NOCO Genius GENPRO10X4 4-Bank 40A 12V Onboard Marine Battery Charger and Maintainer Black
NOCO Genius GENPRO10X4: 4-Bank 40A (10A/Bank) 12V Onboard Battery Charger and Maintainer
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NOCO Genius GENPRO10X4: 4-Bank 40A (10A/Bank) 12V Onboard Battery Charger and Maintainer

|19 ratings

Key item features

  • Compact Design: The NOCO GENPRO10X4 is 41% smaller than its predecessor, the GEN4, yet delivers 33% more power.
  • Four-Bank Charger: Features a 40-amp capacity, with 10 amps per bank, suitable for 12-volt batteries including marine, boat, starter, and deep-cycle batteries.
  • Versatile Charging Modes: Independently charge each battery bank with selectable modes such as 12V, 12V AGM, 12V Lithium, and 12V Repair Mode.
  • Thermal Compensation: Integrated thermal sensor adjusts the charge to prevent over-charging in hot climates and under-charging in cold climates.
  • Dead Battery Recovery: Capable of charging batteries as low as 1-volt and includes a force mode for manually charging dead batteries down to zero volts.
  • Easy Installation: Simplified mounting system allows for quick installation in any direction, including upside-down, with anti-vibration backing.
  • Waterproof and Durable: Fully-sealed, IP68-rated enclosure designed to withstand full submersion, shock, and vibration.
  • Complete Package: Includes the GENPRO10X4 charger, 72-inch DC cables with 3/8-inch eyelets, 72-inch Type-B AC cable, self-tapping mounting screws, and a user guide.
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Specs

Automotive battery charger type, Lead-Acid (AGM, Gel, Flooded, Maintenance Free) and Lithium-IonVolts, 12 VoltsAmps, 40 APower type, Corded ElectricDisplay, DigitalBrand, NOCO

About this item

Product details

The NOCO GENPRO10X4 is the ultimate 4-bank onboard marine battery charger, delivering 40 amps of total power—10 amps per bank—for charging and maintaining up to four 12-volt batteries rated up to 230 amp-hours each. Built for professionals, this charger supports all battery chemistries, including lead-acid and lithium-ion, and is ideal for complex marine, RV, and multi-bank setups. Each bank operates independently with selectable charging modes—12V, 12V AGM, 12V Lithium, and 12V Repair Mode—and features advanced thermal compensation to maintain optimal charging in any climate. Able to charge batteries down to 1-volt, or activate Force Mode to recover zero-volt batteries, the GENPRO10X4 ensures complete control and unmatched reliability. Housed in a fully sealed, IP68-rated enclosure built to withstand full submersion, shock, and vibration, this charger installs easily in any orientation thanks to its anti-vibration mounting design. Certified to UL1236, ISO 8846, and compliant with 33 CFR 183.410, the GENPRO10X4 is the most powerful and dependable multi-bank charger in its class. Included in the box is the GENPRO10X4 40-Amp 4-Bank charger with 72-inch DC cables featuring 3/8-inch (M10) eyelets, a 72-inch Type-B AC cable, eight self-tapping mounting screws, a user guide, and a 3-year warranty.
  • MEET THE NOCO GENPRO10X4— Similar to our GEN4, only better. It's 41% smaller and delivers 33% more power. It's one of the best performing onboard marine battery chargers we have ever made.
  • MULTIPLE BANKS — A four-bank onboard battery charger rated a 40-amps - 10-amps per bank - for 12-volt batteries, including marine, boat, starter, and deep-cycle batteries.
  • CHARGING MODES — Independently charge and control each battery bank with selectable charging modes - including 12V, 12V AGM, 12V Lithium, and 12V Repair Mode - for all types of lead-acid and lithium-ion batteries.
  • ENJOY PRECISION CHARGING — An integrated thermal sensor detects the ambient temperature and alters the charge to eliminate over-charging in hot climates and under-charging in cold climates.
  • CHARGE DEAD BATTERIES — Charges batteries as low as 1-volt. Or use the all-new force mode that allows you to take control and manually begin charging dead batteries down to zero volts.
  • REDEFINED MOUNTING — A simplified mounting system allows for quick and easy installations in any direction - even up-side-down - with an integrated anti-vibration backing to isolate shock, vibration, and noise.
  • DESIGNED FOR WATER — A fully-sealed and waterproof onboard battery charger with an ingress protection rating of IP68, but has survived brutal life cycle testing, including thousands of hours underwater.
  • WHATS IN THE BOX — GENPRO10X4 40-amp 4-bank waterproof onboard marine battery chargers (120-240VAC) with a 72-Inch (182cm) DC cables with 3/8-inch (M10) eyelets and a 72-inch (182cm) Type-B AC cable, (2) self-tapping mounting screws, user guide, and 3-year warranty.
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Specifications

Automotive battery charger type

Lead-Acid (AGM, Gel, Flooded, Maintenance Free) and Lithium-Ion

Volts

12 Volts

Amps

40 A

Power type

Corded Electric

Warranty

Warranty information

3-Year Limited Warranty

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Warnings

Customer ratings & reviews

4.8 out of 5 stars
stars
19 ratings11 reviews
Includes global ratings and reviews
How item rating is calculated
  1. 5 stars89% (17)
  2. 4 stars5% (1)
  3. 3 stars5% (1)
  4. 2 stars0% (0)
  5. 1 star0% (0)
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Showing 1-3 of 11 reviews

Jul 30, 2025
Reviewer name: sylvia
Sold byNOCODelivered byWalmart
5 out of 5 stars
5 out of 5 stars review

Verified Purchase

Quick home delivery

Quick home delivery, at a better price than anywhere else!

Incentivized Review
Helpful?1QWRSLMTFVNP271934876
May 13, 2026
Reviewer name: Doug
Sold byNOCODelivered byWalmart
5 out of 5 stars
5 out of 5 stars review

Verified Purchase

This is a good charger

This replaced an older, failed charger from a different company. This one is very flexible in that each bank can be configured to the type of battery it is maintaining.

Incentivized Review
Helpful?1QWRSLMTFVNP271934876
Oct 13, 2025
Reviewer name: Rochelle
Sold byNOCODelivered byWalmart
5 out of 5 stars
5 out of 5 stars review

Verified Purchase

boat batteries

easy install, seems to be working great, taking the boat out in a couple weeks

Incentivized Review
Helpful?1QWRSLMTFVNP271934876
Current price is $424.95
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4.8 stars out of 5, based on 989 seller reviews(4.8)
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