BigBattery 12V SEAL- LiFePO4 - 228Ah - 3.0kWh - Marine Lithium Battery -
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BigBattery 12V SEAL- LiFePO4 - 228Ah - 3.0kWh - Marine Lithium Battery | 10-Year Warranty

SKU FSEAL-12030-G1
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12V SEAL- LiFePO4 - 228Ah - 3.0kWh + FREE Lifetime Customer Support!

BigBattery prides itself on having a lithium-ion solution for whatever you need to power, and that’s why we’re so proud to be able to offer you a safe, powerful 12V solution for your boats and other marine applications.

This heavy-duty marine lithium battery is equipped with 316-grade stainless steel, a watertight double seal – both rubber and foam – and an extendable LED voltmeter so you can install the display in your boat’s control panel. These additions come on top of our already lengthy list of incredible features such as our advanced BMS, brand new LFP cells, thermal management system, and 300A fuse. With 3kWh of watertight, non-corrosive power, you’ll be sailing and speeding across the water in no time!

And as always, it requires zero maintenance, it’s easily installed, it’s made right here in the US, and is guaranteed to be the lowest cost battery in its class available today.

Detailed Marine Lithium Battery Specs:

  • Chemistry:           LiFePO4 (New)
  • Configuration:     4S (Series)
  • Voltage:                12V
  • Ah Capacity:        228Ah
  • kWh Capacity:     3.018kWh
  • Wh Capacity:       3018Wh

Performance Specs:

  • Max Continuous Discharge Current:          175A
  • Max Continuous Power:                               2240W
  • Max Discharge Peak Current:                      350A (6 Seconds)
  • Voltage Range:                                               9.8 – 14.6V

Charging Specs:

  • Suggested Charge Voltage:     14.6V
  • Max Charge Current:                175A

Temperature Parameters:

  • Charge Temp Range (°C):                      0°C – 35°C
  • Discharge Temp Range (°C):               -30°C – 55°C
  • Optimal Discharge Temp. Range:       15°C – 35°C
  • Storage Temp:                                       -20°C –  35°C (Max 6 Months)

Marine Lithium Battery - Dimensions:

  • Weight:                52 (LBS)
  • Length:                 9.6 (in)
  • Width:                   7.6 (in)
  • Height:                 13.1 (in)

Safety Features:

  • Safety Fuse (300A)
  • BMS (Battery Management System)
  • Over Voltage, Under Voltage, Over-Current
  • Thermal Management System & Built-In Fire Suppressions System

Maximum Battery Connections:

  • Series:        (YES)       Cap x (4) 
  • Parallel:      (YES)       Cap x (8) 

Marine Lithium Battery Features:

  • LED Display
  • Compact Modular Design
  • High Temp Operating Range
  • Best Power Density/Pack Size
  • Best Aluminum Mosfet Design
  • 3000 A Short Circuit Protection
  • High Cold-Cranking Amps (400A)
  • 10-Year Warranty

What is the Shop Solar Kits returns policy?

Returns are free in the first 30 days with no restocking or processing fees, although the customer must pay for the return shipping costs. See our complete return policy on our Shipping, Deliver, and Returns page.

What’s covered by the Shop Solar Kits returns policy?

Our returns policy covers all purchases made through Shop Solar Kits. For warranty issues, as authorized distributors, we honor the full manufacturer warranty of ALL the brands on our website. See our complete returns and warranty policies on our Shipping, Deliver, and Returns page.

How long will it take to receive my Shop Solar Kits order?

All orders are processed within 72 hours and you can expect delivery within 5 to 10 business days. You will receive access to our customer portal after ordering, where it is easy to track all your shipments. See our Shipping, Delivery and Returns page for more details.

What are the financing and payment options at Shop Solar Kits?

We offer several ways to pay to make getting your solar kit simple:

  • Credit Card: if the purchase is greater than your card’s limit, you can split the cost onto multiple cards as well as Paypal, financing through Affirm, and ACH/bank transfer
  • You can arrange financing during the checkout process, see our Financing page for more details

How does the Shop Solar Kits Lifetime Support work?

Our legendary lifetime customer support has helped make us the #1 solar kit retailer. 

We have a dedicated team of solar professionals standing by to help you navigate the world of solar with ease. From selecting the perfect solar kit to installation and beyond, we provide support and expertise at every step of the journey.

If you need help with ordering, shipping, troubleshooting, expanding your system, warranty issues, or anything else you have questions about for as long as you own your Shop Solar Kits equipment, we’ve got you covered: we’re always only a phone call or email away.

Simplified Solar Solutions

Simplified Solar Solutions

Our carefully curated solar kits combine the best components to create an ideal solution for your individual power needs. So whether you need to get off the grid, to save on your electric bill, for emergency backup power, or to fuel your next adventure - we eliminate the need for a designer or custom solution, and pass those savings on to you without compromising on performance.

Best Components, Lowest Prices

Best Components, Lowest Prices

We cut out the bloat of traditional solar companies and pass those savings off to you. Plus, we provide free shipping on all solar kits and lifetime customer service on everything we sell.

Expert Guidance

Expert Guidance

Our team of solar professionals is here to help you navigate the world of solar with ease. From selecting the perfect solar kit to installation and beyond, we provide support and expertise at every step of the journey.

We’re people just like you

We’re people just like you

We’re not corporate and neither are our customers. We’re just a group of 50+ solar enthusiasts who are passionate about providing an honest, no-BS way for anyone, anywhere to improve their lives and the world around them with solar power.

Trusted Solar Authority

Trusted Solar Authority

With over 30,000 solar kits sold, 2,500+ positive reviews, and years of experience in the industry, we’re proud to say we’re America’s #1 solar kit retailer. So you can trust us to provide you with top-notch products and legendary customer service at every step of the way.