As an Amazon Associate I earn from qualifying purchases.

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 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. Multiple banks - a two-bank onboard battery charger rated a 10-amps - 5-amps per bank - for 12-volt batteries, starter, including marine, boat, and deep-cycle batteries.

Also activates a more rigorous, complete cleaning at the push of a button. Battery type selection: each charging bank can be selected to your specific battery type AGM, gel or flooded lead acid to guarantee a safe, protected charge.




It's one of the best performing onboard marine battery chargers we have ever made. It's 37% smaller and delivers 43% more power. Meet the gen5x3 - similar to our genm3, only better. 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. 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. 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.

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. Four color multi-stage mode LED status bar.

Meet the genpro10x2 - similar to our gen2, only better. It's one of the best performing onboard marine battery chargers we have ever made. 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, user guide, 2 self-tapping mounting screws, and 3-year warranty.
Multiple banks - a two-bank onboard battery charger rated a 20-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. 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. 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, user guide, 2 self-tapping mounting screws, and 3-year warranty.
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 27% smaller and delivers 33% more power. Charge dead batteries - charges batteries as low as 1-volt. Multiple banks - a three-bank onboard battery charger rated a 30-amps - 10-amps per bank - for 12-volt batteries, boat, starter, including marine, and deep-cycle batteries. Meet the genpro10x3 - similar to our gen3, only better.
1. Guest
#ad
Guest On-Board Battery Charger 10A / 12V; 2 Bank; 120V Input, 2711A
#adGuest #ad - 12v 10 amp 2 bank bank on-board battery charger. Built-in safety: reverse polarity, over-voltage, over-current, over-temperature and ignition protection. For all 12 volt flooded and AGM lead acid batteries.More information #ad
Dedicated battery charging, sensing and control per bank. 2 year warranty. In-line fuses for maximum DC wire protection. 100% waterproof ip67 and shock resistant for all fresh and saltwater applications.Brand | Guest #ad |
Manufacturer | Guest #ad |
Height | 9 Inches |
Length | 7.5 Inches |
Weight | 4.7 Pounds |
Width | 2.4 Inches |
Part Number | 2711A |
Model | 2711A |
More information #ad
2. NOCO
#ad
12V Onboard Battery Charger, Battery Maintainer and Battery Desulfator with Temperature Compensation, 2-Bank, 10-Amp 5-Amp Per Bank Fully-Automatic Smart Marine Charger, NOCO Genius GEN5X2
#adNOCO #ad - Charge dead batteries - charges batteries as low as 1-volt. Meet the gen5x2 - similar to our genm2, 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. 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, 2 self-tapping mounting screws, user guide, and 3-year warranty.Or use the all-new force mode that allows you to take control and manually begin charging dead batteries down to zero volts.
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. 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 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. Multiple banks - a two-bank onboard battery charger rated a 10-amps - 5-amps per bank - for 12-volt batteries, starter, including marine, boat, and deep-cycle batteries.
Brand | NOCO #ad |
Manufacturer | NOCO #ad |
Height | 5.39 Inches |
Length | 9.15 Inches |
Weight | 5.26 Pounds |
Width | 7.2 Inches |
Part Number | GEN5X2 |
Model | GEN5X2 |
Warranty | 3-Year Limited |
More information #ad
3. Minn Kota
#ad
Minn Kota 1832300 MK 230 PC Precision On-Board Marine Battery Charger, 2 Bank x 15 Amps, Black
#adMinn Kota #ad - Battery equalization: cleans and protect your battery flooded lead acid only every time you plug in. Low-line voltage compensation: when outlets don't put out the 120 volts they are supposed to, Precision Chargers compensate to deliver a fast, consistent charge no matter what.Also activates a more rigorous, complete cleaning at the push of a button. Battery type selection: each charging bank can be selected to your specific battery type AGM, gel or flooded lead acid to guarantee a safe, protected charge.
More information #ad
Waterproof construction: All on-board chargers are built to be waterproof, shock-resistant and vibration-resistant. Automatic temperature compensation: Precision chargers sense and adjust to ambient temperature fluctuations to ensure a fast, accurate charge.Brand | Minn Kota #ad |
Manufacturer | Johnson Outdoors #ad |
Height | 0 Inches |
Length | 0 Inches |
Weight | 11.5 Pounds |
Width | 0 Inches |
Part Number | 1832300 |
Model | 1832300 |
Warranty | 3 Year Limited Manufacturer Warranty |
More information #ad
4. Minn Kota
#ad
5 amps per bank, Minn Kota 1822105 MK 210D On-Board Battery Charger 2 Banks
#adMinn Kota #ad - Three-year warranty. Oem equivalent part Number: 702089. Multi-stage charging and automatic temperature compensation. Saltwater tested and fully corrosion-resistant.More information #ad
Part number: 1822105. Fit type: Universal Fit. Digitally controlled microprocessor design protects your batteries so you can stay on the water longer. 2 banks; 5 amps per bank.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
5. Marinco
#ad
ChargePro 10A 2 Bank 12V/24V Waterproof Battery Charger
#adMarinco #ad - Replaces guest 2611A. Microprocessor controlled for accurate charging. Universal input 120/230V input for go-anywhere freedom. Sense-send technology senses the power needs of each battery and sends correct charge. Intuitive operation. Charge flooded, AGM or Gel batteries.More information #ad
Brand | Marinco #ad |
Manufacturer | Marinco Electrical Group #ad |
Height | 2.63 Inches |
Length | 9 Inches |
Width | 9.13 Inches |
Part Number | 4013737 |
Model | 28210 |
Warranty | LIMITED WARRANTY |
More information #ad
6. Marinco
#ad
Marinco 28210 10A 2-Bank On-Board Battery Charger, 12/24V Electronics Accessories
#adMarinco #ad - 15-years as premier solution provider. New. Same day Shipping on Request. Complimentary white glove Service - Just-Ask-We-Take-Care-of-It. Best value and Performance in its Class.More information #ad
Brand | Marinco #ad |
Manufacturer | Marinco #ad |
Height | 3 Inches |
Length | 9 Inches |
Weight | 3.2 Pounds |
Width | 7.5 Inches |
Part Number | 28210 |
Model | GUES |
More information #ad
7. NOCO
#ad
NOCO Genius GEN5X3, 12V Onboard Battery Charger, 15-Amp 5-Amp Per Bank Fully-Automatic Smart Marine Charger, 3-Bank, Battery Maintainer and Battery Desulfator with Temperature Compensation
#adNOCO #ad - Multiple banks - a three-bank onboard battery charger rated a 15-amps - 5-amps per bank - for 12-volt batteries, including marine, boat, starter, and deep-cycle 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.It's one of the best performing onboard marine battery chargers we have ever made. It's 37% smaller and delivers 43% more power. Meet the gen5x3 - similar to our genm3, only better. 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
What's in the box - gen5x3 15-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. Or use the all-new force mode that allows you to take control and manually begin charging dead batteries down to zero volts. 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. 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.
Brand | NOCO #ad |
Manufacturer | NOCO #ad |
Height | 2.2 Inches |
Length | 7.1 Inches |
Weight | 6.09 Pounds |
Width | 5.7 Inches |
Part Number | GEN5X3 |
Model | GEN5X3 |
Warranty | 3-Year Limited |
More information #ad
8. ProMariner
#ad
ProMariner ProSport HD 20 Amp Triple Bank Waterproof Marine Battery Charger, 44021
#adProMariner #ad - Promar digital technology: Microprocessor and software controlled charging technology for fast, precise charging. Multi-stage charge mode, system Check OK, individual Battery Status and Battery Type indication.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. Four color multi-stage mode LED status bar.
More information #ad
Expanded led display with completion status gauge: led fuel gauge style completion status. Prosport hd 20a triple bank waterproof marine battery charger Part Number 44021 replaces the old ProMariner Gen 3 ProSport 20 plus part number 43021. 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.Brand | ProMariner #ad |
Manufacturer | ProMariner #ad |
Height | 6.3 Inches |
Length | 16.4 Inches |
Weight | 7.7 Pounds |
Width | 8.7 Inches |
Part Number | 44021 |
Model | 44021 |
More information #ad
9. NOCO
#ad
Battery Maintainer and Battery Desulfator with Temperature Compensation, 20-Amp 10-Amp Per Bank Fully-Automatic Smart Marine Charger, 12V Onboard Battery Charger, 2-Bank, NOCO Genius GENPRO10X2
#adNOCO #ad - Or use the all-new force mode that allows you to take control and manually begin charging dead batteries down to zero volts. 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's 19% smaller and delivers 33% more power.Meet the genpro10x2 - similar to our gen2, only better. It's one of the best performing onboard marine battery chargers we have ever made. 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, user guide, 2 self-tapping mounting screws, and 3-year warranty.
More information #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. 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. Multiple banks - a two-bank onboard battery charger rated a 20-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. Charge dead batteries - charges batteries as low as 1-volt.
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
10. NOCO
#ad
30-Amp 10-Amp Per Bank Fully-Automatic Smart Marine Charger, Battery Maintainer and Battery Desulfator with Temperature Compensation, NOCO Genius GENPRO10X3, 3-Bank, 12V Onboard Battery Charger
#adNOCO #ad - 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. 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. 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, user guide, 2 self-tapping mounting screws, and 3-year warranty.
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. 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 27% smaller and delivers 33% more power. Charge dead batteries - charges batteries as low as 1-volt. Multiple banks - a three-bank onboard battery charger rated a 30-amps - 10-amps per bank - for 12-volt batteries, boat, starter, including marine, and deep-cycle batteries. Meet the genpro10x3 - similar to our gen3, only better.
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