Genius Onboard Waterproof Marine Battery Charger 30Amp, 12Volt, 3Bank (GENPRO10X3)

Elevate your marine power management with the NOCO GENPRO10X3 — a high-performance, waterproof onboard charger built to tackle the toughest conditions while maintaining peak battery health.

Key Features & Benefits:

• Delivers 30 Amps total (10 Amps per bank) across three independent 12 V banks, ideal for marine, boat starter, or deep-cycle battery systems. 
• Selectable charging modes for each bank: 12 V, 12 V AGM, 12 V Lithium, and 12 V Repair Mode — supports flooded, gel, EFB, AGM and lithium-ion batteries. 
• Integrated thermal sensor for precision charging: adapts to ambient temperature to avoid over-charging in hot climate or under-charging in cold weather (operational range down to -4 °F and up to 104 °F). 
• Built tough: Fully sealed with an IP68 ingress protection rating, proven in thousands of hours submerged life-cycle testing — ideal for marine and harsh environments. 
• Versatile mounting: Simplified installation system allows mounting in any orientation — even upside-down — with integrated anti-vibration backing to absorb shock, vibration and noise. 
• Revives deeply discharged batteries: Includes Force Mode to safely charge batteries down to 1 V (or even zero volts) and automatic diagnostics to detect and reverse sulfation or acid stratification. 
• Universal compatibility: Works with 120 V to 240 V AC input and is suitable for 12 V battery systems up to ~230 Ah per bank for maintenance use. 
• Solid warranty: Backed by a 3-year limited warranty with product registration, ensuring your investment is protected. 

Specifications at a Glance:

• Amperage: 30 A total, 10 A per bank
• Voltage: 12 V DC output per bank
• Banks: 3 individually controlled
• Compatible battery types: Wet / Flooded, Gel, Maintenance-Free, AGM, Lithium (Li FePO₄ with BMS)
• Ingress Protection: IP68, fully sealed and waterproof
• Mounting size: Approx. 10.51″ W × 8.11″ H × 2.83″ D, weight ~13.43 lb. 
• Operating Conditions: Line voltage 120-240 V AC, frequency 50/60 Hz; temperature range -20 °C to +40 °C. 

Why Choose It:
For boaters, marine professionals, or anyone managing multiple 12 V battery banks in a demanding environment, this charger offers high versatility, durability and intelligent charging.

Its waterproof design, multi-chemistry support, advanced battery recovery features and multi-bank independent control make it a standout for maximizing battery life and performance. The compact footprint (10% smaller than the previous GEN3 model) adds installation flexibility without compromising power. 

Ideal Applications:

• Multi-bank marine power systems (starter + trolling + auxiliary)
• Deep-cycle battery banks on boats, RVs or off-grid backup systems
• Mixed battery chemistry systems (lead-acid + lithium) requiring one charger
• Harsh environments where waterproofing and shock resistance matter

What’s in the Box:

• GENPRO10X3 onboard battery charger
• (2) self-tapping mounting screws
• DC cables (72 in with eyelets) & AC cable (72 in)
• User guide & warranty information 

Harness the power of precision charging, intelligent diagnostics and rugged marine durability – all in one compact unit. Upgrade your onboard or deep-cycle charging system now with the GENPRO10X3.

WARNING: This product can expose you to chemicals which are known to the State of California to cause cancer, birth defects or other reproductive harm. For more information go to P65Warnings.ca.gov.