AKG CU4000 Charging Unit

AKG CU4000 Charging Unit

The CU4000 is a dual-compartment charging station designed for professional wireless microphone and in-ear monitoring systems. Its compact footprint and intelligent charging electronics make it an essential accessory for users of the WMS4500 wireless system and IVM4500 IEM platform who need reliable, efficient battery management across multiple devices.

Charging Performance & Intelligence

Dual charging compartments allow simultaneous charging of two BP4000 battery packs or compatible transmitters and receivers. The built-in microprocessor monitors battery status in real time, calculates remaining battery life, and displays recovery time needed to return to full operational capacity—critical information for live sound and broadcast environments where downtime directly impacts performance.

Design & Durability

At just 20.5 oz. and measuring 3.6 x 6.8 x 3.3 inches, the CU4000 fits easily on any tech rack, tabletop, or road case. Its life-cycle management system supports up to 1000 charging cycles, significantly extending battery service life while reducing waste and replacement costs over the unit's operational lifetime.

Key Features

• Two simultaneous charging compartments
• 1.5 A charging current
• 1 hour typical charging time
• 12 VDC, 1.3 A operating voltage
• ~8 hour recovery cycle
• Built-in microprocessor battery status monitoring
• Remaining battery life calculation and display
• Up to 1000 charging cycle life-cycle management
• Compatible with HT4500, PT4500, SPR4500, and BP4000 devices
• Compact dimensions: 92 x 173 x 85 mm
• Weight: 580 g
• Smart current management prevents overcharging

The CU4000 combines fast charging cycles with intelligent battery management, making it the practical core of a cost-effective and environmentally responsible wireless audio workflow.