​Battery Chargers

An AC DC charger uses 240V mains power from a standard wall socket to charge your system, making it the preferred choice for preparing your rig at home or staying at a powered site. A DC DC charger takes power from your vehicle alternator or solar panels to recharge your auxiliary battery while you are driving or parked off grid.

DC DC units are a primary component of a vehicle setup because they manage the varied voltage from the engine to provide a complete charge. AC DC chargers are used for maintenance and recharges when shore power is available. You can browse our selection of DCDC chargers for your vehicle, or find high quality 12V batteries to store your power.

A smart battery charger uses an internal microprocessor to analyze the condition of your battery and adjust the charging voltage and current automatically. Unlike older style chargers that provide a constant high output, a smart unit identifies exactly what the battery needs at any specific moment.

This active management provides a significant benefit by preventing overcharging and heat damage, which helps extend the total service life of your gear. Most units cycle through stages such as bulk, absorption, and float to provide a complete and safe recharge. This approach helps maintain peak performance for your off grid system and helps you avoid the cost of premature battery replacements.

Yes, you must use a charger that features a dedicated lithium charging profile to safely manage a Lithium Iron Phosphate battery. These batteries require a specific constant current and constant voltage cycle that is different from traditional lead acid or AGM settings. Using a standard charger may result in an incomplete charge or could potentially trigger the internal battery management system to disconnect for safety. Standard chargers often include maintenance stages like desulfation which can be harmful to lithium cells.

Using a compatible unit protects the internal electronics and extends the service life of your gear. Browse our selection of Lithium Batteries to find a storage source, or explore our range of DCDC Chargers for your vehicle build.

Select a charger with an output amperage between 10 and 30 percent of your total battery capacity. This range provides an efficient recharge while managing the heat and stress on the internal cells. For a standard 100Ah battery, a 20A or 30A charger is a common choice that offers a practical balance between speed and battery health. Lithium batteries generally handle higher currents better than lead acid or AGM options, allowing for much faster charging if your system supports it.

Using a charger with too low an amperage for a large battery bank will result in extremely long charge times and may prevent the battery from reaching a full state of charge within a practical window. Browse our range of AC DC chargers to find a unit for your home or workshop setup. You can also explore our high performance lithium batteries to see the recommended charge rates for your specific model.

Connect the positive red lead to the positive terminal first, then attach the negative black lead to the negative terminal. You should always have the charger switched off at the mains before making or breaking these connections to prevent sparks near the battery, which can be a safety risk in enclosed spaces.

Using ring terminals provides a much more secure and stable connection than temporary alligator clips, particularly for permanent installations. Making sure the terminals are clean and free from corrosion prevents high resistance and heat build up during the charging cycle. This practical step helps maintain a safe environment for your 12V system.

Yes, you can permanently mount most modern smart chargers inside your caravan or camper trailer fit out. This approach provides a professional and convenient way to manage your power levels whenever you connect to a 240V mains source. It removes the need for loose leads and protects the unit from physical damage during travel. You should select a location with clear airflow to manage the heat produced during the charging process.

Mounting the charger to a rigid surface with high quality fasteners helps it handle the vibration of corrugated tracks and off road touring. Browse our selection of AC DC chargers to find a mountable unit for your rig, or explore our 12V batteries to find a storage source for your build.

Standard smart chargers often fail to detect a battery that has dropped below a specific voltage, typically around 2V for lead acid or 0V for lithium. Most modern units require a minimum voltage signal before they begin the charging cycle to prevent safety issues. Some advanced models include a specialized supply mode or a force charge feature designed to provide a small current until the battery is recognized by the system.

If a lithium battery shows no voltage, the internal management hardware has likely triggered a safety disconnect to prevent damage. You must use a charger with a BMS wake up function to reset the circuit and resume the charging process. While some units can be recovered, a battery left flat for an extended period may have permanent cell damage and will not return to its full original capacity. Browse our selection of 12V deep cycle batteries to find a replacement if your storage is compromised, or see how the battery management system in our lithium batteries protects against deep discharge.