Ask Frowse

WF-9855 55 Amp RV Power Converter for Lead-Acid (WF-9855-MBA, WF-9855-AD, WF-9855-LIS, WF-9800)

The WF-9855 offers reliable performance and advanced safety features.

Frowse Rating8.9/10

Multiple options are available.

The WF-9855 is a robust 55 amp RV power converter designed for lead-acid batteries. It features a silent fan for reduced noise and multiple protective functions for enhanced safety. Ideal for replacing WF-9855 series converters, it’s compatible, reliable, and efficient.

  • Power: 950 Watts, 55 Amps output current
  • Input Voltage: 105-130VAC, 60Hz with three-stage charging
  • Protections: Overcharge, overvoltage, overcurrent, high temperature, and short circuit protection

As an Amazon Associate, Frowse may earn from qualifying purchases.

Frowse Rating 8.9/10

Best for: RV enthusiasts and professionals needing reliable power

Our Review

The 2026 Upgrade WF-9855 is a robust RV power converter, ideal for those relying on lead-acid batteries. With its compatibility across various WF models, including the WF-9855 series, it seamlessly replaces older units and assures reliable performance. This makes it perfect for installations where quiet operation is paramount, such as RVs or other mobile setups.

What we like

  • Compatible with various WF models
  • Three-stage charging for optimal battery health
  • Silent fan reduces operational noise by 30%
  • Comprehensive protective features for safe use
  • Backed by a 5-year warranty

Our verdict

The WF-9855 offers reliable performance and advanced safety features.

Product Details

Product Details

The WF-9855 is a 55 amp RV power converter designed specifically for lead-acid batteries. It is compatible with models including WF-9855, WF-9855-AD, WF-9855-LIS, and other WF-9800 series converters. With an input voltage range of 105-130VAC at 60Hz, this converter delivers an output voltage of 14.6VDC.

Key Features

  • Power and Output: Provides 950 Watts of power and a stable output current of 55 Amps.
  • Silent Operation: Equipped with an upgraded pure copper silent fan that reduces noise by 30% while providing substantial airflow.
  • Safety Protections: Features comprehensive protective functions including overcharge protection, overvoltage protection, overcurrent protection, high temperature protection, and short circuit protection.
ASIN:
B0CTG4VMNQ
Brand:
suplife

Ready to check the current Amazon listing?

View on Amazon