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Multi-stage charge mode, system Check OK, individual Battery Status and Battery Type indication. Expanded led display with completion status gauge: led fuel gauge style completion status. Promar digital technology: Microprocessor and software controlled charging technology for fast, precise charging.

Meet the gen5x2 - similar to our genm2, only better. It's one of the best performing onboard marine battery chargers we have ever made. 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 - gen5x2 10-amp 2-bank waterproof onboard marine battery chargers 120-240VAC with a 72-Inch DC cables with 3/8-inch eyelets and a 72-inch Type-B AC cable, user guide, 2 self-tapping mounting screws, and 3-year warranty. 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. Meet the gen5x1 - similar to our genm1, 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.
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. Charge dead batteries - charges batteries as low as 1-volt. 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.


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. Charge dead batteries - charges batteries as low as 1-volt. Meet the genpro10x3 - similar to our gen3, only better. Multiple banks - a three-bank onboard battery charger rated a 30-amps - 10-amps per bank - for 12-volt batteries, starter, including marine, boat, and deep-cycle batteries.

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. 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.
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 one of the best performing onboard marine battery chargers we have ever made. It's 41% smaller and delivers 33% more power. What's in the box - genpro10x1 10-amp 1-bank waterproof onboard marine battery chargers 120-240VAC with a 72-Inch DC cables with 3/8-inch eyelets and a 72-inch Type-B AC cable, 2 self-tapping mounting screws, user guide, and 3-year warranty.


It's one of the best performing onboard marine battery chargers we have ever made. 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 19% smaller and delivers 33% more power. 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. What's in the box - genpro10x2 20-amp 2-bank waterproof onboard marine battery chargers 120-240VAC with a 72-Inch DC cables with 3/8-inch eyelets and a 72-inch Type-B AC cable, 2 self-tapping mounting screws, user guide, and 3-year warranty.

1. ProMariner
#ad
ProMariner 44021 ProSport HD Waterproof Marine Battery Charger, 20 Amp, 3 Bank
#adProMariner #ad - 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. Four color multi-stage mode LED status bar.Multi-stage charge mode, system Check OK, individual Battery Status and Battery Type indication. Expanded led display with completion status gauge: led fuel gauge style completion status. Promar digital technology: Microprocessor and software controlled charging technology for fast, precise charging.
More information #ad
Prosport hd 20a triple bank waterproof marine battery charger Part Number 44021 replaces the old ProMariner Gen 3 ProSport 20 plus part number 43021. 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.Brand | ProMariner #ad |
Manufacturer | ProMariner #ad |
Height | 6.3 Inches |
Length | 16.4 Inches |
Width | 8.7 Inches |
Part Number | 44021 |
Model | 44021 |
More information #ad
2. NOCO
#ad
Battery Maintainer and Battery Desulfator with Temperature Compensation, 10-Amp 5-Amp Per Bank Automatic Waterproof Smart Marine Charger, 2-Bank, 12V Onboard Battery Charger, NOCO Genius GEN5X2
#adNOCO #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. 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 gen5x2 - similar to our genm2, only better. It's one of the best performing onboard marine battery chargers we have ever made. 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.
More information #ad
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 37% smaller and delivers 43% more power. 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 - gen5x2 10-amp 2-bank waterproof onboard marine battery chargers 120-240VAC with a 72-Inch DC cables with 3/8-inch eyelets and a 72-inch Type-B AC cable, user guide, 2 self-tapping mounting screws, and 3-year warranty. 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.
Brand | NOCO #ad |
Manufacturer | NOCO #ad |
Height | 5.39 Inches |
Length | 7.2 Inches |
Weight | 5.26 Pounds |
Width | 9.15 Inches |
Part Number | GEN5X2 |
Model | GEN5X2 |
Warranty | 3-Year Limited |
More information #ad
3. NOCO
#ad
Battery Maintainer and Battery Desulfator with Temperature Compensation, 5-Amp 5-Amp Per Bank Automatic Waterproof Smart Marine Charger, NOCO Genius GEN5X1, 12V Onboard Battery Charger, 1-Bank
#adNOCO #ad - What's in the box - gen5x1 5-amp 1-bank waterproof onboard marine battery chargers 120-240VAC with a 72-Inch DC cables with 3/8-inch eyelets and a 72-inch Type-B AC cable, user guide, 2 self-tapping mounting screws, and 3-year warranty. 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.Or use the all-new force mode that allows you to take control and manually begin charging dead batteries down to zero volts. Meet the gen5x1 - similar to our genm1, 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.
More information #ad
It's one of the best performing onboard marine battery chargers we have ever made. Multiple banks - a one-bank onboard battery charger rated a 5-amps - 5-amps per bank - for 12-volt batteries, including marine, starter, boat, and deep-cycle batteries. 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. Charge dead batteries - charges batteries as low as 1-volt. 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.
Brand | NOCO #ad |
Manufacturer | NOCO #ad |
Height | 3.8 Inches |
Length | 1.9 Inches |
Width | 5.1 Inches |
Part Number | GEN5X1 |
Model | GEN5X1 |
Warranty | 3-Year Limited |
More information #ad
4. Guest
#ad
120V Input, 2 Bank, Guest 2707A Guest On-Board Battery Charger 8A / 12V
#adGuest #ad - In-line fuses for maximum DC wire protection. 100% waterproof ip67 and shock resistant for all fresh and saltwater applications. For all 12 volt flooded and AGM lead acid batteries.More information #ad
Built-in safety: reverse polarity, over-current, over-voltage, over-temperature and ignition protection. Dedicated battery charging, sensing and control per bank. 2 year warranty. 12v 8 amp 2 bank on-board battery charger.Brand | Guest #ad |
Manufacturer | Guest #ad |
Height | 9 Inches |
Length | 7.5 Inches |
Weight | 4.5 Pounds |
Width | 2.4 Inches |
Part Number | 2707A |
Model | 2707A |
More information #ad
5. NOCO
#ad
Battery Maintainer and Battery Desulfator with Temperature Compensation, NOCO Genius GENPRO10X3, 30-Amp 10-Amp Per Bank Automatic Waterproof Smart Marine Charger, 3-Bank, 12V Onboard Battery Charger
#adNOCO #ad - 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. 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.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.
More information #ad
It's 27% smaller and delivers 33% more power. What's in the box - genpro10x3 30-amp 3-bank waterproof onboard marine battery chargers 120-240VAC with a 72-Inch DC cables with 3/8-inch eyelets and a 72-inch Type-B AC cable, 2 self-tapping mounting screws, user guide, and 3-year warranty. 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. Charge dead batteries - charges batteries as low as 1-volt. Meet the genpro10x3 - similar to our gen3, only better. Multiple banks - a three-bank onboard battery charger rated a 30-amps - 10-amps per bank - for 12-volt batteries, starter, including marine, boat, and deep-cycle batteries.
Brand | NOCO #ad |
Manufacturer | NOCO #ad |
Height | 6.06 Inches |
Length | 12.9 Inches |
Weight | 13.43 Pounds |
Width | 10.67 Inches |
Part Number | GENPRO10X3 |
Model | GENPRO10X3 |
Warranty | 3-Year Limited |
More information #ad
6. NOCO
#ad
10-Amp 10-Amp Per Bank Automatic Waterproof Smart Marine Charger, 12V Onboard Battery Charger, 1-Bank, NOCO Genius GENPRO10X1, Battery Maintainer and Battery Desulfator with Temperature Compensation
#adNOCO #ad - Charge dead batteries - charges batteries as low as 1-volt. Meet the genpro10x1 - similar to our gen1, only better. 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.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. 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.
More information #ad
Or use the all-new force mode that allows you to take control and manually begin charging dead batteries down to zero volts. Multiple banks - a one-bank onboard battery charger rated a 10-amps - 10-amps per bank - for 12-volt batteries, including marine, boat, 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 one of the best performing onboard marine battery chargers we have ever made. It's 41% smaller and delivers 33% more power. What's in the box - genpro10x1 10-amp 1-bank waterproof onboard marine battery chargers 120-240VAC with a 72-Inch DC cables with 3/8-inch eyelets and a 72-inch Type-B AC cable, 2 self-tapping mounting screws, user guide, and 3-year warranty.
Brand | NOCO #ad |
Manufacturer | NOCO #ad |
Height | 5.6 Inches |
Length | 2.8 Inches |
Width | 5.8 Inches |
Part Number | GENPRO10X1 |
Model | GENPRO10X1 |
Warranty | 3-Year Limited |
More information #ad
7. Minn Kota
#ad
5 amps per bank, Minn Kota 1822105 MK 210D On-Board Battery Charger 2 Banks
#adMinn Kota #ad - Part number: 1822105. Oem equivalent part Number: 702089. 2 banks; 5 amps per bank. Multi-stage charging and automatic temperature compensation.More information #ad
Digitally controlled microprocessor design protects your batteries so you can stay on the water longer. Three-year warranty. Fit type: Universal Fit. Saltwater tested and fully corrosion-resistant.Brand | Minn Kota #ad |
Manufacturer | Johnson Outdoors #ad |
Height | 3.98 Inches |
Length | 7.48 Inches |
Weight | 11.02 Pounds |
Width | 11.5 Inches |
Part Number | 1822105 |
Model | 1822105 |
Warranty | 3 Year Manufacturer |
More information #ad
8. NOCO
#ad
NOCO Genius GENPRO10X2, 12V Onboard Battery Charger, Battery Maintainer and Battery Desulfator with Temperature Compensation, 2-Bank, 20-Amp 10-Amp Per Bank Automatic Waterproof Smart Marine Charger
#adNOCO #ad - 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. Multiple banks - a two-bank onboard battery charger rated a 20-amps - 10-amps per bank - for 12-volt batteries, boat, including marine, starter, and deep-cycle batteries.It's one of the best performing onboard marine battery chargers we have ever made. 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.
More information #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. Meet the genpro10x2 - similar to our gen2, 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. It's 19% smaller and delivers 33% more power. 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. What's in the box - genpro10x2 20-amp 2-bank waterproof onboard marine battery chargers 120-240VAC with a 72-Inch DC cables with 3/8-inch eyelets and a 72-inch Type-B AC cable, 2 self-tapping mounting screws, user guide, and 3-year warranty.
Brand | NOCO #ad |
Manufacturer | NOCO #ad |
Height | 6.06 Inches |
Length | 10.28 Inches |
Width | 9.25 Inches |
Part Number | GENPRO10X2 |
Model | GENPRO10X2 |
Warranty | 3-Year Limited |
More information #ad
9. ProMariner
#ad
20 Amp / 2 Bank, Black, Standard, ProMariner 44028 ProSportHD 20 Battery Charger
#adProMariner #ad - Distributed-On-Demand Technology. Heavy duty tri-surface Extruded Heat Sink Design. Lightweight Design. Expanded led display with Completion Status Gauge. Promariner Digital Technology.More information #ad
Brand | ProMariner #ad |
Manufacturer | ProMariner #ad |
Height | 6.3 Inches |
Length | 16.4 Inches |
Width | 8.7 Inches |
Part Number | 44028 |
Model | 44028 |
Warranty | Manufacturer Limited |
More information #ad