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Abyss

Abyss® | Lithium Marine House Battery | Model AB-12V350-BT | Voltage 12V 350Ah | Group 8D | Bluetooth BMS | Built-In Heating | IP65 Waterproof

Abyss® | Lithium Marine House Battery | Model AB-12V350-BT | Voltage 12V 350Ah | Group 8D | Bluetooth BMS | Built-In Heating | IP65 Waterproof

$3,499.99
$3,499.99
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  • High-capacity 350Ah lithium battery designed for off-grid living, energy storage, and starting large outboard or diesel motors.
  • Equipped with a robust 200A BMS for unmatched performance and reliability in marine applications.
  • Integrated Bluetooth® connectivity for real-time monitoring via Android/iOS apps.
  • Built-in heating system ensures reliable performance in extreme cold-weather conditions.
  • Certified to UL, IEC, and ISO standards, providing exceptional safety and durability in demanding environments.
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Product Description

Abyss® | Lithium Marine House Battery | Model AB-12V350-BT | Voltage 12V 350Ah | Group 8D | Bluetooth BMS | Built-In Heating | IP65 Waterproof

DESCRIPTION

When your marine or off-grid power demands are high, you need a battery that won’t flinch. The ABYSS® 12V 350Ah Lithium Marine House Battery is a true powerhouse combining high-performance deep cycle endurance with engine-cranking capability in one intelligent, ultra-efficient solution.

Crafted with a robust 200A internal BMS, Bluetooth® connectivity, and built-in cold weather heating, this Group 8D lithium battery is designed to seamlessly handle high-load devices like Seakeeper stabilizers, chill plates, air conditioning units, electric ovens, and outboard or diesel engine starts.

Built using UL-certified Grade-A LiFePO4 cylindrical cells, it delivers over 3000 charge cycles at 100% depth of discharge, with twice the runtime and less than 70% of the weight of traditional AGM batteries. From marine house banks to off-grid power systems, the ABYSS® 12V 350Ah battery provides zero-maintenance, all-season performance onboard or off-grid.

Key Features

  • Dual-Purpose Marine Battery (Starting + Deep Cycle)Handles high-current engine cranking and continuous power draw from house loads, Seakeeper systems, AC, chillers, and more.
  • Massive 350Ah Capacity @ 12.8VExtended runtime for longer voyages and power-hungry setups perfect for liveaboards, RVs, and solar storage.
  • Bluetooth® Monitoring via Mobile AppReal-time visibility into charge state, cycles, temperature, and performance from your iOS or Android device.
  • Built-in Heating for Cold Weather OperationIntegrated smart heating draws power from the charger no extra accessories needed. Reliable charging even in sub-freezing temps.
  • 200A Integrated BMS with 800A Peak DischargeSafely supports high surge loads like A/C compressors, microwaves, and large inverters.
  • Lightweight Group 8D Design (Only 75 lbs)Easier to install, reduces boat weight, and offers more usable capacity than lead-acid alternatives.
  • Certified Safe for Marine UseUL1642, IEC62619, UN38.3, CE, ABYC®, and TÜV Rheinland safety tested. Ideal for Mercury Marine outboards and diesel systems.
  • Maintenance-Free & Long-LastingZero upkeep. Over 3000 cycles at 100% DOD and 6000 at 80% 10x the lifespan of lead-acid.

Detailed Specifications

Specification Details
Model Number AB-12V350-BT
Battery Chemistry Lithium Iron Phosphate (LiFePO₄)
Nominal Voltage 12.8V
Capacity (Ah) 350Ah
Battery Group Size Group 8D
Bluetooth Monitoring Yes (iOS & Android Compatible)
Dimensions (L×W×H) 20.47” x 10.59” x 8.66” (521×267×220mm)
Weight 75 lbs (34 kg)
Standard Charge Current 70A
Fast Charge Current 175A
Max Continuous Discharge 200A
Peak Discharge (300ms) 800A
Discharge Cut-off Voltage 10V
Charge Voltage 14.4V ± 0.2V
Cycle Life 3000 @ 100% DOD / 6000 @ 80% DOD
Self-Discharge Rate <3% per month
Operating Temp (Charging) 0°C to 55°C (32°F to 131°F)
Operating Temp (Discharging) -20°C to 60°C (-4°F to 140°F)
Storage Temperature Range -5°C to 45°C (23°F to 113°F)
Terminal Type M8
Enclosure / Case Material ABS (Black Plastic)
IP Rating IP65 – Water & Dust Resistant
Cell Format Cylindrical, Grade-A Cells with Cell Holders
Series Connection (Max) 4 Batteries
Parallel Connection (Max) 6 Batteries
Safety Certifications UL1642, IEC62133, IEC62619, UN38.3, CE, ROHS
Marine Compliance ABYC® Compliant, TÜV Rheinland Certified
Internal Heating System Yes – Integrated with Charger (No Blanket Required)
Push Button Reset/Wake Function Yes – Top Mounted
Outboard Compatibility Certified for Mercury Marine® Outboards

 

Manuals & Documents

ABYSS BATTERY® USER MANUAL

LITHIUM CHARGER USER MANUAL

DC-DC CHARGER USER MANUAL

MULTI BANK CHARGER USER MANUAL

REEL BATTERY USER MANUAL

BLUETOOTH® APP QUICK GUIDE

General Warranty Info:

  • Ripping It Outdoors works closely with our manufacturers to supply and support your products warranty needs as best as possible!
  • The majority of products come with a manufacturer represented warranty against manufacturing defects for at least a 12 month period after the date of sale.
  • Expendable components and "wear parts" including but not limited to blades, knives, teeth, oil, chain sprockets, skid shoes, knife mounting discs, and similar components are usually excluded from manufacturer warranties.
  • Please reach out to us for any specific warranty information neededabout products and parts you can’t find!

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