1. Introduction
This manual provides essential information for the safe and efficient operation of your VEVOR RV Power Converter, Model SBC-65A. This device converts standard 120V AC power into a stable 12V DC supply, suitable for charging RV batteries and powering 12V RV appliances. It supports both lead-acid and LiFePO4 battery types and features multi-stage smart charging for optimal battery health.
2. Safety Instructions
Read all instructions carefully before installation and operation. Failure to follow these instructions may result in electric shock, fire, or serious injury.
- Ensure the power converter is installed in a dry, well-ventilated area, away from flammable materials.
- Always disconnect AC power before making or breaking any electrical connections.
- Use appropriate wire gauges for all connections to prevent overheating.
- Do not operate the converter if it has been damaged or exposed to moisture.
- Ensure proper grounding to prevent electric shock.
- Only replace fuses with the same type and rating as specified.
- Keep children away from the device during operation.
- Wear appropriate personal protective equipment (PPE) when working with electrical systems and batteries.
3. Package Contents
Verify that all items are present in the package:
- 1 x RV Power Converter (SBC-65A)
- 4 x Fuses
- 1 x User Manual
4. Product Overview
The VEVOR SBC-65A RV Power Converter is designed for efficient and safe power management in your RV. It delivers up to 65A of clean, consistent current for various applications.
Figure 4.1: Front view of the VEVOR RV Power Converter 65 Amp.
Key Features:
- Wide Battery Compatibility: Supports both lead-acid and LiFePO4 batteries.
- Dedicated Charging Modes: Offers customized charging for lead-acid and LiFePO4, plus a fixed voltage mode (13.0V, 14.6V, 16.5V).
- 65 Amp High Performance: Provides up to 65A output, suitable for medium-capacity RV batteries (55Ah–70Ah).
- Multi-Stage Smart Charging: Extends battery life through intelligent charging stages.
- All-Around Security Protection: Includes short circuit, over temperature, overload, low voltage, overvoltage, and reverse polarity protection.
- Intelligent Cooling: Features an intelligent cooling fan that activates automatically when the temperature exceeds the rated limit, aided by a metal housing for heat dissipation.
Figure 4.2: The converter supports Lead-Acid and LiFePO4 batteries, and offers fixed voltage output modes.
Figure 4.3: The intelligent cooling fan ensures stable operation and prevents overheating.
5. Setup and Installation
Follow these steps for proper installation of your RV power converter.
5.1 Pre-Installation Checks
- Ensure the installation location is secure, dry, and has adequate ventilation.
- Verify that the AC input voltage matches the converter's requirements (120V AC).
- Confirm that the battery type and capacity are compatible with the 65 Amp output.
5.2 Mounting
Mount the converter securely to a stable surface using appropriate fasteners. Ensure there is sufficient clearance around the unit for airflow, especially near the cooling fan.
5.3 Wiring Connections
Refer to the diagram below for connection points. Always ensure AC power is disconnected before wiring.
Figure 5.1: Quick installation diagram showing key components and connection points.
- AC Input: Connect the 120V AC input cable to a suitable power source.
- DC Output Terminals (2): Connect the positive (+) and negative (-) terminals to your RV's 12V DC distribution panel or directly to the battery bank. Ensure correct polarity.
- Grounding: Connect the ground terminal (FG) to the RV chassis ground.
- Fuse (1): The unit is equipped with fuses for protection. Ensure they are correctly seated.
- 3-Mode Adjustable Selector Switch (4): Set this switch according to your battery type (Lead-Acid or LiFePO4) or to Fixed Output mode.
- Potentiometer (5): Used for fine-tuning voltage in Fixed Output mode, if necessary. Refer to operating instructions for details.
6. Operating Instructions
Once installed, operate the converter as follows:
6.1 Powering On/Off
- To power on, connect the AC input cable to a live 120V AC outlet. The unit will automatically begin operation based on the selected mode.
- To power off, disconnect the AC input cable from the power source.
6.2 Selecting Charging Mode
Use the 3-mode adjustable selector switch on the unit to choose the appropriate charging mode:
- Lead-Acid Mode: For charging traditional lead-acid batteries (e.g., flooded, AGM, gel). The converter will apply a multi-stage charging profile optimized for these battery types (typically 12V-14.6V).
- LiFePO4 Mode: For charging Lithium Iron Phosphate batteries. This mode provides a charging profile specifically designed for LiFePO4 batteries (typically 12V-14.6V).
- Fixed Voltage Output Mode: Provides a constant voltage output. Selectable options are 13.0V, 14.6V, and 16.5V. This mode is suitable for powering 12V DC devices directly or for specific battery charging requirements where a fixed voltage is preferred. Adjust the potentiometer (if available and necessary) for fine-tuning the voltage within this mode.
Figure 6.1: Illustration of the multi-stage charging process (Bulk, Normal, Trickle charge).
6.3 Multi-Stage Charging Explained
The multi-stage charging process optimizes battery charging and extends battery lifespan:
- Bulk Mode: Rapidly charges the battery by delivering maximum current until the voltage reaches a set level.
- Absorption Mode: Maintains a constant voltage while the current gradually decreases, preventing overcharging and battery damage.
- Float Mode: Once the battery is fully charged, the converter switches to a lower, constant voltage to maintain the battery at optimal charge without overcharging.
- Storage Mode: Minimizes self-discharge and extends battery lifespan during periods of inactivity.
7. Maintenance
Regular maintenance ensures the longevity and safe operation of your power converter.
- Cleaning: Periodically clean the exterior of the unit with a dry cloth. Ensure ventilation openings are free from dust and debris. Do not use liquid cleaners.
- Connection Inspection: Regularly check all electrical connections for tightness and signs of corrosion. Tighten any loose connections.
- Fuse Replacement: If a fuse blows, disconnect AC power, identify the blown fuse, and replace it with a new fuse of the exact same type and rating. The unit comes with spare fuses.
Figure 7.1: The converter is equipped with extra fuses for easy replacement.
8. Troubleshooting
If you encounter issues with your VEVOR RV Power Converter, refer to the following common problems and solutions:
| Problem | Possible Cause | Solution |
|---|---|---|
| No power output | No AC input; Blown fuse; Loose connections | Check AC power source; Replace blown fuses; Inspect and tighten all connections. |
| Battery not charging | Incorrect battery mode selected; Faulty battery; Loose DC connections | Verify battery type switch setting; Test battery condition; Check and secure DC connections. |
| Overheating | Blocked ventilation; Overload; High ambient temperature | Ensure clear airflow around the unit; Reduce load; Operate in a cooler environment. |
| Protection circuit activated | Short circuit; Overload; Over/under voltage; Reverse polarity | Identify and correct the fault (e.g., short circuit, overload); Verify correct wiring polarity. |
If the problem persists after attempting these solutions, contact VEVOR customer support for assistance.
9. Specifications
Technical specifications for the VEVOR RV Power Converter SBC-65A:
Figure 9.1: Detailed product dimensions and key specifications.
- Item Model Number: SBC-65A
- Input Voltage: AC 120V 60Hz
- Max Output Current: 65A
- Max Output Power: 942.5W ±5%
- Output Voltage (Lead Acid Battery): 12V–14.6V
- Output Voltage (Lithium Battery): 12V–14.6V
- Fixed Voltage Output Mode: 13.0V / 14.6V / 16.5V
- Ground Resistance: < 300 mΩ at 12V/25A
- Product Dimensions: 10.8 x 8.1 x 3.7 inches (274 x 207 x 94 mm)
- Net Weight: 5.95 lbs / 2.7 kg
- Material: Metal
- Accessories: 1 x User Manual, 4 x Fuses
10. Warranty and Support
VEVOR products are designed for durability and performance. For warranty information, please refer to the warranty card included with your product or visit the official VEVOR website.
For technical support, troubleshooting assistance, or to inquire about replacement parts, please contact VEVOR customer service. Have your model number (SBC-65A) and purchase date ready when contacting support.
