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home > ABYSS® | 36V On-Board Alternator Charger | Model AB-36V-DC | 10A Smart Charging | IP67 Waterproof | For Boat Engine Alternator > ABYSS® | 36V On-Board Alternator Charger | Model AB-36V-DC | 10A Smart Charging | IP67 Waterproof | For Boat Engine Alternator
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ABYSS® | 36V On-Board Alternator Charger | Model AB-36V-DC | 10A Smart Charging | IP67 Waterproof | For Boat Engine AlternatorProduct Description ABYSS 36V On Board Alternator Charger Model AB 36V DC 10A Smart Charging IP67 Waterproof For Boat Engine Alternator DESCRIPTION Meet the ABYSS 36V On Board Alternator Charger, the intelligent marine grade power solution that redefines what your engine can do. This compact, high efficiency charger seamlessly connects to your boat's alternator system, turning travel time into charge time so your 36V trolling motor battery stays
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Product Description

ABYSS® | 36V On-Board Alternator Charger | Model AB-36V-DC | 10A Smart Charging | IP67 Waterproof | For Boat Engine Alternator

DESCRIPTION

Meet the ABYSS® 36V On-Board Alternator Charger, the intelligent marine-grade power solution that redefines what your engine can do. This compact, high-efficiency charger seamlessly connects to your boat's alternator system, turning travel time into charge time so your 36V trolling motor battery stays topped off while you’re underway.

Instead of waiting to recharge at the dock, this on-demand charging system safely diverts excess alternator current to your auxiliary battery without compromising your cranking battery. It's designed with advanced protection circuitry and engineered for marine conditions so you stay powered up, protected, and in control.

Whether you're a tournament angler or a weekend explorer, this rugged and reliable unit ensures your trolling motor battery is always ready to perform, even after a full day on the water. Less downtime. More runtime. Maximum confidence.

Key Features

  • Smart Alternator-Powered Charging: Leverages your outboard’s alternator to actively charge 36V lithium trolling motor batteries while underway.
  • 10A Intelligent Output: Delivers precise charging voltage only what the battery needs to preserve lifespan and avoid overcharging.
  • Cranking Battery Protection: Maintains a safe 13.3V floor for your starter battery, ensuring your boat starts every time.
  • Compact Marine Design: Built with a small footprint (6"x5"x2") and marine-grade sealing for easy onboard installation.
  • IP67 Waterproof Rating: Fully sealed with epoxy resin to withstand water, salt, vibration, and harsh marine environments.
  • Plug-and-Play Simplicity: Compatible with 36V LiFePO₄ batteries and designed for easy connection to your alternator circuit.
  • Ignition Safe & ABYC Compliant: Meets marine electrical standards for safety and compliance.
  • LED Status Indicators: Provides real-time feedback on charge state and system status at a glance.
  • Ideal for Trolling Motors: Perfect upgrade for anglers using 36V setups from brands like Minn Kota®, Lowrance®, and Garmin®.
  • Engineered for Efficiency: Built to reduce generator wear and optimize alternator power redistribution without draining your system.

Detailed Specifications

Specification Details
Model AB-36V-DC
Brand ABYSS®
Charger Type 36V On-Board Alternator-Powered Charger
Input Source 12V Alternator via Engine Output
Output Voltage 43.8V ±0.2V
Output Current 10A Smart-Regulated
Battery Compatibility 36V LiFePO₄ (Lithium Iron Phosphate)
Starter Battery Protection Cranking Battery Protected at ≥13.3V
Waterproof Rating IP67 – Fully Sealed with Epoxy Resin
Dimensions (L × W × H) 6” × 5” × 2” (150 × 130 × 48 mm)
Weight ~3.1 lbs (1.4 kg)
Cooling System Passive Aluminum Plate Cooling
Protection Features Overcurrent, Overtemp, Reverse Polarity, Overcharge, Short Circuit
Operating Temperature -10°C to 40°C (14°F to 104°F)
Installation Marine-Rated, Surface Mount
Compliance ABYC Compliant, Ignition Protected

 

Multi-Bank 12V/24V/36V Marine & RV Chargers

Specification AB‑CRG‑12V24V‑3B AB‑CRG‑12V36V‑3B
Input Voltage 12 V alternator 12 V alternator
Output Configuration 2×12 V + 1×24 V 2×12 V + 1×36 V
Max Current 10 A per bank 10 A per bank
Battery Chemistries LiFePO₄, AGM, Wet‑Cell LiFePO₄, AGM, Wet‑Cell
Mode Selector Mode Buttons Mode Buttons
Dimensions (L×W×H) 11.9 × 9.6 × 3.8 in (304×245×99 mm) 14.2 × 9.6 × 3.8 in (361×245×99 mm)
Weight ~16.5 lbs (7.5 kg) ~19 lbs (8.6 kg)
IP Rating IP67 (epoxy sealed) IP67
Operating Temp –10°C to 40°C –10°C to 40°C

 

Specification AB‑CRG‑12V‑4B AB‑CRG‑12V/36V‑4B
Input Voltage 12 V alternator 12 V alternator
Output Configuration 4×12 V outputs 3×12 V + 1×36 V
Max Current 10 A per bank 10 A per bank
Battery Chemistries LiFePO₄, AGM, Wet‑Cell LiFePO₄, AGM, Wet‑Cell
Mode Selector Mode Buttons Mode Buttons
Dimensions (L×W×H) 11.9 × 9.6 × 3.8 in (304×245×99 mm) 16.6 × 9.6 × 3.8 in (423×245×99 mm)
Weight ~17 lbs (7.7 kg) ~26.8 lbs (12.1 kg)
IP Rating IP67 IP67
Operating Temp –10°C to 40°C –10°C to 40°C

 

Specification AB‑36V‑DC AB‑DC‑SD
Input Voltage 36 V DC input 30–90 V DC input
Output Configuration 1×12 V DC output 1×12 V DC output
Max Current 50 A 50 A
Battery Chemistries 12 V LiFePO₄ 12 V LiFePO₄ / AGM
Mode Selector Fixed Output Fixed Output
Dimensions (L×W×H) 6 × 5 × 2 in (150×130×48 mm) 6 × 5 × 2 in (150×130×48 mm)
Weight ~3.1 lbs (1.4 kg) ~3.1 lbs (1.4 kg)
IP Rating IP67 IP67
Operating Temp –10°C to 40°C –10°C to 40°C

 

Specification AB‑CRG‑36V10A AB‑CRG‑36V20A
Input Voltage 36 V DC input 36 V DC input
Output Configuration 1×36 V output 1×36 V output
Max Current 10 A 20 A
Battery Chemistries 36 V LiFePO₄ 36 V LiFePO₄
Mode Selector Single Bank Mode Single Bank Mode
Dimensions (L×W×H) 7.5 × 5 × 2.75 in (190×127×70 mm) 10.5 × 6 × 3 in (267×152×76 mm)
Weight ~3.5 lbs (1.6 kg) ~7.1 lbs (3.2 kg)
IP Rating IP67 IP67
Operating Temp –10°C to 40°C –10°C to 40°C

 

Specification AB‑CRG‑24V10A AB‑CRG‑24V20A
Input Voltage 24 V DC input 24 V DC input
Output Configuration 1×24 V output 1×24 V output
Max Current 10 A 20 A
Battery Chemistries 24 V LiFePO₄ 24 V LiFePO₄
Mode Selector Single Bank Mode Single Bank Mode
Dimensions (L×W×H) 7.5 × 5 × 2.5 in (190×127×63 mm) 7.75 × 5 × 3 in (197×127×76 mm)
Weight ~3.3 lbs (1.5 kg) ~3.3 lbs (1.5 kg)
IP Rating IP67 IP67
Operating Temp –10°C to 40°C –10°C to 40°C

 

Specification AB‑24V‑DC
Input Voltage 24 V alternator input
Output Configuration Smart 24 V regulator charge
Max Current Dynamic Smart Regulated
Battery Chemistries LiFePO₄, AGM, Wet‑Cell
Mode Selector Mode Button
Dimensions (L×W×H) 4.75 × 3.25 × 1.25 in (121×82×32 mm)
Weight ~0.95 lbs (0.43 kg)
IP Rating IP67
Operating Temp –10°C to 40°C

 

Manuals & Documents

ABYSS BATTERY® USER MANUAL

LITHIUM CHARGER USER MANUAL

DC-DC CHARGER USER MANUAL

REEL BATTERY USER MANUAL

BLUETOOTH® APP QUICK GUIDE

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ABYSS® | 36V On-Board Alternator Charger | Model AB-36V-DC | 10A Smart Charging | IP67 Waterproof | For Boat Engine Alternator

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