Overview
The NOCO Genius GEN5X3 sets a new benchmark for onboard battery charging. Delivering 15 amps total (5A per bank) across three independent banks, this compact powerhouse is designed for 12-volt lead-acid and lithium-ion (LiFePO₄) batteries, including flooded, gel, AGM, and maintenance-free types.
Built 37% smaller and 43% more powerful than the previous GENM3, the GEN5X3 is engineered to excel in the harshest marine environments. Its IP68 waterproof rating, rugged construction, and anti-vibration mounting system ensure reliable performance even underwater.
Each bank features independent charging control with selectable modes (12V, AGM, Lithium, Repair), enabling simultaneous precision charging for different battery types and conditions. An integrated thermal sensor prevents overcharging in heat and undercharging in cold, while Force Mode revives batteries down to 0 volts, something conventional chargers can't do.
Whether it's boats, RVs, cars, or deep-cycle systems, the GEN5X3 delivers smarter charging, longer battery life, and enhanced performance.
Key Features
- Compact & Powerful: 37% smaller and 43% more powerful than the GENM3.
- 3-Bank Charging: Independently charge three 12V batteries at 5A per bank.
- Selectable Charging Modes: 12V, 12V AGM, 12V Lithium (LiFePO₄), and 12V Repair Mode for damaged batteries.
- Thermal Sensor Protection: Adjusts charging based on temperature to prevent over/undercharging.
- Force Mode Recovery: Manually charge deeply discharged batteries down to 0V.
- Rugged Marine Design: Fully sealed IP68-rated housing with anti-vibration mounting for harsh environments.
- Flexible Installation: Mount in any orientation, including upside down, for secure onboard placement.
- Precision Battery Tracking: Monitors battery health and adapts charging for optimized performance.
- Safety Certified: Meets UL1236, CEC, FCC, ISO 8846, and 33 CFR 183.410 standards.
Specifications
- Brand: NOCO
- Model: GEN5X3
- Output Voltage: 12 Volts
- Input Voltage: 100-240V AC, 50-60Hz
- Current Rating: 15 Amps total (5A per bank)
- Supported Batteries: Lead-Acid (Flooded, AGM, Gel), Lithium (LiFePO₄)
- Charging Modes: 12V, 12V AGM, 12V Lithium, 12V Repair
- Waterproof Rating: IP68
- Dimensions: 10.08" D × 8.86" W × 5.63" H
- Weight: 6.1 lbs
- Certifications: UL1236, CEC, FCC, ISO 8846, 33 CFR 183.410
- Warranty: 3-Year Limited
Ideal For
- Marine & Boat batteries (starter and deep-cycle)
- RVs and campers
- Automotive battery systems
- Lithium-ion (LiFePO₄) and AGM batteries
- Deep-cycle systems for trolling motors & accessories
- Commercial or fleet battery maintenance setups
What's in the Box
- NOCO GEN5X3 15A 3-Bank Smart Waterproof Onboard Charger
- (2) Black Truss-Head Mounting Screws
- 72-inch DC cables with 3/8-inch eyelets
- 72-inch AC cable (Type-B)
- User Guide
FAQs
Can I charge different battery types at the same time?
Yes, each bank operates independently, allowing you to charge different types or conditions of batteries simultaneously.
Is this suitable for marine use?
Absolutely. The IP68-rated waterproof design and anti-vibration mounting make it ideal for harsh marine conditions.
Does it work with lithium batteries?
Yes, it supports 12V lithium-ion (LiFePO₄) batteries in addition to lead-acid types.
Can this charger revive dead batteries?
Yes, with Force Mode, the GEN5X3 can charge batteries down to 0 volts, which standard chargers often can’t detect.
How many amps does each bank provide?
Each of the three banks provides 5A, for a total of 15A output.
Does it adjust for temperature automatically?
Yes, a built-in thermal sensor adjusts charging rates based on ambient temperature.
How easy is it to install?
Very easy, the redesigned mounting system allows secure installation in any orientation, even upside down.
What kind of warranty does it have?
It comes with a 3-year limited warranty, backed by NOCO engineering.
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