Can I use a Deep Cycle Battery for LiveScope?

Garmin LiveScope technology has changed the way anglers fish by providing real-time sonar views, allowing fish and underwater features to be identified instantly with impressive detail.

LiveScope systems usually draw around 20–30 watts, which means the battery must supply stable power for long periods. This often leads to the question: can a deep cycle battery be used for LiveScope? In practice, the answer is yes. Deep cycle batteries — particularly lithium-based deep cycle models — are well suited to this application.

This guide explains why deep cycle batteries are suitable, compares the main battery types, and helps you choose the most appropriate LiveScope battery for reliable and productive fishing sessions.

What Is a Deep Cycle Battery and Why It Suits LiveScope

A deep cycle battery is designed to deliver a steady flow of energy over many hours, unlike starter batteries that release short bursts of power to start engines.

These batteries are built to be discharged deeply — often up to 80–100% — and recharged repeatedly without damage. This makes them ideal for powering equipment such as LiveScope sonar units, trolling motors, chartplotters and onboard electronics.

Standard formats like Group 24 are commonly used in marine setups, including LiveScope installations. Among the available options, lithium iron phosphate (LiFePO4) batteries stand out for their long service life, reduced weight and stable voltage output, all of which are important for sensitive electronics.

If you would like a more detailed overview, see: What are deep cycle batteries?

Can a Deep Cycle Battery Run LiveScope Effectively

Deep cycle batteries are well matched to Garmin LiveScope systems, as they provide the consistent power required for real-time sonar processing.

A stable voltage supply helps prevent issues such as screen flicker, signal interruptions or data loss, ensuring the sonar performs smoothly.

A high-quality lithium deep cycle trolling battery can support extended fishing trips, whether you are targeting predatory fish offshore or scanning unfamiliar waters. This dependability allows you to focus on fishing rather than monitoring battery levels.

Battery Types Compared for LiveScope Use

Selecting the correct battery chemistry has a direct impact on LiveScope performance. The most common choices are traditional lead-acid batteries and modern LiFePO4 lithium batteries. The differences are outlined below:

When compared directly, LiFePO4 batteries are often considered the most suitable lithium battery for LiveScope thanks to their efficiency, longer usable runtime and consistent power delivery. Although lead-acid batteries cost less initially, their weight, upkeep and shorter lifespan can limit their practicality for advanced sonar systems.

Advantages of Choosing a LiFePO4 Deep Cycle Battery for LiveScope

LiFePO4 marine trolling batteries are engineered to meet the demands of modern sonar equipment. Key benefits include:

• Consistent Voltage for Clear Sonar Images: Stable output helps avoid lag and display issues, delivering sharp real-time visuals.
• Reduced Weight: Up to 50–70% lighter than lead-acid alternatives, making handling easier for kayaks and compact boats.
• Extended Operating Time: Higher energy density supports longer sessions on the water.
• Fast Recharging: Shorter charging times reduce downtime between trips.
• Long Operational Life: With 2,000–5,000 cycles available, LiFePO4 batteries can last many years, lowering long-term replacement costs.

12V or 16V Batteries: Which Option Is Better for LiveScope

Most LiveScope systems, including models such as the LVS34, operate within a 10–32V range. This allows both 12V and 16V batteries to be used, subject to manufacturer guidelines.

• 12V Batteries: Widely compatible and cost-effective, suitable for recreational anglers. A 12V 30Ah lithium battery typically provides around 8–12 hours of use.
• 16V Batteries: Higher voltage can improve sonar sharpness and screen responsiveness, making them attractive for competitive or all-day fishing. A 16V 30Ah battery may deliver 10–12+ hours with enhanced image quality.

For users seeking the highest performance, a 16V setup can offer a noticeable improvement, particularly during intensive use.

Cost Comparison: Lithium vs Lead-Acid for LiveScope

Although LiFePO4 batteries have a higher purchase price, they often prove more economical over time. For example, a 50Ah LiFePO4 battery priced around €380–€420 can deliver thousands of cycles, whereas a lead-acid battery costing roughly €130 may need replacing several times within the same period. Over five years, lithium can reduce overall spending while also offering faster charging and less maintenance.

Safety Characteristics of Lithium Deep Cycle Batteries

LiFePO4 batteries are well suited to marine environments and include important safety features such as:

• Integrated Battery Management System (BMS): Provides cell balancing and protection against over-current, over-charging and overheating.
• High Thermal Stability: LiFePO4 chemistry is resistant to thermal runaway, increasing safety on board.
• Robust Construction: Many designs meet IP65 standards for moisture resistance and include low-temperature protection for cold-weather fishing.

These characteristics make LiFePO4 batteries a dependable option for anglers prioritising safety and reliability.

How to Select the Right Battery for LiveScope

When choosing a LiveScope battery, consider the following factors:

• Capacity (Ah): Estimate capacity using Ah = (LiveScope watts ÷ voltage) × operating hours. For example, 30W over 8 hours requires around 20–30Ah at 12V. A 50Ah battery is recommended if additional devices are used. The Vatrer online calculator tool can assist with accurate sizing.
• Physical Size and Weight: Compact lithium batteries suit smaller vessels and kayaks.
• Voltage Compatibility: Ensure the battery voltage matches LiveScope requirements.
• Charging Speed: Faster charging reduces waiting time between trips.
• Cold-Weather Capability: For winter or ice fishing, select models with low-temperature protection. Vatrer 12V deep cycle lithium batteries are available with low-temperature and self-heating features.
• Extra Functions: Bluetooth monitoring via the Vatrer app allows real-time battery status checks.

Battery Installation and Ongoing Care

Correct installation and routine care can improve reliability and extend battery life.

Installation:

1. Mount the battery securely in a waterproof case.
2. Use 10-gauge cabling and follow Garmin wiring recommendations.
3. If display issues occur, inspect connections and confirm voltage compatibility.

Maintenance:

1. Recharge the battery after each outing.
2. Store in a cool, dry location at partial charge when not in use.

Conclusion

Using a deep cycle battery is a practical and effective way to power Garmin LiveScope systems. LiFePO4 batteries, in particular, provide superior consistency, reduced weight and extended service life compared with lead-acid options. Whether fishing from a kayak, competing in events or operating in cold conditions, a lithium deep cycle marine battery delivers dependable performance.

Vatrer supplies stable, well-equipped battery solutions for anglers. Explore our range of deep cycle fishing lithium batteries to find a suitable power option for your LiveScope setup.