RO66 48/115

S34455-T6

Micropower RO66 Pb 48V/115A is a 6.6 kW industrial onboard charger designed for low-voltage lead-acid battery systems, including flooded, GEL, and AGM.

Built on Micropower’s proven Robust industrial charging platform, it delivers 96% efficiency, enabling reliable daily operation while minimizing energy losses.

The IP66-rated enclosure ensures protection against dust, water ingress, vibration, and mechanical stress, making it suitable for harsh OEM environments and mobile machinery applications.
Output Voltage
48 V
Output Current
115 A
Number of phases
3
Rated Voltage range
380-480 V
Shipping Weight
9.2 kg
Ingress protection
IP66
Certifications
UL
Current at nominal voltage
10.5 A
Cabinet Type
-
Path 14
The Robust (RO) series is engineered for long service life, stable performance, and system-level reliability. Designed for OEM integration, the platform supports both lead-acid and lithium-ion batteries in material handling fleets, autonomous vehicles (AGV/AMR) and construction and off-road machinery.

With IP66 protection, Robust and RO chargers are suited for both onboard and stationary deployment, where environmental exposure and operational uptime are critical.
Industrial Applications
The RO66 Pb applies controlled multi-stage charging profiles optimized for Lead-acid battery systems such as deep-cycle flooded, GEL, and AGM batteries, ensuring stable charge acceptance while limiting overcharge conditions.

This makes it suitable for applications with predictable duty cycles and high utilization, including:
  • Material handling equipment (forklifts, warehouse vehicles)
  • AGV/AMR systems
  • Construction and off-highway machinery (AWPs, cranes, loaders, compactors, agriculture/forestry equipment)

Simple Installation
The RO66 is designed for OEM-level integration into electrical architecture, with standardized electrical interfaces and a compact mechanical footprint. This enables repeatable installation across machine platforms and reduces design complexity in wiring, mounting, and protection strategies. Defined connection points and robust interface design support consistent commissioning and minimize integration-related failure modes in production environments.

Air Cooling
The RO66 uses an optimized air-cooled thermal design, eliminating the need for liquid cooling systems and associated components such as pumps, hoses, and heat exchangers. This reduces system complexity and integration effort in mobile and vibration-exposed environments. Efficient heat dissipation at up to 96% efficiency ensures stable operation under high load conditions without thermal derating in typical industrial duty cycles.

Compact Design and CO₂ Impact
The RO66 combines high power output with a compact mechanical footprint (~1.4 L/kW), enabling flexible placement in space-constrained machine architectures without redesigning battery enclosures or structural components. This supports efficient use of material and platform standardization across machine variants.

Robust Housing
The enclosure is rated IP66, providing protection against dust ingress, high-pressure water exposure, and contaminants such as oil and particles. The mechanical design is validated for mobile environments with continuous vibration and shock loading, typical in off-highway and material handling equipment.

P9

429 x 255 x 86 mm

P9

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