# Dyness Tower Pro BDU Battery Control Unit

- **Brand:** Dyness
- **SKU:** DYN-TOWERPRO-BDU
- **Price:** 483.12 EUR
- **Availability:** In stock
- **Categories:** Battery Accessories

The control unit that sits on top of a Dyness Tower Pro: it manages the HV9640 modules beneath it, talks to the inverter and holds the main switch. One per tower.

A Tower Pro needs exactly one BDU on top of its modules. It runs the battery management for the whole stack, connects the tower to the hybrid inverter over CAN, RS485 or RS232, and receives firmware updates remotely. Buy it with HV9640 modules to build a tower of your own size, or as a spare.

### Key Features

- One BDU per Tower Pro, for 2 to 6 HV9640 modules
- Battery management for the whole stack
- CAN, RS485 and RS232 to the inverter
- Remote OTA firmware updates
- Main switch and status display

## Specifications

| Spec | Value |
| --- | --- |
| Communication | CAN, RS485, RS232 |
| Compatibility | Dyness Tower Pro, HV9640 modules |