WhisperPower’s BeltPower range is designed to operate in combination with the main engine of a vehicle or vessel.

We offer two variations:
- AC BeltPower alternator systems with a power output of 3.5 kW and 5 kW (230 VAC- 50 Hz)
- DC BeltPower alternators, available in 12 V or 24 VDC output

WhisperPower’s BeltPower range is designed to operate in combination with the main engine of a vehicle or vessel.

We offer two variations:
- BeltPower AC-230 VAC 50 Hz output
- BeltPower DC-12 or 24 VDC output

230 VAC BeltPower system
This system consists of a compact alternator, which should be added to the existing engine, which is driven by a V-belt or a rope, an inverter power box, providing 230 V/ 50 Hz sine wave power when the engine is running and various components like pulley, cable etc. 
The installation brackets are NOT provided by WhisperPower, but can be obtained from recommended specialists.

Optional: WPC inverter/ battery charger plus batteries, enabling the system to supply 230 V/ 50 Hz when the engine is not running. We offer systems of 3.5 kVA and 5 kVA output power rating. We recommend our customers to consult one of our Technical Service or Sales Partners for system advice and installation.

12 / 24 VDC BeltPower System
This system consists of a heavy duty alternator, delivering maximal amperage at low RPM, our Multi Stage ACR voltage regulator and a cable harness to connect the alternator and ACR regulator. The brackets are not provided by WhisperPower and can be supplied by recommended specialists.

Optional: WP-BI battery isolators to charge two or three separate banks. 

We recommend DC BeltPower is added to the existing engine configuration, leaving the existing DC alternators in tact.

The DC BeltPower ensures a fast and complete charge: as a result of the low rpm/ high amperage, in combination with the multi stage ACR regulator, AGM, GEL or wet batteries will be charged fast and completely.

ACR Multi stage regulators can also be purchased without an alternator. These regulators will fit Bosch alternators.