Top 10 Onboard Marine Battery Charger – Automotive Replacement Batteries & Accessories

As an Amazon Associate I earn from qualifying purchases.

1. NOCO

#ad

NOCO Genius GENM2 8 Amp 2-Bank On-Board Battery Charger,Black

#ad
NOCO #ad - Saltwater-tested to combat corrosion. 410, iso 8846, which is certified to ul1236, plus backed by a 5-year. Safely charge all types of lead-acid batteries from 20-120ah, including wet, gel, AGM, and deep-cycle batteries.

Advanced safety protection featuring spark-proof technology, plus reverse polarity, ignition, thermal, and overcharge protection. 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. Built-in battery desulfator to recover worn-out batteries. An 8 amp 4 amp per bank on-board battery charger for charging and maintaining two 12-volt batteries independently.
BrandNOCO #ad
ManufacturerNOCO #ad
Height5.5 Inches
Length7.9 Inches
Weight5.8 Pounds
Width2.2 Inches
Part NumberGENM2
ModelGENM2
Warranty5-Year Limited Warranty

2. Guest

#ad

2 Bank, 120V Input, Guest 2707A ChargePro On-Board Battery Charger 8A / 12V

#ad
Guest #ad - In-line fuses for maximum DC wire protection. Dedicated battery charging, sensing and control per bank. 100% waterproof ip67 and shock resistant for all fresh and saltwater applications. 2 year warranty. For all 12 volt flooded and AGM lead acid batteries. Built-in safety: reverse polarity, over-current, over-voltage, over-temperature and ignition protection.12v 8 amp 2 bank on-board battery charger.
BrandGuest #ad
ManufacturerMARINCO #ad
Height9 Inches
Length7.5 Inches
Weight4.5 Pounds
Width2.4 Inches
Part Number2707A
Model2707A
Warrantyna

3. NOCO

#ad

NOCO Genius GENM3 12 Amp 3-Bank On-Board Battery Charger

#ad
NOCO #ad - 410, iso 8846, which is certified to ul1236, plus backed by a 5-year. A 12 amp 4 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, ignition, thermal, and overcharge protection. Safely charge all types of lead-acid batteries from 20-120ah, AGM, including wet, gel, and deep-cycle batteries. 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, 33 CFR 183.
BrandNOCO #ad
ManufacturerNOCO #ad
Height1 Inches
Length1 Inches
Weight8.6 Pounds
Width1 Inches
Part NumberGENM3
ModelGENM3
Warranty5 Year Limited Warranty

4. NOCO

#ad

12V Battery Charger, NOCO GENIUS2D, And Battery Desulfator With Temperature Compensation, Battery Maintainer, 2-Amp Direct-Mount Onboard Charger

#ad
NOCO #ad - Beyond maintenance - it's not a trickle charger, providing intuitive and safe maintenance charging with zero overcharge. 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.

Plus, combine with any of the GCP Series AC Port Plugs for remote charging access. Meet the genius2d - the all-new direct-mount onboard battery charger for an under-the-hood battery charging system and year-round battery maintenance. It monitors your battery 24/7, worry-free battery charger for year-round use. A fully-automatic, it's an advanced battery maintainer. Charge dead batteries - charge batteries as low as 1-volt, marine, gel, as well as automotive, including flooded, and AGM, and deep-cycle batteries.

Restore your battery - automatically detects battery sulfation and acid stratification to restore lost battery performance for stronger engine starts and extended battery life. Compatible with all types of vehicles - add a permanent onboard battery charger to any vehicle to make battery maintenance simple and easy. 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.
BrandNOCO #ad
ManufacturerNOCO #ad
Height1.5 Inches
Length5 Inches
Weight0.73 Pounds
Width2.3 Inches
Part NumberGENIUS2D
ModelGENIUS2D
Warranty3-Year Limited Warranty

5. BMK BLUEMICKEY

#ad

BMK 12V 5A Smart Battery Charger Portable Battery Maintainer with Detachable Alligator Rings Clips Fast Charging Waterproof Trickle Charger for Car Boat Lawn Mower Marine Sealed Lead Acid Battery

#ad
BMK BLUEMICKEY #ad - Made of high quality abs, multi-protects of short circuit/ ov/ oc/ overload/ Polarity Reverse, IP65 Waterproof, featured with Constant Pulse Current Maintenance function to avoid overcharge and discharge; Full-loaded and burn-in test prove its high reliable efficiency, stable performance. Qualiry ensurance & in time servicebmk is devoted to provide boat battery trickle charger with higher qulality to meet buyers' needs better and timely after-sale services, eliminate all your worries about getting this trolling motor battery charger.

4-stage smart charging - fully automatic boat battery charger 12v battery charger operated with 4 stages automatic charging process by MCU controller, 25%/50%/75%/100% to indicate quantity of electricity and monitor the whole charging progress. Upgraded defective battery detect/fast charging car battery boosterupdated with battery condition diagnose to detect the defective battery before charge.

Upgraded 72-hour safety features/multi safety protections - battery rescue & recoverupdated with 72 hours safety feature to commence anytime the charger is onto protect marginal batteries from over charging. Dc output 13. 8v/5a, it can also charge over 100ah batteries, ac input 100-240v, BMK 12V 5A car battery charger is suitable for charging batteries with 15-100Ah. Just get your automotive car Battery Charger Maintainer with confidence, and contact us if you have any problems about the item when using. Note: to better tender the battery, please make sure the battery capacity is higher than 15Ah, 1.
BrandBMK BLUEMICKEY #ad
ManufacturerBMK BLUEMICKEY #ad
Part Number4333804069
Warranty24 Months Warranty-Life Time Quality Guarantee

6. ProMariner

#ad

ProMariner 44021 ProSportHD Series Battery Charger-20 Amp Plus

#ad
ProMariner #ad - Fit type: Universal Fit. Lightweight, tri-surface heatsink design. Delivers true rated constant current charging amps during charge mode. Battery type: flooded, Gel, AGM. Fully-automatic multi-stage charging enhances battery performance while extending battery life. Delivers significantly faster charging though optimal cooling.
BrandProMariner #ad
ManufacturerProMariner #ad
Weight9.5 Pounds
Part Number44021
Model44021
WarrantyN/A

7. ProMariner

#ad

ProMariner 43008 Battery Charger Prosport 8 Amp

#ad
ProMariner #ad - This significantly reduces ac power consumption, Pros port's Energy Saver Mode will monitor and Auto Maintain batteries only when needed, lowers operating costs and maximizes reserve power performance. Primary digital technology: microprocessor and software controlled pulse charging technology delivering a 40 percent lighter design than the previous generation of epoxy filled chargers, cooler charger operation and faster charging.

System ok and battery bank trouble status indicators: Advanced technology eliminates time consuming troubleshooting by clearly indicating system and battery connections are OK or if a fault is present on a specific battery bank. Digital multi-stage performance charging: Fully charge and extend the life of your batteries - automatically charges, conditions and safely maintains all batteries on board for maximum time on the water.

Energy saver mode: after fully charging and conditioning batteries, maintaining a full state of charge. Storage recondition mode: during short or long-term storage, Pros port automatically reconditions all batteries on board once a month for maximum battery life and performance.
BrandProMariner #ad
ManufacturerMARINCO #ad
Height2.75 Inches
Length8.38 Inches
Weight3 Pounds
Width7.25 Inches
Part Number43008
Model43008
WarrantyNA

8. NOCO

#ad

NOCO Genius GEN2 20 Amp 2-Bank On-Board Battery Charger

#ad
NOCO #ad - One of the most advanced battery chargers in its class, iso 8846, which is certified to UL1236, 33 CFR 183. Safely charge all types of lead-acid batteries from 25-230Ah, gel, AGM, including wet, and deep-cycle batteries.410, plus backed by a 5-year. A 20 amp 10 amp per bank on-board battery charger for charging and maintaining two 12-volt batteries independently. Rugged and waterproof construction capable of submersion down to 3-meters and rated IP68 and NEMA 6P. Advanced safety protection featuring spark-proof technology, plus reverse polarity, ignition, thermal, and overcharge protection.
BrandNOCO #ad
ManufacturerNOCO #ad
Height2.5 Inches
Length7 Inches
Weight0 Pounds
Width6 Inches
Part NumberGEN2
ModelGEN2
WarrantyNone

9. NOCO

#ad

NOCO Genius GENM1 4 Amp 1-Bank On-Board Battery Charger

#ad
NOCO #ad - A 4 amp 4 amp per bank on-board battery charger for charging and maintaining one 12-volt battery. 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. Safely charge all types of lead-acid batteries from 20-120Ah, AGM, gel, including wet, and deep-cycle batteries. 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
Height3.8 Inches
Length6.6 Inches
Weight3.3 Pounds
Width2.2 Inches
Part NumberGENM1
ModelGENM1
Warranty5-Year Limited Warranty

10. NOCO

#ad

NOCO Genius GEN3 30 Amp 3-Bank On-Board Battery Charger

#ad
NOCO #ad - Safely charge all types of lead-acid batteries from 25-230ah, AGM, including wet, gel, and deep-cycle batteries. Built-in battery desulfator to recover worn-out batteries.

Charges 2x faster than most marine battery chargers. Rugged and waterproof construction capable of submersion down to 3-meters and rated ip68 and NEMA 6p. 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.410, plus backed by a 5-year. One of the most advanced battery chargers in its class, which is certified to ul1236, ISO 8846, 33 CFR 183. Saltwater-tested to combat corrosion.
BrandNOCO #ad
ManufacturerNOCO #ad
Height14 Inches
Length16 Inches
Weight0 Pounds
Width6 Inches
Part NumberGEN3
ModelGEN3
WarrantyNone