For avid RVers and Overlanders, maximizing energy efficiency while on the road is paramount. A key component in achieving this is a reliable and efficient charging system. Meet the 12v DC charger: your ultimate travel companion. By optimizing your battery charging capabilities while your vehicle is in motion, this unassuming device is a true off-grid game-changer.
Understanding the 12v DC Charger
As the name suggests, a 12v DC charger is a device that converts the 12-volt DC power from your vehicle's alternator into a suitable charging current for your batteries. This process, known as charging while driving, helps maintain battery health, extend battery life, and ensure ample power for your off-grid needs. A DC-to-DC mobile charger aids in on-the-go management with the added benefits of compact size and efficiency.
Different Types You Might Find
Not all 12v DC chargers are created equal. Understanding the different types available will help you choose the best option for your RV or Overland setup.
- Linear Chargers: These chargers are relatively simple and affordable but less efficient. They can generate heat, leading to energy loss.
- Switching Chargers: More efficient than linear chargers, switching chargers convert DC power into high-frequency AC power before rectifying it back to DC for charging. This process reduces heat loss and improves overall efficiency.
- Two-Stage CC/CV Chargers:
These chargers use a two-stage charging process involving Constant Current (CC) and Constant Voltage (CV) phases. During the CC stage, the charger delivers a steady current to the battery until it reaches a specific voltage. Then, in the CV stage, the voltage is held constant while the current gradually decreases as the battery reaches full charge. This method provides an efficient and controlled way to charge batteries, optimizing performance and extending battery lifespan. Two-stage CC/CV chargers are often preferred for their balance of performance, efficiency, and cost-effectiveness.
Always make sure you choose a charger that aligns with the type of batteries you have installed in your rig for efficient and safe charging.
Factors to Consider
Several factors should be considered when selecting a 12v DC charger for your RV or Overland rig:
Compatibility: Ensure the charger is compatible with your battery type (e.g., lithium-ion, lead-acid) for seamless integration and reliable performance.
Amperage: The charging current (amperage) determines how quickly your battery will charge. Choose a charger with sufficient amperage to meet your needs.
Safety Features: Look for chargers with built-in safety features like over-current, over-voltage, and short-circuit protection.
Size and Weight: Consider the size and weight of the charger, especially if you have limited space in your rig or if you prioritize portability.
Efficiency: Opt for a charger with high efficiency to minimize energy loss and maximize battery charging.
The Expion360 DC to DC Mobile Charger
With the above in mind, let’s look at Expion360’s 12v DC charger option in more detail. This cutting-edge charger is designed to rapidly charge Lithium Iron Phosphate (LiFePO4/LFP) chemistry deep cycle house batteries from your vehicle alternator through the chassis battery. Its unique 2-stage constant current (CC) constant voltage (CV) charge profile ensures that your batteries are charged quickly and safely at 14.6 V/25 A.
At just a fraction of the size of other chargers on the market, E360’s DC to DC mobile charger is compact, easy to install, and simple to use. Its compatibility with our best-in-class lithium batteries makes it an ideal choice for RVers, Overlanders, and van builders looking for the ultimate efficiency and reliability.
Notable features include:
- 25 Amp outlet
- IP68
- Potted circuitry
- Ignition control
- Compatible with all alternator types
Find the complete list of specs here.
Investing in Adventure
As you gear up for your next off-grid adventure, consider how efficient and reliable charging can impact your overall comfort and enjoyment. A 12v DC charger helps you optimize your on-the-road power, extend battery life, and enjoy greater peace of mind.
Where will your travels take you?
