1. Introduction
The Victron Energy Blue Smart IP65 12V 4A Battery Charger is a high-performance, waterproof smart charger designed for various applications including motorhomes, classic cars, boats, and motorcycles. It features a fanless design and is resistant to water, dust, and chemicals, certified to IP65 standards. This charger offers intelligent 7-stage charging, extending battery life and efficiently charging various battery types.
Control and monitoring are made simple via Bluetooth using the VictronConnect app for Android or iOS devices. This allows users to adjust charge profiles, track real-time status, and review usage history without direct interaction with the charger. The advanced 7-stage charging algorithm ensures rapid charging up to 80% capacity, then reduces speed for the final 20%, adapting to specific or custom battery profiles. It can also revive fully discharged batteries, even from 0 volts.
The Blue Smart Charger is compatible with all battery types and brands, offering 8 pre-set charge profiles for Lithium, Lead-Acid, AGM, Gel, or Flooded batteries, with options for custom profiles. Its low-power mode makes it suitable for a wider range of batteries. The worry-free storage mode maintains battery health by adjusting charge levels when the battery is at 100%, preventing overcharging common with trickle chargers.
Equipped with SafetyShield+ protection, the charger ensures reliability in all situations, providing IP65 resistance and comprehensive safety against overheating, short circuits, and reverse polarity.

2. Safety Instructions
Always prioritize safety when operating electrical equipment. This charger is designed with multiple safety features, but proper handling is crucial.
- IP65 Rating: The charger is resistant to water, dust, and chemicals. However, avoid submerging the unit or exposing it to extreme conditions beyond its rating.
- Overheating Protection: The charger includes internal protection against overheating. Ensure adequate ventilation around the unit during operation.
- Short-Circuit Protection: Built-in safeguards prevent damage from accidental short circuits.
- Reverse Polarity Protection: The charger is protected against incorrect battery terminal connections. Always ensure correct polarity (+ to + and - to -) before connecting.
- Do not attempt to open or modify the charger. Refer all servicing to qualified personnel.
- Keep out of reach of children.
- Ensure the charger is disconnected from the AC power outlet before making or breaking the battery connections.

3. Product Overview
3.1. Package Contents
The Victron Energy Blue Smart IP65 12V 4A Battery Charger package typically includes the following components:
- Victron Energy Blue Smart IP65 12V 4A Battery Charger unit
- AC Power cable with CEE 7/17 plug
- Battery clamps with 40cm (15.7") extension cable
- M8 eyelets with 40cm (15.7") extension cable
- Quick connector

3.2. Key Features
- High-performance, waterproof smart charger with 94% efficiency.
- IP65 certified: resistant to water, dust, and chemicals.
- Bluetooth connectivity for easy control and monitoring via VictronConnect app.
- Advanced 7-stage charging algorithm for optimal battery health and extended lifespan.
- Compatible with all battery types: Lithium, Lead-Acid, AGM, Gel, Flooded.
- 8 pre-set charge profiles and customizable options.
- Low-power mode for smaller batteries.
- Storage mode to maintain battery health during long periods of inactivity.
- SafetyShield+ protection: against overheating, short circuits, and reverse polarity.
4. Setup
4.1. Connecting the Charger
Follow these steps to safely connect your Blue Smart IP65 charger:
- Ensure Safety: Before connecting, ensure the charger is unplugged from the AC power outlet.
- Connect to Battery: Choose the appropriate battery connection method (clamps or M8 eyelets). Connect the red positive (+) cable to the positive battery terminal and the black negative (-) cable to the negative battery terminal. Ensure connections are secure.
- Connect to AC Power: Plug the AC power cable into a suitable 230V AC power outlet.
- The charger will automatically begin its charging cycle based on the detected battery type and charge profile.

5. Operating Instructions
5.1. 7-Stage Charging Process
The Blue Smart Charger utilizes an intelligent 7-stage charging algorithm to optimize battery performance and lifespan:
- Test/Charge: Checks battery condition and initiates charging if necessary.
- Bulk: Charges the battery at maximum current until voltage reaches the absorption level.
- Absorption: Charges at a constant voltage, gradually reducing current as the battery approaches full charge.
- Float: Maintains the battery at a constant voltage to compensate for self-discharge.
- Storage: Reduces voltage to minimize gassing and corrosion when the battery is fully charged and not in use for extended periods.
- Recondition: Applies a higher voltage to recondition deeply discharged or sulfated batteries (if selected).
- Update: Periodically refreshes the battery to prevent stratification and ensure readiness.

5.2. Bluetooth Control with VictronConnect App
The VictronConnect app allows you to monitor and control your charger remotely:
- Download the App: Download the VictronConnect app from your device's app store (available for Android and iOS).
- Enable Bluetooth: Ensure Bluetooth is enabled on your smartphone or tablet.
- Connect to Charger: Open the VictronConnect app. It will automatically scan for nearby Victron Energy devices. Select your Blue Smart Charger from the list.
- Monitor and Configure: Once connected, you can view real-time charging status, battery voltage, current, and historical data. You can also select or customize charge profiles.

5.3. Selecting Charge Profiles
The charger offers various pre-set charge profiles to suit different battery chemistries. You can select these via the VictronConnect app:
- Open the VictronConnect app and connect to your charger.
- Navigate to the settings or profile selection menu.
- Choose the profile that matches your battery type (e.g., Lithium, Lead-Acid, AGM, Gel, Flooded).
- You can also create a custom profile for specific requirements.
- The charger's LEDs will indicate the active charging mode.

5.4. Storage Mode
The storage mode is designed for maintaining batteries during long periods of inactivity, such as winter storage. When the battery is fully charged, the charger will reduce the float voltage to minimize gassing and corrosion, ensuring the battery remains healthy and ready for use when needed. This mode is automatically activated when the battery remains at 100% for 24 hours.
6. Maintenance
The Victron Energy Blue Smart IP65 charger is designed for minimal maintenance due to its robust and sealed construction. However, regular checks can ensure optimal performance and longevity:
- Cleaning: Periodically wipe the exterior of the charger with a damp cloth to remove dust and dirt. Do not use harsh chemicals or abrasive cleaners.
- Connection Checks: Regularly inspect the battery and AC power connections to ensure they are clean, tight, and free from corrosion.
- Cable Inspection: Check the power and battery cables for any signs of damage, fraying, or wear. Replace damaged cables immediately.
- Ventilation: Although fanless, ensure the charger is not covered and has adequate airflow to prevent heat buildup.
- Software Updates: Check the VictronConnect app periodically for any available firmware updates for your charger to ensure you have the latest features and improvements.
7. Troubleshooting
If you encounter issues with your Victron Energy Blue Smart IP65 charger, consider the following common troubleshooting steps:
- Charger Not Turning On:
- Check if the AC power cable is securely plugged into both the charger and the wall outlet.
- Verify that the AC outlet is live by testing it with another device.
- Ensure the battery connections are correct and secure (positive to positive, negative to negative).
- Battery Not Charging:
- Confirm that the battery voltage is within the charger's operating range.
- Check the battery connections for corrosion or looseness.
- Ensure the correct charge profile is selected for your battery type via the VictronConnect app.
- If the battery is deeply discharged (below 0V), the charger may take some time to initiate charging or may require a recondition cycle.
- Bluetooth Connectivity Issues:
- Make sure Bluetooth is enabled on your mobile device.
- Ensure your device is within range of the charger.
- Restart the VictronConnect app and try reconnecting.
- If issues persist, try restarting your mobile device or the charger (by unplugging and replugging AC power).
- Overheating Indication:
- If the charger indicates overheating, disconnect it from power and allow it to cool down.
- Ensure the charger is in a well-ventilated area and not covered.
If these steps do not resolve the issue, please contact Victron Energy customer support for further assistance.
8. Specifications
| Feature | Specification |
|---|---|
| Brand | Victron Energy |
| Model Number | NT-1306 (BPC120433064R) |
| ASIN | B07XQQ1XDF |
| Product Dimensions (L x W x H) | 18.2 x 8.1 x 4.5 cm (7.17 x 3.19 x 1.77 inches) |
| Product Weight | 900 g (1.98 lbs) |
| Input Voltage | 230V AC |
| Output Voltage | 12 Volts |
| Rated Current | 4 Amperes |
| IP Rating | IP65 (Water, Dust, Chemical Resistant) |
| Compatible Devices | Smartphone, Tablet (for app control) |
| Number of Ports | 2 (AC input, Battery output) |
| Color | Blue |
| Compliance | CE |
9. Warranty
The Victron Energy Blue Smart IP65 12V 4A Battery Charger comes with a 2-year manufacturer's warranty. This warranty covers defects in materials and workmanship under normal use. Please retain your proof of purchase for warranty claims. For detailed terms and conditions, refer to the official Victron Energy warranty policy or contact their support.
10. Support
For technical assistance, product inquiries, or warranty support, please visit the official Victron Energy website or contact their customer service department:
- Official Website: www.victronenergy.com
- VictronConnect App: For app-related support and updates.
- Refer to the contact section on the official website for regional support details.