

WF-8955-AD-MBA 55 Amp RV Power Center Main Board Assembly
55A STABLE POWER | 1-YEAR WARRANTY | PLUG-AND-PLAYWFCO 8900 Series - Ideal for RVs, Travel Trailers & Mid-Size Battery Banks
Key Features
55A Continuous DC Output
Delivers 55 Amps stable DC power (780W) to run standard RV appliances, lighting and charge mid-size battery banks reliably.
4-Stage Smart Charging
Auto-detects LiFePO4, AGM, flooded & gel batteries, optimizing charging cycles to extend battery service life.
Certified Safety Protection
UL 458/RVIA compliant with overcurrent, reverse polarity, over-temperature and surge protection for safe operation.
High Energy Efficiency
≥85% power conversion efficiency reduces energy waste and heat, suitable for on-grid and occasional off-grid use.
Drop-In Installation
Direct replacement for WF-8955 power centers, 15-minute install with no wiring modifications required.
Universal AC Input
90-130V AC (50/60Hz) input compatible with global power sources, perfect for international RV travel.
Technical Specifications
| Parameter | Specification |
|---|---|
| Output Current | 55 Amps continuous (12V DC) |
| Input Voltage/Frequency | 90-130V AC, 50/60Hz (universal input) |
| Output Power | 780 Watts continuous | 1000 Watts peak |
| Output Voltage Range | Lithium:14.2-14.6V DC | Lead-Acid:13.6-14.4V DC (adjustable) |
| Power Conversion Efficiency | ≥85% |
| Dimensions (W×H×D) | 7.25" × 4.125" × 2.5" |
| Net Weight | 5.6 lbs (2.54 kg) |
| Reverse Protection Fuse | 35/35 Adc |
| Converter Type | 4-stage smart charger (bulk/absorption/float/maintenance) |
| Warranty | 1 Years Limited Manufacturer's Warranty |
Compatibility & Replacement
- Direct replacement for WF-8955 RV power center main boards
- Full compatibility with all WFCO 8900 series power centers
- Backward compatible with WF-8945/8935 power centers (power upgrade)
- Replaces Parallax 7155/7145 main boards (adapter included)
- Cross-compatible with WFCO 9800 series low-power models
Warranty Information
1-Year Limited Warranty
Important Installation Notes
- Disconnect AC power and battery terminals before installation to prevent electrical shocks or short circuits.
- Recommended for lithium battery banks 150Ah+ or RVs with standard-wattage appliances (refrigerator, lighting, small pumps).
- Use only 4 AWG or larger DC wiring for 55A continuous operation to ensure stable performance and avoid overheating.
- Do not modify the board's circuitry; unauthorized modifications will void the 3-year limited warranty.
- Store the board in a dry, cool environment before installation to avoid moisture damage to internal components.
We only ship to U.S. 48 states physical addresses only. Please make sure that your PayPal account is verified and address confirmed. There will be No exceptions made to ship to P. O. box addresses.
For all California Buyers will be required to pay Sales Tax of 9.5%.
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We will processed your order and provide tracking number within 48 hours (except weekends and holidays) after payment "is received correctly. Usual transit time is 2-8 days, depends on destination.
If you have any problem about your payment or shipment, please contact us to solve your issue immediately.
If buyer receives any damaged, defective, or incorrect item, we will issued a return label.
If any package needs to be returned, please contact customer service to receive an RMA form.
For refund or exchange, package will need to be returned within 30 days.
Any item that are return after 60 days, our Return Department reserves the right to reject the return/exchange item.
If any replacement is out of stock or on back order, our Return Department will issue a refund to customer.
Any item that is approved for return or exchange MUST be in brand new condition.
Item must never have been installed and needs to be kept in the original packaging.
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Office Hour: Monday - Friday, 8:30am to 5:00pm PST
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We are closed during weekend, no emails will be replied during weekend and holidays.
On Apr 2, 2026 at 02:56:36 PDT, seller added the following information:





