Top 10 On Board Battery Charger 3 Bank – Automotive Replacement Batteries & Accessories

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1. Schumacher

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15 Amp, for Marine Batteries, Schumacher Fully Automatic Direct-Mount 3-Battery Charger and Maintainer, 12V

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Schumacher #ad - Led indicators: lit charging status interface for multiple devices plus battery type selection function. Safe & reliable: reverse hook-up protection prevents the charger from operating if the clamps are reversed.

Smart charging: microprocessor-controlled automatic amperage rate adjustment and multi-stage charging for added precision, safety, and battery life; programmable memory maintains settings between multiple devices. Mountable and waterproof: ip65 Waterproof case offers protection when you're on the water; can be permanently mounted near battery. Reliable power: delivers 15 amp sequential charge and maintain to up to three marine batteries at a time; compatible with standard, AGM, gel, and deep-cycle batteries.
BrandSchumacher #ad
ManufacturerSchumacher #ad
Height3.5 Inches
Length13 Inches
Weight4.92 Pounds
Width10.5 Inches
Part NumberSC1389
ModelSC1389
Warranty1 Year

2. NOCO

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12V Onboard Battery Charger And Battery Maintainer, NOCO Genius GEN3, 3-Bank, 30-Amp 10-Amp Per Bank Fully-Automatic Smart Marine Charger

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NOCO #ad - Safely charge all types of lead-acid batteries from 25-230ah, including wet, gel, AGM, and deep-cycle batteries. A 30 amp 10 amp per bank on-board battery charger for charging and maintaining three 12-volt batteries independently.

Advanced safety protection featuring spark-proof technology, plus reverse polarity, thermal, ignition, and overcharge protection. Saltwater-tested to combat corrosion. One of the most advanced battery chargers in its class, 33 CFR 183. Charges 2x faster than most marine battery chargers. 410, iso 8846, which is certified to ul1236, plus backed by a 5-year. Built-in battery desulfator to recover worn-out batteries. Rugged and waterproof construction capable of submersion down to 3-meters and rated ip68 and NEMA 6p.
BrandNOCO #ad
ManufacturerNOCO #ad
Height1 Inches
Length1 Inches
Weight15.67 Pounds
Width1 Inches
Part NumberGEN3
ModelGEN3
Warranty3-Year Limited

3. NOCO

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12V Onboard Battery Charger, 15-Amp 5-Amp Per Bank Fully-Automatic Smart Marine Charger, NOCO Genius GEN5X3, Battery Maintainer And Battery Desulfator With Temperature Compensation, 3-Bank

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NOCO #ad - Fit type: Universal Fit. Charging modes - independently charge and control each battery bank with selectable charging modes - including 12V, 12V Lithium, 12V AGM, and 12V Repair Mode - for all types of lead-acid and lithium-ion batteries. Charge dead batteries - charges batteries as low as 1-volt. 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.

Meet the all-new gen5x3 - similar to our genm3, only better. 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. Or use the all-new force mode that allows you to take control and manually begin charging dead batteries down to zero volts. What's in the box - gen5x3 15-amp 3-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.

Multiple banks - a three-bank onboard battery charger rated a 15-amps - 5-amps per bank - for 12-volt batteries, boat, starter, including marine, and deep-cycle batteries. It's 37% smaller and delivers 43% more power. It's one of the best performing onboard marine battery chargers we have ever made. 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.
BrandNOCO #ad
ManufacturerNOCO #ad
Height5.62 Inches
Length10.08 Inches
Weight6.09 Pounds
Width8.86 Inches
Part NumberGEN5X3
ModelGEN5X3
Warranty3-Year Limited

4. NOCO

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30-Amp 10-Amp Per Bank Fully-Automatic Smart Marine Charger, Battery Maintainer and Battery Desulfator with Temperature Compensation, 3-Bank, NOCO Genius GENPRO10X3, 12V Onboard Battery Charger

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NOCO #ad - Charging modes - independently charge and control each battery bank with selectable charging modes - including 12V, 12V Lithium, 12V AGM, and 12V Repair Mode - for all types of lead-acid and lithium-ion batteries. Fit type: Universal Fit. 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.

What's in the box - genpro10x3 30-amp 3-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, user guide, 2 self-tapping mounting screws, and 3-year warranty. 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. It's one of the best performing onboard marine battery chargers we have ever made.

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. Multiple banks - a three-bank onboard battery charger rated a 30-amps - 10-amps per bank - for 12-volt batteries, boat, including marine, starter, and deep-cycle batteries. 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. It's 27% smaller and delivers 33% more power.
BrandNOCO #ad
ManufacturerNOCO #ad
Height6.06 Inches
Length12.9 Inches
Weight13.43 Pounds
Width10.67 Inches
Part NumberGENPRO10X3
ModelGENPRO10X3
Warranty3-Year Limited

5. NOCO

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3-Bank, 12-Amp 4-Amp Per Bank Fully-Automatic Smart Marine Charger, 12V Onboard Battery Charger And Battery Maintainer, NOCO Genius GENM3

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NOCO #ad - A 12 amp 4 amp per bank on-board battery charger for charging and maintaining three 12-volt batteries independently. 410, plus backed by a 5-year. One of the most advanced battery chargers in its class, ISO 8846, which is certified to ul1236, 33 CFR 183. Advanced safety protection featuring spark-proof technology, thermal, ignition, plus reverse polarity, and overcharge protection. Safely charge all types of lead-acid batteries from 20-120ah, gel, AGM, including wet, and deep-cycle batteries. Rugged and waterproof construction capable of submersion down to 3-meters and rated ip68 and NEMA 6p.
BrandNOCO #ad
ManufacturerNOCO #ad
Height6.38 Inches
Length11.26 Inches
Weight8.6 Pounds
Width9.92 Inches
Part NumberGENM3
ModelGENM3
Warranty3-Year Limited

6. NOCO

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12V Onboard Battery Charger, 2-Bank, Battery Maintainer And Battery Desulfator With Temperature Compensation, NOCO Genius GEN5X2, 10-Amp 5-Amp Per Bank Fully-Automatic Smart Marine Charger

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NOCO #ad - 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. 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.

It's one of the best performing onboard marine battery chargers we have ever made. Meet the all-new gen5x2 - similar to our genm2, only better. Fit type: Universal Fit. Charge dead batteries - charges batteries as low as 1-volt. Multiple banks - a two-bank onboard battery charger rated a 10-amps - 5-amps per bank - for 12-volt batteries, boat, starter, including marine, and deep-cycle batteries. It's 27% smaller and delivers 43% more power. 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.

Or use the all-new force mode that allows you to take control and manually begin charging dead batteries down to zero volts. 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. What's in the box - gen5x2 10-amp 2-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, user guide, 2 self-tapping mounting screws, and 3-year warranty.
BrandNOCO #ad
ManufacturerNOCO #ad
Height5.39 Inches
Length9.15 Inches
Weight5.26 Pounds
Width7.2 Inches
Part NumberGEN5X2
ModelGEN5X2
Warranty3-Year Limited

7. ProMariner

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44020, ProMariner ProSport HD 20 Amp Dual Bank Waterproof Marine Battery Charger

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ProMariner #ad - Multi-stage charge mode, system Check OK, individual Battery Status and Battery Type indication. Promar digital technology: Microprocessor and software controlled charging technology for fast, precise charging.

Expanded led display with completion status gauge: led fuel gauge style completion status. Prosport hd 20a dual bank waterproof marine battery charger part number 44020 replaces the old ProMariner Gen 3 ProSport 20 part number 43020 Four color multi-stage mode LED status bar. Distributed-on-demand technology: 100% of all available charging amps are utilized by distributing unused charging amps to any one or combination of all batteries as needed. Heavy duty tri-surface extruded heat sink design: Upper, lower and rear facing heat sink design for optimal cooling while delivering true rated constant current charging amps during its two charge mode.
BrandProMariner #ad
ManufacturerProMariner #ad
Height6.3 Inches
Length16.4 Inches
Weight8.77 Pounds
Width8.7 Inches
Part Number44020
Model44020

8. NOCO

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12V Battery Charger, Battery Maintainer, 2-Amp Direct-Mount Onboard Charger, and Battery Desulfator with Temperature Compensation, Trickle Charger, NOCO GENIUS2D

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NOCO #ad - Beyond maintenance - it's not a trickle charger, it's an advanced battery maintainer. Meet the genius2d - the all-new direct-mount onboard battery charger for an under-the-hood battery charging system and year-round battery maintenance. Restore your battery - automatically detects battery sulfation and acid stratification to restore lost battery performance for stronger engine starts and extended battery life.

A fully-automatic, worry-free battery charger for year-round use. Plus, combine with any of the GCP Series AC Port Plugs for remote charging access. Direct-mount - securely mounts nearby the battery with its rugged snap-fit mounting bracket and effortlessly installs into most materials with truss-head self-tapping screws. Charge dead batteries - charge batteries as low as 1-volt, and AGM, including flooded, as well as automotive, marine, gel, and deep-cycle 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. It monitors your battery 24/7, providing intuitive and safe maintenance charging with zero overcharge. Compatible with all types of vehicles - add a permanent onboard battery charger to any vehicle to make battery maintenance simple and easy.
BrandNOCO #ad
ManufacturerNOCO #ad
Height1.5 Inches
Length5 Inches
Weight0.73 Pounds
Width2.3 Inches
Part NumberGENIUS2D
ModelGENIUS2D
Warranty3-Year Limited Warranty

9. NOCO

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NOCO Genius GEN2, 20-Amp 10-Amp Per Bank Fully-Automatic Smart Marine Charger, 12V Onboard Battery Charger And Battery Maintainer, 2-Bank

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NOCO #ad - Rugged and waterproof construction capable of submersion down to 3-meters and rated IP68 and NEMA 6P. One of the most advanced battery chargers in its class, which is certified to UL1236, ISO 8846, 33 CFR 183. Safely charge all types of lead-acid batteries from 25-230Ah, including wet, gel, AGM, and deep-cycle batteries. A 20 amp 10 amp per bank on-board battery charger for charging and maintaining two 12-volt batteries independently. 410, plus backed by a 5-year. Advanced safety protection featuring spark-proof technology, plus reverse polarity, ignition, thermal, and overcharge protection.
BrandNOCO #ad
ManufacturerNOCO #ad
Height1 Inches
Length1 Inches
Weight9.06 Pounds
Width1 Inches
Part NumberGEN2
ModelGEN2
Warranty3-Year Limited

10. NOCO

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NOCO Genius GEN4, 40-Amp 10-Amp Per Bank Fully-Automatic Smart Marine Charger, 4-Bank, 12V Onboard Battery Charger And Battery Maintainer

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NOCO #ad - Safely charge all types of lead-acid batteries from 25-230Ah, including wet, AGM, gel, and deep-cycle batteries.410, which is certified to ul1236, ISO 8846, plus backed by a 5-year .

Advanced safety protection featuring spark-proof technology, plus reverse polarity, ignition, thermal, and overcharge protection. A 40 amp 10 amp per bank on-board battery charger for charging and maintaining four 12-volt batteries independently. One of the most advanced battery chargers in its class, 33 CFR 183. Rugged and waterproof construction capable of submersion down to 3-meters and rated IP68 and NEMA 6P.
BrandNOCO #ad
ManufacturerNOCO #ad
Height1 Inches
Length1 Inches
Weight16.36 Pounds
Width1 Inches
Part NumberGEN4
ModelGEN4
Warranty3-Year Limited