and solar battery. Data stored permantly and can be exported or shared by email. User can receive notification when get close to device. What's more it has trip record and vehicle expense management function.