Introduction
The Leaptrend Altair Series 40A 12V DC-DC Battery Charger is designed to efficiently charge your auxiliary (house) batteries from your vehicle's starter battery. This charger ensures optimal power management and battery health for various applications including RVs, commercial vehicles, boats, and off-grid setups. It supports multiple battery types such as lead-acid, lithium, and lithium iron phosphate batteries.
Figure 0: Versatile Applications. This image demonstrates the wide range of applications for the Leaptrend Altair 40A DC-DC Battery Charger, including use in RVs, vans, boats, and other off-grid or mobile power systems.
Key features include:
- Multi-Battery Compatibility: Supports Flooded, STD, Gel, AGM, Sealed, Lithium-iron Phosphate, and Lithium-ion batteries.
- 3-Stage Charging: Utilizes Bulk, Absorption, and Float stages for optimal and automatic 100% charge.
- Intelligent Protection: Features Over-voltage, Over-temperature, and Reverse Polarity Protection.
- Starter Battery Protection: Prevents over-discharge of the starting battery by identifying when the generator is active.
- Robust Design: Compact and sturdy, suitable for various conditions, CE and UKCA certified.
Safety Information
Please read all safety instructions carefully before installing or operating the Leaptrend Altair 40A DC-DC Battery Charger. Failure to follow these instructions may result in electric shock, fire, or serious injury.
- Ensure proper ventilation during operation to prevent overheating.
- Do not expose the charger to water or excessive moisture unless specifically designed for such conditions.
- Verify correct polarity before connecting the charger to batteries to prevent damage.
- Keep flammable materials away from the charger during operation.
- Only use the charger with compatible battery types as specified in this manual.
- The charger includes built-in protections for over-voltage, over-temperature, and reverse polarity. However, always exercise caution during installation and use.
Product Features
Figure 1: Smart 3-Stage Charging and Product Dimensions. This image illustrates the charger's intelligent 3-stage charging process (Bulk, Boost, and Float) for optimal battery health. It also displays the physical dimensions of the charger: 10.35 inches in length, 7.40 inches in width, and 3.11 inches in height, with a weight of 4.6 lbs.
The Leaptrend Altair 40A DC-DC Battery Charger incorporates advanced features to ensure efficient and safe battery charging:
- Smart 3-Stage Charging: The charger automatically cycles through Bulk, Absorption, and Float stages to ensure a complete and safe charge, prolonging battery life.
- Wide Operating Temperature: Designed to operate effectively in temperatures ranging from -20°C to +80°C.
- Multi-Battery Type Compatibility: A rotary switch allows selection for various battery chemistries including LiFePO4, GEL, STD (Standard Lead-Acid), and AGM batteries.
Figure 2: Battery Type Selection. This image highlights the charger's versatility, showing its compatibility with various battery types including LiFePO4, GEL, STD (Standard Lead-Acid), Deep Cycle, and AGM batteries. A selector switch on the unit allows users to choose the appropriate charging profile.
- Comprehensive Safety Protections: Built-in mechanisms protect against over-temperature, reverse polarity, and over-voltage, ensuring safe operation for both the charger and connected batteries.
Figure 3: Integrated Safety Protections. This image visually represents the charger's safety features, including protection against over-temperature, reverse polarity, and over-voltage, crucial for reliable and secure operation.
Setup and Installation
The Leaptrend Altair 40A DC-DC Battery Charger is designed for straightforward installation in various vehicle types. Always ensure the vehicle's ignition is off and disconnect the main battery before beginning installation.
General Installation Guidelines:
- Mounting Location: Choose a dry, well-ventilated area away from direct heat sources and flammable materials. Ensure the mounting surface is sturdy enough to support the charger's weight.
- Wiring: Use appropriate gauge wiring for all connections to prevent voltage drop and ensure safe current flow. Refer to local electrical codes and vehicle manufacturer guidelines.
- Input Connection: Connect the charger's input to the vehicle's starter battery. The charger isolates the input from the output to prevent incorrect voltage transmission.
- Output Connection: Connect the charger's output to your auxiliary (house) battery bank.
- Grounding: Ensure proper grounding of the charger to the vehicle chassis.
Typical Installation Scenarios:
Figure 4: Travel Trailer Installation. This diagram illustrates how to install the DC-DC charger in a travel trailer setup. The charger connects to the main vehicle battery and then to the auxiliary battery within the trailer, often utilizing an Anderson style plug for easy connection and disconnection.
Figure 5: Commercial Vehicle Installation. This diagram shows a typical installation for a commercial vehicle. The charger is connected between the main vehicle battery and an auxiliary battery, both located within the same vehicle, providing a reliable charging solution for on-board power needs.
After all connections are made, double-check all wiring for correct polarity and secure connections before powering on the system.
Operating Instructions
The Leaptrend Altair 40A DC-DC Battery Charger operates automatically once properly installed and connected. Follow these steps for optimal performance:
- Battery Type Selection: Before initial use, set the rotary switch on the charger to match your auxiliary battery type (LiFePO4, GEL, STD, or AGM). Refer to your battery's specifications for the correct setting.
- Power On: Start your vehicle's engine. The charger will detect the alternator's voltage and begin the charging process for your auxiliary battery.
- 3-Stage Charging Cycle:
- Bulk Stage: Charges the battery at its maximum current until it reaches approximately 80% capacity.
- Absorption Stage: Charges at a constant voltage, gradually reducing current until the battery is fully charged.
- Float Stage: Maintains the battery at a safe voltage, compensating for self-discharge and ensuring it remains at 100% charge without overcharging.
- Monitoring: The charger may have indicator lights to show the current charging status (e.g., charging, fully charged).
- Engine Off: When the vehicle engine is turned off, the charger will cease charging and isolate the auxiliary battery from the starter battery, preventing discharge of the starter battery.
The charger is designed to operate autonomously, providing a reliable charge to your auxiliary batteries whenever the vehicle's engine is running.
Maintenance
The Leaptrend Altair 40A DC-DC Battery Charger is designed for minimal maintenance. However, regular checks can ensure its longevity and optimal performance:
- Visual Inspection: Periodically inspect the charger and all connected wiring for any signs of damage, corrosion, or loose connections.
- Cleanliness: Keep the charger free from dust and debris. Use a dry, soft cloth to wipe down the exterior. Do not use harsh chemicals or abrasive cleaners.
- Ventilation: Ensure that the ventilation openings on the charger are not obstructed to allow for proper heat dissipation.
- Connection Integrity: Check that all battery terminals and cable connections are secure and free from corrosion.
If any issues are observed, consult the troubleshooting section or contact customer support before attempting repairs.
Troubleshooting
If you encounter problems with your Leaptrend Altair 40A DC-DC Battery Charger, refer to the following common issues and solutions:
| Problem | Possible Cause | Solution |
|---|---|---|
| Charger not operating / No indicator lights | No input power from starter battery; Loose connections; Blown fuse. | Ensure vehicle engine is running; Check all wiring connections; Inspect and replace any blown fuses in the circuit. |
| Auxiliary battery not charging | Incorrect battery type selected; Faulty battery; Loose output connection. | Verify the battery type switch setting matches your battery; Test the auxiliary battery independently; Check output wiring. |
| Charger overheating | Poor ventilation; Overload condition. | Ensure adequate airflow around the charger; Reduce load if possible; Check for obstructions. |
| Error indicator light on | Over-voltage, over-temperature, or reverse polarity detected. | Review safety information; Disconnect power, inspect connections, and allow unit to cool before reconnecting. |
If the problem persists after attempting these solutions, please contact Leaptrend customer support.
Specifications
| Model Number | altair40a |
| Brand | Leaptrend |
| System Voltage | 12V DC |
| Rated Charge Current | 40A |
| Rated Max Power | 250W |
| Idle Power Consumption | 0.4A |
| Input Battery Voltage Range | 10V-16V DC |
| Operating Temperature | -20°C to +50°C |
| Temperature Compensation | -3mV/C° /2V |
| Product Dimensions (L x W x H) | 21.3 x 18.8 x 7.9 cm (8.39 x 7.40 x 3.11 inches) |
| Weight | 2.55 kg (4.6 lbs) |
| Certifications | CE, UKCA |
Warranty Information
Leaptrend products are manufactured to high-quality standards and are backed by a manufacturer's warranty. Please refer to the warranty card included with your product or visit the official Leaptrend website for detailed warranty terms and conditions. The warranty typically covers defects in materials and workmanship under normal use.
Please retain your proof of purchase for any warranty claims.
Customer Support
For technical assistance, troubleshooting, or warranty inquiries regarding your Leaptrend Altair 40A DC-DC Battery Charger, please contact Leaptrend customer support through the following channels:
- Website: Visit the official Leaptrend website for FAQs, support resources, and contact forms.
- Email: Refer to your product packaging or the Leaptrend website for customer service email addresses.
- Phone: Check the Leaptrend website for available customer service phone numbers in your region.
When contacting support, please have your product model number (altair40a) and proof of purchase readily available.