RO66 – New Onboard Battery Charger for Industrial Electrification

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Industrial electrification is reshaping how construction equipment, material handling vehicles, and other heavy-duty machines are designed and operated. As battery systems increase in capacity and power demand, onboard battery chargers become a core part of the electrical architecture rather than a secondary component. OEMs require charging solutions that combine power density, efficiency, and robustness while supporting long-term platform strategies.

The RO66 onboard battery charger addresses these requirements by providing a compact, high efficiency charging solution designed for industrial low voltage battery systems used in demanding operating environments.
Product News Industrial Chargers
Efficient Onboard Charging for Industrial Machines
The RO66 onboard charger is developed for industrial applications where space, thermal management, and environmental exposure define system performance. By delivering high charging power with air cooling, the charger reduces system complexity and eliminates the need for liquid cooling circuits. This simplifies integration and supports reliability in construction equipment, material handling such as forklift trucks, and other heavy duty electric platforms.
The mechanical design supports onboard installation in constrained spaces while maintaining protection suitable for outdoor and industrial use. Compatibility with low voltage battery systems enables OEMs to apply the same onboard charger architecture across multiple machine platforms, supporting standardization and scalable electrification strategies.

Technical Overview and Key Specifications
The RO66 is a 3-phase, air cooled onboard battery charger designed for industrial battery charging applications. The electrical architecture supports high conversion efficiency and stable operation across a wide input voltage range. The design minimizes electrical losses and thermal stress, supporting predictable lifetime performance and reduced total cost of ownership in industrial electric machines.

Charging power and efficiency
  • Output power 6.6 kW
  • Efficiency 96%
  • Cooling concept: Air-cooled (no liquid required)

AC input voltage range
  • 3-phase 380-480 VAC

Supported battery voltages and battery chemistries
  • 48 V, 80V and 96 V
  • Lithium-ion and Lead-acid
  • Designed for low-voltage industrial battery systems

Mechanical dimensions, weight and protection class
  • Dimensions 429 x 255 86 mm
  • Ultra-thin design profile (83 mm class)
  • Weight excl. cables: 6 kg
  • Protection class IP66

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