WFCO | Main Board Assembly | Lithium Battery Auto-Detect | WF-8945-AD-MBA | 45 Amp

Upgrade your WFCO WF-8945 power center to handle lithium battery setups with the WFCO WF-8945-AD-MBA Main Board Assembly. This 45-amp replacement board features industry-first patent-pending Auto-Detect technology that automatically recognizes lithium-ion or lead-acid battery chemistries and adjusts charging profiles accordingly — and it installs in as little as 10 minutes with minimal rewiring.

Auto-Detect Technology — Industry First

The standout feature: WFCO's patent-pending Auto-Detect technology. The board automatically recognizes which battery chemistry it's working with and tailors the charging profile to match:

• Lead-acid: 13.2 – 14.4V DC range
• Lithium-ion: 13.2 – 14.6V DC range

No buttons, no switches, no jumpers, no manual adjustments — install it and let it figure out the right charging profile on its own. That's a meaningful safety upgrade: using the wrong charge profile on a lithium battery can shorten cell life or in some cases damage the cells outright. Auto-Detect eliminates that risk entirely.

Three-Stage Charging for Maximum Battery Life

The WF-8945-AD-MBA uses multi-stage charging with current monitoring in both lead-acid and lithium profiles — accurately charging your batteries through the full lifecycle while eliminating risks of over or undercharging:

• Bulk Mode (14.4V DC) — quick charging voltage for depleted batteries
• Absorption Mode (13.6V DC) — nominal voltage as charge approaches full
• Float Mode (13.2V DC) — trickle charge maintains full charge without overcharging

10-Minute Installation

The WF-8945-AD-MBA is a direct replacement for the original WF-8945 main board, designed for fast, hassle-free installation. The whole swap requires only two screws, three AC wires, and two DC wires — installation can take as little as 10 minutes with minimal rewiring.

45 Amps for Mid-Size RV Power Demands

With 45 amps of output current and 780W of total output power, the WF-8945-AD-MBA handles the converter demands of most mid-size RVs — running your 12V appliances and lighting while keeping your house batteries topped off.

Comprehensive Safety Features

The board includes multiple layers of protection for your electrical system:

• Over-current protection
• Over-temperature protection
• Over-voltage protection
• Reverse polarity detection (optional) with audible alarm — meets RVIA & NEC requirements, accepts hi-pot testing, with no additional wiring or hookup required
• Active cooling system
• FCC certified

Key Features

• 45-amp output replacement main board for WFCO WF-8945 power centers
• Patent-pending Auto-Detect technology — works with lithium or lead-acid
• Three-stage converter/charger (Bulk / Absorption / Float)
• 780W output power
• 10-minute installation — 2 screws, 3 AC wires, 2 DC wires
• Optional reverse polarity detection with audible alarm (meets RVIA & NEC)
• Comprehensive protections — over-current, over-temp, over-voltage
• Active cooling system
• FCC certified
• Backed by a 2-year WFCO manufacturer warranty

Specifications

• Brand: WFCO
• Part Number: WF-8945-AD-MBA
• Type: Main Board Assembly (Replacement for WF-8945 Power Centers)
• Battery Detection: Automatic (lithium or lead-acid)
• Converter Type: Three-stage converter/charger
• Output Current: 45A
• Output Power: 780W
• Input: 105–130 VAC, 60 Hz
• Output Voltage (Lead-Acid): 13.2 – 14.4V DC
• Output Voltage (Lithium-Ion): 13.2 – 14.6V DC (13.6 – 14.6 VDC)
• Bulk Mode: 14.4V DC (quick charging)
• Absorption Mode: 13.6V DC (nominal)
• Float Mode: 13.2V DC (trickle)
• Protections: Over-current, over-temperature, over-voltage, optional reverse polarity
• Cooling: Active
• Mounting Plate: Plastic (black, brown)
• Certifications: FCC
• Dimensions: 7-1/16" W x 3-7/8" H x 9-1/2" D
• Weight: 5 lbs
• Warranty: 2-year WFCO manufacturer warranty