Quick Picks:
The 15 Best 4 Bank Marine Battery Charger Reviews:
SaleBestseller No. 1 
Minn Kota 1834602 MK-460 PCL Precision On-Board Marine Charger, 4 Bank x 15 Amps
- Battery Type Selection: Each charging bank can be selected to your specific battery type (Lithium (LiFePO4) AGM or flooded lead acid) to guarantee a safe, protected charge
- Automatic Temperature Compensation: Precision chargers sense and adjust to ambient temperature fluctuations to ensure a fast, accurate charge
- 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
- Waterproof Construction: All on-board chargers are built to be waterproof, shock-resistant and vibration-resistant
- Supported Battery Types: 12v AGM, 12v Flooded Lead Acid, 12v Lithium LiFePO6
SaleBestseller No. 2 
Minn Kota 1824405 MK 440D Digital On-Board Marine Battery Charger, 4 Bank x 10 amps
- Automatic Temperature Compensation: Chargers sense and adjust to ambient temperature fluctuations to ensure a fast, accurate charge
- Digital Control: Microprocessor-based design delivers a faster, more precise charge every time
- LED Indicator Lights: Inform of charge stage, maintenance mode status, error notifications and full charge
- Automatic Multi-Stage Charging: Controls the voltage and current your battery gets throughout the charging cycle, ensuring a fast, safe and precise charge
- Fit type: Universal Fit
Bestseller No. 3 
NOCO Genius GENPRO10X4, 4-Bank, 40A (10A/Bank) Smart Marine Battery Charger, 12V Waterproof Onboard Boat Charger, Battery Maintainer and Desulfator for AGM, Lithium (LiFePO4) and Deep-Cycle Batteries
- Meet the GENPRO10X4 - Similar to our GEN4, only better. It's 10% 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.
SaleBestseller No. 4 
NOCO GENIUS2X4, 4-Bank, 8A (2A/Bank) Smart Car Battery Charger, 6V/12V Automotive Charger, Battery Maintainer, Trickle Charger, Float Charger and Desulfator for AGM, Motorcycle and Lithium Batteries
- Meet the GENIUS2X4 - A four-bank battery charger for charging multiple batteries. It's the all-in-one universal charging solution - battery charger, battery maintainer, trickle charger, float charger, plus battery desulfator.
- Multiple banks - A four-bank battery charger maintainer rated a 8-amps - 2-amps per bank - designed to charge and maintain multiple vehicles like cars, motorcycles, ATVs, boats, RVs, trucks, lawn mowers, tractors and more.
- Do more with Genius - Designed for 6-volt and 12-volt sealed lead-acid automotive, marine, RV, powersport, and deep-cycle batteries, including flooded, gel, AGM, SLA, VRLA and maintenance-free, plus lithium-ion batteries (lifepo4).
- Enjoy precision charging - An integrated digital 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.
Bestseller No. 5 
AUTOGEN 4-Bank Marine Battery Charger, 8-Amp (2-Amp Per Bank) Smart Battery Trickle Charger Maintainer, 6V & 12V Onboard Battery Charger and Battery Maintainer
- 【4-Bank, 8-Amp】8 Amp (2 Amp per bank) on-board battery charger for charging and maintaining two 6V/12V batteries independently.
- 【Widely Batteries】Safely charge and maintain all types of Lead-acid batteries, including wet, gel, AGM, and deep-cycle batteries. Marine battery charger is also a great choice for Cars, Trucks, RV, Boats, Yachts.
- 【Automatic Voltage Detection】Auto select 6V/12V mode without keying button, it automatically determines the correct voltage for your target battery. Four bank charger output 4 x 2A depending on the condition of each battery. Constantly regulated voltage patterns allow the battery to be recharged fully and safely without fear of overcharging.
- 【Monitor Power Levels】Solid state two-color LED light indicates the state of the charge. Continuous charging, unlimited time, automatically enter the power maintenance mode after full, extend the battery life, worry-free battery charger for daily use.
- 【Multiple Security Protection】Multiple security protection, such as over current protection, overcharge protection, overheat protection, reverse connection protection, short circuit protection. Rugged and 100% waterproof, waterproof coefficient reach IP65.
Bestseller No. 6 
Guest 2740A Guest On-Board Battery Charger 40A / 12V; 4 Bank; 120V Input
- 12V 40 amp 4 bank on-board battery charger
- Built-in safety: reverse polarity, over-current, over-voltage, over-temperature and ignition protection. In-line fuses for maximum DC wire protection
- 100% Waterproof (IP67) and shock resistant for all fresh and saltwater applications
- Dedicated battery charging, sensing and control per bank
- For all 12 volt flooded and AGM lead acid batteries. 2 year warranty
Bestseller No. 7 
Extreme Max 1229.4023 Battery Buddy 4-Bank Battery Charger/Maintainer
- Allows simultaneous charge of up to four 12-volt lead-acid batteries - Each cord set measures 4' 10" in length for maximum efficiency and range
- 12V, 2A per charging bank
- LED light indicators show battery status
- Protection against wrong connections and short-circuiting
- No risk of overheating charger or batteries
Bestseller No. 8 
Schumacher DSR125 DSR ProSeries Automatic Smart Battery Charger/Maintainer - 10 Amps, 6V/12V 4-Bank- for Cars, Motorcycles, Lawn Tractors, Power Sports, Marine Batteries
- SMART CHARGE: Professional-grade, 4-bank charger that minimizes charge time and avoids overloads by automatically selecting between 2–10 amps of output per bank
- VERSATILE: Works for cars, motorcycles, lawn tractors, power sports, and marine batteries
- SAFE: Equipped with a safe-start reverse polarity and short-circuit protection, ensuring the charger will not apply current to the battery clamps until they are properly connected
- FAST-ACTING: Each bank is fully automatic and microprocessor-controlled, capable of charging 4 batteries at once
- MAXIMIZE OUTPUT: Connect two banks to the same battery to double the charging output current
Bestseller No. 9 
Clore Automotive PL4020, Pro-Logix 4-Bank, 8-Amp (2-Amp Per Bank) Fully Automatic Smart Charger, 12V Battery Charger, Battery Maintainer, Desulfator with Temperature Compensation, Black
- 12 Volt Charging and Maintaining
- Four independent channels. 2 amps per channel
- Fully automatic, multi-phase process
- Enhanced maintenance mode for long term charging
- Includes (4) clamp output leads
Bestseller No. 10 
Ionic Four Bank Charger
- Charges 12V Lithium (LiFePo4) batteries up to 4 banks at 10A the same time
- Can be used for lead acid or AGM batteries
- Lightweight and low profile design
- Can also be used for 2- 3 bank charging system
- 60in (5ft) cable length on each bank
Bestseller No. 11 
Minn Kota MK-440D 4 Bank x 10 Amps
- New
- Same Day Shipping on Request
- Best Value and Performance in its Class
- 15-Years as premier solution provider
- Complimentary White Glove Service - Just-Ask-We-Take-Care-of-It
Bestseller No. 12 
Dakota Lithium - 40 Amp Marine Onboard Charger (4 Bank) 12V Onboard Lithium Battery Charger - Charge Any Lithium Battery, for Onboard Charger for Boats, Golf Carts, or RV - LIFEPO4 Compatible Charger
- CHARGE 4 LITHIUM BATTERIES AT ONCE - Charge at 10 Amps per battery and charge 4 batteries at once. Input 100-120VAC, 50/60HZ. OUTPUT: 14.4 volts, 40.0 amps, 10 amps per bank / channel
- IP67 WATERPROOF - Designed for water this charger is double sealed, with a fully-sealed and waterproof onboard battery charger enclosed in a rugged and shock proof aluminum case with an ingress protection rating of IP67 for use in the coldest and wettest environments.
- SMART BMS COMMUNICATION: Charger will restart or "wake up" a Dakota Lithium BMS that has turned off a battery due to short circuit or excessive amp draw. Simply connect the charger to the battery to initiate a restart.
- FOR 12 VOLT LITHIUM BATTERIES: We highly recommend you use a LiFePO4 compatible charger. 12v chargers for lead acid batteries may work, but will decrease performance and lifespan of the battery.
- OPTIMUM VOLTAGE - 14.4 volts is recommended for Dakota Lithium (LiFePO4) batteries. This charger charges at 14.4 volts. Also great for charging lithium titinate oxide (LTO) batteries.
SaleBestseller No. 13 
Minn Kota Precision Digital Chrgr MK 440 PC 4 bank x 10 amps
- Waterproof, shock and vibration resistant aluminum construction;Battery Equalization : Yes
- Saltwater test, fully corrosion-resistant construction. Product Weight: 10 lbs.; Product Dimensions: 9.25" x 10.5" x 3"
- Short circuit, reverse polarity, arc and ignition protected
- FCC Compliant and UL listed to marine standard 1236
- Charge Time- 10-12 hours
Bestseller No. 14 
Bestseller No. 15 
Dual Pro 10 Amp/BankSportsman Series 4 Bank Charger
- Crafted from the highest quality material
- Perfect for outdoor and even indoor use
- Made in United States
Last update on 2023-05-28 / Affiliate links / Images from Amazon Product Advertising API