Sike Power Lithium LiFePO4 Batteries—A brand you can trust

What is a Marine Battery?

A marine battery is a type of deep cycle battery, they are specialized designed to power electrical systems on boats, yachts, fishing kayaks, and other watercraft. Deep cycle marine battery is mainly used to provide energy for trolling motors, fish finders, navigation systems, bilge pumps, and engine starting. Marine deep cycle battery is able to overcome harsh conditions like heavy vibration,high moisture, and saltwater exposure. There are two main types of marine battery: deep cycle for sustained power (e.g., running electronics) and starting for short cranking engines. Which type to choose depends on your application.

Why Choose Lithium Marine Batteries?

Lithium marine batteries, particularly LiFePO4 battert, are the top choice for marine applications due to their lightweight and longevity design, enabling better boat efficiency. They offer 90% even higher DOD (depth of discharge), providing up to 1200Wh from a 12V 100Ah lithium marine battery, ideal for trolling motors and fish finders. With 3000+ cycles, they last 10 years or more, reducing replacement costs. Maintenance-free and eco-friendly, lithium marine batteries deliver reliable power for boating adventures.

12V lithium marine deep cycle battery

Comparison of Deep Cycle Marine Battery Types

Marine batteries provide reliable power for boats, yachts, and fishing kayaks, running essential systems like trolling motors, fish finders, navigation equipment, and bilge pumps. Deep cycle marine batteries, such as LiFePO4 lithium or AGM, deliver sustained energy for long trips, while starter batteries ensure engine ignition. Their sealed, vibration-resistant designs withstand harsh saltwater environments, ensuring safety and durability. Choosing the right marine battery enhances boating efficiency and supports off-grid adventures.

Below is a comprehensive comparison of deep cycle marine batteries: Flooded Lead-Acid, AGM Lead-Acid, Gel Battery, and LiFePO4 Lithium Battery. The table assumes a 12V 100Ah battery for consistency, covering key factors for marine users.

Factor

Flooded Lead-Acid

AGM Lead-Acid

Gel Battery

LiFePO4 Lithium Battery

Initial Cost

$100–$150

$200–$300

$250–$350

$300–$500

Weight

~60 lbs

~55 lbs

~55 lbs

~25 lbs

Lifespan (Cycles)

300–500

500–800

800–1200

3000–5000

Lifespan (Years)

2–4 years

3–6 years

4–7 years

8–15 years

Depth of Discharge (DoD)

50%

50–80%

50–80%

90–95%

Usable Capacity (100Ah)

50Ah (600Wh)

50–80Ah (600–960Wh)

50–80Ah (600–960Wh)

90–95Ah (1080–11400Wh)

Charging Time

8–12 hours

6–10 hours

6–10 hours

2–3 hours

Efficiency

80–85%

85–90%

85–90%

95–98%

Maintenance

Regular (watering, equalization)

Low (sealed)

Low (sealed)

Maintenance-free

Vibration Resistance

Poor

Good

Good

Excellent

Water/Salt Resistance

Moderate (vented, corrosion risk)

High (sealed)

High (sealed)

Very High (sealed, corrosion-proof)

Temperature Tolerance

Poor (-20°F to 120°F)

Moderate (-4°F to 140°F)

Moderate (-4°F to 140°F)

Excellent (-4°F to 149°F)

Marine Applications

Basic boating, short trips

Moderate use, trolling motors

Fishing boats, extended trips

Heavy use, trolling motors, off-grid boating

Safety

Moderate (acid spill risk)

High (sealed)

High (sealed)

Very High (thermally stable)

Environmental Impact

High (lead, acid)

High (lead)

High (lead)

Low (recyclable, no toxic metals)

How to choose marine batteries?

Guide of Marine batteries

Why Choose Sike Power lithium marine battery?

Factory cheap price: enjoy factory cheap price from us and gain more benefits

Superior Quality: ONLY use TOP brand Grade A premium cells and BMS, self design robust mechanical design.

Customizable OEM/ODM Solutions: Tailor-made to fit your specific needs.

Massive Production Capacity: ship your order in a short time, accelerate goods sales

Ready to OEM branding your marine deep cycle battery?

At Sike, we’re committed to delivering best deep cycle marine batteries, our marine batteries are designed with ultra safety. Whether you’re looking to find a OEM lithium marine battery partner or ODM design cooperative partner, you are in the right place

Contact us today to discuss your marine battery needs and get a quote from us. Let us help you elevate your business.

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