ABYSS® | 4 Bank 12V On-Board Marine Battery Charger | Model AB-CRG-12V-4B | 40A Total Output | For LiFePO₄, AGM & Lead Acid Batteries
ABYSS® | 4 Bank 12V On-Board Marine Battery Charger | Model AB-CRG-12V-4B | 40A Total Output | For LiFePO₄, AGM & Lead Acid Batteries
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Product Description
ABYSS® | 4 Bank 12V On-Board Marine Battery Charger | Model AB-CRG-12V-4B | 40A Total Output | For LiFePO₄, AGM & Lead Acid Batteries
DESCRIPTION
Power up your marine adventures with the ABYSS® 4 Bank 12V On-Board Marine Battery Charger, an intelligent multi-bank charging solution designed for boaters who demand precision, safety, and durability.
Whether you’re running trolling motors, electronics, or livewell pumps, this rugged 4-bank 12V charger delivers a total of 40 amps (10A per bank) with adaptive charging modes for LiFePO₄ lithium, AGM, and lead-acid batteries. With intuitive LED indicators, pulse wake-up for low-voltage lithium batteries, and ABYC-compliant ignition protection, this is the onboard charging system trusted by pros and weekend warriors alike.
Encased in a fully sealed IP67 waterproof housing, the AB-CRG-12V-4B resists salt, splash, dust, and vibration making it ideal for tough marine conditions. With four independent charging banks and full safety circuitry, it's more than just a charger it's your boat’s power manager.
If you're upgrading your marine battery setup, this 12V 4-bank charger ensures every battery is fully charged, properly maintained, and ready to perform.
Key Features
- Four Independent 12V Charging Banks Power up to 4 batteries simultaneously with 10A per bank (40A total output).
- Battery Mode Selection Easily select 12V LiFePO₄, AGM, or lead-acid modes on each bank for custom charging.
- Marine-Grade IP67 Waterproof Fully sealed with epoxy resin to withstand harsh saltwater and wet environments.
- Pulse Wake-Up for Lithium Batteries Revives deeply discharged 12V LiFePO₄ batteries with one-button activation.
- LED Charging Indicators See battery status, type, and charge progress at a glance.
- ABYC Compliant & Ignition Protected Meets strict marine electrical safety standards for onboard installation.
- Smart Safety System Includes overcharge, reverse polarity, short-circuit, spark, and overtemp protection.
- Active Cooling System Built-in aluminum base plate and waterproof fan enhance heat dissipation.
- Auto Charge Monitoring Advanced microprocessor manages each bank independently for balanced performance.
- Rugged Design for Marine Use UV-, oil-, gas-, and vibration-resistant build for real-world boating conditions.
Detailed Specifications
| Specification | Details |
|---|---|
| Brand | ABYSS® |
| Model | AB-CRG-12V-4B |
| Charging Type | On-Board 4 Bank Smart Marine Charger |
| Battery Compatibility | 12V LiFePO₄, AGM, Lead-Acid |
| Total Output | 40 Amps (10A per bank × 4 banks) |
| Battery Type Selection | Each bank selectable: LiFePO₄, Wet, AGM |
| Activation Mode | Pulse Wake-Up for low-voltage lithium |
| Input Voltage Range | 120V – 240V AC |
| Input Frequency | 50Hz – 60Hz |
| Full Charge Voltage | 14.1–14.7V depending on battery type |
| LED Indicators | Power, Battery Type, Charging Status |
| Cooling Method | Aluminum base plate with sealed cooling fan |
| Operating Temp Range | -10°C to 40°C (14°F to 104°F) |
| Nominal Temp | 25°C (77°F) |
| Relative Humidity | 5% – 95% (non-condensing) |
| Ingress Protection | IP67 Waterproof (Epoxy-Sealed) |
| Safety Features | Overcharge, Overheat, Reverse Polarity, Short Circuit, Spark-Proof |
| Dimensions (L × W × H) | 11.9" × 9.6" × 3.8" (304mm × 245mm × 99mm) |
| Weight | 17 lbs (7.7 kg) |
| AC Cable Length | 6 ft (183 cm) |
| DC Cable Length | 6 ft (183 cm) per bank |
| Application | Boats, Marine Vessels, 12V Trolling Systems |
| Certifications | ABYC Compliant, Ignition Protected |
Multi-Bank 12V/24V/36V Marine & RV Chargers
3-Bank 12V/24V & 3-Bank 12V/36V Marine Chargers
| Specification | 3-Bank 12V/24V Marine Charger | 3-Bank 12V/36V Marine Charger |
|---|---|---|
| Model | AB-CRG-12V24V-3B | AB-CRG-12V36V-3B |
| Voltage | 12V/24V | 12V/36V |
| Output | 2x12V/10A + 24V/10A | 2x12V/10A + 36V/10A |
| Product Size | 11.9" x 9.6" x 3.8" | 14.2" x 9.6" x 3.8" |
| Weight | 16.5 lbs (7.5 kg) | 19 lbs (8.6 kg) |
| Lead Length | 6' (72 in.) | 6' (72 in.) |
| Charging Battery Type | 2 banks: 12V LiFePO4, AGM, Wet 3rd bank: 24V LiFePO4 |
2 banks: 12V LiFePO4, AGM, Wet 3rd bank: 36V LiFePO4 |
4-Bank 12V & 4-Bank 12V/36V Marine Chargers
| Specification | 4-Bank 12V Marine Charger | 4-Bank 12V/36V Marine Charger |
|---|---|---|
| Model | AB-CRG-12V-4B | AB-CRG-12V/36V-4B |
| Voltage | 12V | 12V/36V |
| Output | 4x12V/10A | 3x12V/10A + 36V/10A |
| Product Size | 11.9" x 9.6" x 3.8" | 16.6" x 9.6" x 3.8" |
| Weight | 17 lbs (7.7 kg) | 26.8 lbs (12.1 kg) |
| Lead Length | 6' (72 in.) | 6' (72 in.) |
| Charging Battery Type | Each bank: 12V LiFePO4, AGM, Wet | 3 banks: 12V LiFePO4, AGM, Wet 4th bank: 36V LiFePO4 |
36V Alternator & 12V 50A DC Converter
| Specification | 36V Alternator Charger | 30V–90V to 12V 50A Converter |
|---|---|---|
| Model | AB-36V-DC | AB-DC-SD |
| Voltage | 36V | 30V–90V |
| Output | 43.8V/10A | 12V/50A DC |
| Product Size | 6" x 5" x 2" | 6" x 5" x 2" |
| Weight | 3.1 lbs (1.4 kg) | 3.1 lbs (1.4 kg) |
| Lead Length | 7 in. | N/A |
| Charging Battery Type | 36V LiFePO4 | 12V LiFePO4 |
36V 10A & 36V 20A High-Precision Chargers
| Specification | 36V 10A High-Precision Charger | 36V 20A High-Precision Charger |
|---|---|---|
| Model | AB-CRG-36V10A | AB-CRG-36V20A |
| Voltage | 36V | 36V |
| Output | 36V/10A DC | 36V/20A |
| Product Size | 7.5" x 5" x 2.75" | 10.5" x 6" x 3" |
| Weight | 3.5 lbs (1.6 kg) | 7.1 lbs (3.2 kg) |
| Lead Length | 4' (48 in.) | 4' (48 in.) |
| Charging Battery Type | 36V LiFePO4 | 36V LiFePO4 |
24V 10A & 24V 20A High-Precision Chargers
| Specification | 24V 10A High-Precision Charger | 24V 20A High-Precision Charger |
|---|---|---|
| Model | AB-CRG-24V10A | AB-CRG-24V20A |
| Voltage | 24V | 24V |
| Output | 24V/10A | 24V/20A |
| Product Size | 7.5" x 5" x 2.5" | 7.75" x 5" x 3" |
| Weight | 3.3 lbs (1.5 kg) | 3.3 lbs (1.5 kg) |
| Lead Length | 3' (36 in.) | 3' (36 in.) |
| Charging Battery Type | 24V LiFePO4 | 24V LiFePO4 |
24V Alternator Charger
| Specification | 24V Alternator Charger |
|---|---|
| Model | AB-24V-DC |
| Voltage | 24V |
| Output | 24V |
| Product Size | 4.75" x 3.25" x 1.25" |
| Weight | 0.95 lbs (0.43 kg) |
| Lead Length | 7 in. (17.8 cm) |
| Charging Battery Type | 24V LiFePO4 |
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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