VolTrust Lithium Batteries for Marine, Trolling Motor & RV Power

Start with the required system voltage, then compare capacity, stored energy, continuous current, peak current, dimensions, weight and charger requirements. For RV use, calculate the daily energy needed by lights, pumps, refrigeration, electronics and inverter-powered appliances. For marine use, confirm the trolling motor voltage and maximum current draw.

Choose a 12.8V model for compatible 12V RV house systems, onboard electronics and other 12V deep-cycle applications. Choose a 38.4V model for a compatible 36V trolling motor. The battery voltage must match the connected equipment and charging system.

List each appliance's wattage and estimated daily operating time, then add the watt-hours together. Include DC loads and inverter losses, and leave a practical reserve for weather, longer stays and unexpected use. Higher-capacity batteries are generally better suited to refrigeration, inverters and extended off-grid camping.

Estimated runtime in hours is approximately usable amp-hours divided by average motor current in amps. Actual runtime changes with thrust level, boat weight, wind, current, weeds, propeller condition and other connected loads. Full-speed operation consumes substantially more energy than lower-speed positioning.

Do not use a deep-cycle battery for engine starting unless the exact product is specifically rated for starting service and provides the required CCA or MCA rating. The batteries in this collection should be selected for compatible trolling motors, RV house loads and onboard deep-cycle applications unless the product page states otherwise.

It may be possible when voltage, capacity and current ratings are suitable, but a trolling motor can create voltage drops and electrical noise that affect sonar or chartplotters. Separate batteries or independently fused circuits can provide cleaner power for sensitive electronics. Follow the equipment manufacturers' wiring requirements.

Only use it if it has a compatible LiFePO4 charging profile that matches the battery voltage and charging limits. Equalization, desulfation and temperature-compensation modes intended for lead-acid batteries should not be used. An approved LiFePO4 charger is the recommended choice.

Do not connect the battery to an unregulated alternator. Alternator charging normally requires a correctly sized DC-to-DC charger or another approved charging solution to regulate voltage and current while protecting the alternator and battery. Confirm the design with a qualified installer.

The 12.8V models in this collection support up to four batteries in series or parallel when installed according to the applicable manual. The 38.4V models may be connected in parallel but must not be connected in series. Use matching batteries with closely matched voltage and follow all cable, fuse and breaker requirements.

The models in this collection include low-temperature charging protection and automatic internal heating. During charging, heating activates below 41°F (5°C) and stops when cell temperature reaches 59°F (15°C). Charging is disabled below 23°F (-5°C) and resumes after the battery rises above 32°F (0°C).

The manuals describe these batteries as water resistant, not waterproof. Install the battery in a dry, secure location away from standing water, direct rain and spray. Do not immerse the battery or pressure-wash the case, terminals or connectors.

A protected marine installation may be used in a saltwater environment, but salt and moisture can corrode terminals and connections. Keep the battery dry, use suitable marine-grade cables and sealed lugs, protect exposed connections and inspect the installation regularly.

The battery management system helps protect against high voltage, low voltage, excessive current, short circuit and temperature-related conditions. The selected battery's continuous and peak discharge ratings must still meet the requirements of the trolling motor, inverter and other connected equipment.

The VolTrust app allows users to view battery information and monitor system status from a compatible mobile device within Bluetooth communication range. Available screens and functions may vary by product and app version.

Secure the battery against movement, use correctly sized cables, tighten terminals to the specified torque and install appropriate fuses or circuit breakers close to the battery. Verify polarity before connecting and keep conductive objects away from the terminals. Installation should follow the product manual and applicable electrical standards.

Charge the battery to at least 50%, disconnect charging and electrical loads, and store it in a dry location within the specified temperature range. Check the battery and recharge as required approximately every three months. Do not store it fully discharged.

For a boat, provide the trolling motor or equipment model, required voltage, maximum current, battery-compartment dimensions and charger details. For an RV, provide the DC system voltage, expected daily energy use, inverter rating, solar controller, converter or charger, alternator-charging setup and installation-space measurements.