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NOCOGenius GEN5X3: 3-Bank, 15A Onboard Battery Charger - 5A Per Bank, 12V Waterproof Marine Charger with Overcharge Protection & Temperature Compensation – for Lead-Acid & Lithium Batteries

NOCOGenius GEN5X3: 3-Bank, 15A Onboard Battery Charger - 5A Per Bank, 12V Waterproof Marine Charger with Overcharge Protection & Temperature Compensation – for Lead-Acid & Lithium Batteries

Q: My application is a 36v golf cart (3 x 12v) - I'm assuming that I could use this for a battery maintainer (one "channel" for ea 12v battery)?

Yes. Channel 1 to battery 1, channel 2 to battery 2, channel 3 to battery 3.

Q: I have 2 group 31 Deep cycle batteries in series. Is the charge time with this charger longer leaving them connected? what's the difference?

As long as there is nothing hot feeding off the battery should charge just as fast either way. Leaving the charger connected all the time won’t hurt your batteries. It will go into standby on its own once the batteries reach full charge

Q: Can this be used for all types of standard 12V car batteries?

Yes, it works on 12 and 24 volt systems. I love mine and it will also tell you if your battery is bad. You will love it, works great!

Q: Is it supposed to stay lit after unplugged from marina? Mine is off while the boat is out.

No it doesn't stay lit when unplugged from the power supply.

Product ID: 249554814

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Details

Brand
NOCO
Color
Black
Product Dimensions
10.08"D x x
Item Weight
6.09 Pounds
Output Voltage
12 Volts

⚡15A total power output

💧IP68 waterproof rating

🌡️Thermal sensor temp compensation

Frequently Bought Together

NOCO Genius GEN5X3, 3-Bank, 15A (5A/Bank) Smart Marine Battery Charger, 12V Waterproof Onboard Boat Charger, Battery Maintainer and Desulfator for AGM, Lithium (LiFePO4) and Deep-Cycle Batteries

NOCO GCP1 15A AC Port Plug, 125V Power Inlet Socket, and Waterproof Electrical Outlet Receptacle Box with 16-Inch Integrated Outdoor Extension Cord

NOCO Genius GEN5X2, 2-Bank, 10A (5A/Bank) Smart Marine Battery Charger, 12V Waterproof Onboard Boat Charger, Battery Maintainer and Desulfator for AGM, Lithium (LiFePO4) and Deep-Cycle Batteries

Description

⚡ Power up your fleet with precision and marine-grade toughness!

FORCE MODE REVIVAL - Manually jumpstart dead batteries down to 0V—rescue neglected power sources others can’t touch.
SMART THERMAL CONTROL - Integrated temperature sensor optimizes charging to prevent overcharge or undercharge in any climate.
TRIPLE POWER PRECISION - Charge 3 batteries independently with 5A per bank for tailored power management.
EFFORTLESS INSTALLATION - Compact 37% smaller size with anti-vibration mounting system installs fast in any orientation, even upside down.
MARINE GRADE DURABILITY - Fully sealed IP68 waterproof design built to survive harsh marine environments and underwater use.

The NOCO Genius GEN5X3 is a compact, 3-bank onboard battery charger delivering 15 amps total (5A per bank) for 12V lead-acid and lithium batteries. Engineered for marine use, it features IP68 waterproofing, selectable charging modes including repair and lithium, and an integrated thermal sensor for temperature-compensated charging. Its Force Mode revives dead batteries from zero volts, while a redesigned mounting system ensures quick, secure installation with anti-vibration protection. Backed by a 3-year warranty and US engineering, it’s the ultimate charger for professionals demanding reliable, precise power management on the water.

Specifications

Manufacturer	NOCO
Brand	NOCO
Model	GEN5X3
Item Weight	6.09 pounds
Product Dimensions	10.08 x 8.86 x 5.63 inches
Country of Origin	China
Item model number	GEN5X3
Exterior	Painted
Manufacturer Part Number	GEN5X3
Special Features	Force Mode For Manual Battery Charging, Onboard Marine Battery Charger For Boats And More, Onboard Battery Maintainer, Trickle Charger And Battery Desulfator, Spark-Proof And Reverse Polarity Protection, Waterproof IP68 Ingress Protection, Temperature Compensation For Accurate Recharging
Lift Type	12v
Amperage	5 Amps
Voltage	12 Volts

Have a Question? See What Others Asked

My application is a 36v golf cart (3 x 12v) - I'm assuming that I could use this for a battery maintainer (one "channel" for ea 12v battery)?

I have 2 group 31 Deep cycle batteries in series. Is the charge time with this charger longer leaving them connected? what's the difference?

Can this be used for all types of standard 12V car batteries?

Is it supposed to stay lit after unplugged from marina? Mine is off while the boat is out.

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