1. Introduction
The ATEM POWER 12V DC to DC Battery Charger with Solar MPPT is an advanced multi-stage battery charger designed to efficiently charge your auxiliary battery from either your vehicle's alternator or a solar panel. Featuring MPPT (Maximum Power Point Tracking) technology for solar charging and multi-chemistry support, it ensures optimal charging for various battery types, extending battery life and enhancing performance. This manual provides essential information for safe installation, operation, and maintenance of your charger.
Video: ATEM POWER DC to DC Charger Product Overview
2. Safety Information
Please read all safety instructions carefully before installing or operating the charger. Failure to do so may result in injury or damage to the product.
- Over and Under Voltage Protection: The charger is equipped with an automatic shutdown feature to prevent damage to the battery if an over-voltage problem is detected.
- Reverse Connection Protection: The charger will detect and indicate a reversed connection on the input and output terminals, preventing damage to the internal circuitry of the unit.
- Spark-Free Protection: The charger will not begin charging unless the load is securely connected, preventing output leads from sparking due to accidental short circuits.
- Over Temperature Protection: The charger automatically adjusts its output based on battery temperature, preventing overcharge and overheating in small batteries and hotter climates.
- Ensure all connections are secure and properly insulated to prevent short circuits.
- Do not expose the charger to excessive moisture or extreme temperatures outside its operational range.
3. Product Features
- Built-in MPPT Regulator: Utilizes MPPT Solar regulator technology to maximize power generated from solar panels.
- Multi-Chemistry Support: Supports various battery types including Lead Acid, AGM/Gel, Calcium, and LiFePO4 batteries. Features periodic equalization to remove acid stratification from calcium batteries.
- Dual Input Design: Designed to efficiently draw power from both a solar panel and your vehicle's alternator (via the start battery) to charge your auxiliary battery.
- Switchmode Technology: Features the latest synchronous switching technology, achieving over 94% efficiency at typical full load conditions.
- Durable Construction: Sealed to IP54 rating, making it dust and shock proof, ideal for under-bonnet installation.
- Anderson Style Plugs: Equipped with three Anderson style plugs for solar input, DC input, and output connections, simplifying installation.
Image: Key features of the ATEM POWER DC to DC Charger, including solar charging, multi-chemistry support, Anderson plugs, and switchmode technology.
4. Installation
Proper installation is crucial for the performance and safety of your charger. Refer to the diagrams below for wiring instructions.
4.1 Wiring Connections
The charger comes with pre-wired Anderson style plugs for easy connection. Identify each wire as follows:
- DC Input (+): Red wire for positive DC input from the vehicle's start battery.
- DC Input (-): Black wire for negative DC input from the vehicle's start battery.
- Solar Input (+): Blue wire for positive solar panel input.
- Solar Input (-): Yellow wire for negative solar panel input.
- Output (-): Grey wire for negative output to the auxiliary battery.
- Output (+): Black wire for positive output to the auxiliary battery.
- ACC Ignition Line (Optional): Thin blue wire for ignition sensing, ensuring the charger only operates when the vehicle is running.
Image: Detailed view of the charger's wiring with labeled inputs and outputs for easy installation.
4.2 General Installation Diagram
The following diagram illustrates a typical installation setup for charging a 12V house battery bank from both a vehicle battery and an MPPT solar panel.
Image: Wiring diagram showing connections between the 12V Start/Vehicle Battery, MPPT Solar Panel Input, ACC Ignition Wire, 12V House Battery Bank, and the charger. Fuses/Breakers are optional but recommended.
4.3 Vehicle-Specific Installation Examples
The charger is suitable for various vehicle types. Below are examples for caravan and 4WD installations.
Image: Diagrams illustrating how to install the charger in a caravan (combining solar and vehicle power) and a 4WD (in-vehicle or under-bonnet installation).
5. Operating Instructions
The charger features an intuitive LED display for monitoring charge status and selecting battery profiles.
5.1 Charger Display Overview
The LED indicator shows the real-time stage of charging and the selected charge profile. A memory function is integrated for convenience.
Image: Front panel of the charger showing LED indicators for 'CHARGE STATUS' (Power On, Charging, Fully Charged, Solar Charging) and 'CHARGE PROFILE' (Lead Acid, AGM/Gel, Calcium, LiFePO4), along with 'REVERSE CHARGE' and 'SELECT' buttons.
5.2 Selecting Charge Profile
To select the appropriate charge profile for your auxiliary battery:
- Ensure the charger is powered on.
- Press the 'SELECT' button repeatedly until the LED corresponding to your battery type (Lead Acid, AGM/Gel, Calcium, or LiFePO4) illuminates.
- The charger will remember your selection for future use.
5.3 Multi-Stage Charging Process
The charger employs an advanced 4-stage charging process to ensure a safe and complete charge, optimizing battery health and longevity.
Image: Graph illustrating the multi-stage charging process, showing voltage and current changes over time through Soft Start, Peak Amps, and Minimal Ampere stages.
6. Applications
The ATEM POWER DC to DC Battery Charger is versatile and ideal for a wide range of applications requiring reliable auxiliary battery charging.
- 4WDs
- Caravans
- RVs (Recreational Vehicles)
- Trucks
- Campers
- Trailers
- Campervans
- Commercial Vehicles
- Boats
Image: Examples of vehicles and setups where the ATEM POWER DC to DC Charger can be used, including 4WDs, caravans, and RVs.
7. Specifications
Detailed technical specifications for the ATEM POWER DC to DC Battery Charger models.
| Feature | AP25DC | AP40DC | AP60DC |
|---|---|---|---|
| Product Dimensions | 189*148*48mm | 228*157*66mm | |
| Product Weight | 1.1kg | 2KG | |
| DC Input Voltage Range | 11~24V | 11~24V | |
| Solar Input Voltage Range | 9V~30V | 12.7V~30V | |
| Max. Input Current | 28A | 45A | 33A (SLOW MODE), 66A (FAST MODE) |
| Output Voltage | 0~15.4V | 0~15.4V | |
| Max. Output Power | 385W | 616W | 462W (SLOW MODE), 924W (FAST MODE) |
| Rated Output Current | 25A | 40A | 30A (SLOW MODE), 60A (FAST MODE) |
| Standby Current | <10mA | <10mA | |
| Charging Profile | 4 Stages | ||
| Battery Compatibility | Lead Acid, AGM, Calcium, LiFePO4 | ||
| IP Rating | IP-54 | IP-54 | |
| Operational Temperature | -20℃~45℃ | -20℃~45℃ | |
| Storage Temperature | -40℃~60℃ | -40℃~60℃ | |
| Humidity | 0%~90% | 0%~90% | |
| Brand Name | ATEM POWER | ||
| Certification | CE, FCC | ||
| Warranty | 1 Year | ||
Image: Diagram showing the product dimensions (length, width, height) for the charger unit.
8. Troubleshooting
If you encounter issues with your ATEM POWER DC to DC Battery Charger, refer to the following common troubleshooting steps:
- Charger Not Powering On: Check all input connections from both the vehicle battery and solar panel. Ensure fuses/breakers are intact and properly rated. Verify the ACC ignition wire (if used) is receiving power when the vehicle is on.
- No Charging Indication: Confirm the correct battery type is selected on the charger display. Check for reverse polarity connections on both input and output terminals (the 'REVERSE CHARGE' LED should indicate this). Ensure the auxiliary battery is securely connected.
- Reduced Output/Overheating: Ensure the charger is installed in a location with adequate ventilation. Check for any obstructions around the cooling fins. The charger may reduce output to prevent overheating in high ambient temperatures.
- Over-Voltage Shutdown: If the charger shuts down due to over-voltage, disconnect the input sources and check the voltage of your vehicle's alternator and solar panel output. Reconnect once voltage is within the specified range.
9. Maintenance
Regular maintenance helps ensure the longevity and optimal performance of your charger.
- Keep Clean: Periodically clean the exterior of the charger with a dry cloth. Ensure cooling fins are free from dust and debris.
- Check Connections: Regularly inspect all wiring connections for tightness and corrosion. Loose or corroded connections can lead to poor performance or safety hazards.
- Environmental Protection: While the charger is IP54 rated, avoid prolonged exposure to harsh environmental conditions if possible.
10. Warranty and Support
The ATEM POWER DC to DC Battery Charger comes with a 1-year warranty from the date of purchase, covering manufacturing defects.
For technical support, warranty claims, or any other inquiries, please contact our customer service:
- WhatsApp: +86 19310173053
- Email: congandy02@163.com
