7 Best 3 bank marine battery charger [2022]

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1. Schumacher-SC1389 Fully Automatic Direct-Mount 3-Battery Charger and Maintainer – 15 Amp, 12V – for Marine Batteries

  • 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
  • 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
  • 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

2. ProMariner Gen 3 ProSport 20 Amp 12/24/36 Volt 3 Bank Waterproof Marine Battery Charger 43021

  • The 12/24/36V, 20 Amp, 3 battery bank ProSport 20 Plus waterproof battery charger delivers fast efficient charging in a lightweight design
  • Distributed on Demand Technology utilizes 100% of the available charging amps and automatically distributes charge amongst all the batteries as needed . The result is faster, more efficient charging
  • 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
  • During short or long-term storage, ProSport automatically reconditions all batteries on board once a month for maximum battery life and performance
  • Compact and rugged aluminum design, dual in-line DC safety fuses for trolling motor and house battery banks. Built-in over-voltage, overload, over-temperature, reverse polarity and ignition protection
  • Digital LED Display and Battery Type Selector: LED indicators for Charging, Conditioning and Auto Maintain modes in addition to AC power and selected battery type

3. Guest On-Board Battery Charger 15A / 12V; 3 Bank; 120V Input, 2713A

  • 12V 15 amp 3 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

4. ProMariner ProSport HD 20 Amp Triple Bank Waterproof Marine Battery Charger, 44021

  • ProSport HD 20A Triple Bank Waterproof Marine Battery Charger (Part Number 44021) replaces the old ProMariner Gen 3 ProSport 20 plus (part number 43021)
  • ProMar Digital Technology: Microprocessor and software controlled charging technology for fast, precise charging
  • 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
  • Expanded LED Display with Completion Status Gauge: LED fuel gauge style completion status. Four color multi-stage mode LED status bar. Multi-stage Charge Mode, System Check OK, individual Battery Status and Battery Type indication

5. NOCO Genius GENPRO10X3, 3-Bank, 30-Amp (10-Amp Per Bank) Fully-Automatic Smart Marine Charger, 12V Onboard Battery Charger, Battery Maintainer And Battery Desulfator With Temperature Compensation

  • Multiple banks – A three-bank onboard battery charger rated a 30-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.Operating Temperature: -4° to 104° F (-20° to 50° C)
  • 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.
  • 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.
  • Meet the all-new GENPRO10X3 – Similar to our GEN3, only better. It’s 27% smaller and delivers 33% more power. It’s one of the best performing onboard marine battery chargers we have ever made.
  • Fit type: Universal Fit

6. Minn Kota 1833450 MK 345 PC Precision On-Board Marine Battery Charger, 3 Bank x 15 Amps

  • 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
  • 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
  • LED Indicator Lights: Inform of charge stage, maintenance mode status, error notifications and full charge
  • Battery Equalization: Cleans and protect your battery (flooded lead acid only) every time you plug in. Also activates a more rigorous, complete cleaning at the push of a button

7. Mastervolt 44010350 ChargeMaster Battery Charger, 12V 35A, 3 Banks

  • 3-Step+ charging technology for fast and complete charging
  • Safe and complete charging due to standard safety features
  • Memory function prevents overcharging in case of an unstable power Supply
  • 12V 35A

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

  • Meet the all-new GEN5X3 – Similar to our GENM3, only better. It’s 37% smaller and delivers 43% more power. It’s one of the best performing onboard marine battery chargers we have ever made.
  • 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.
  • 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.
  • 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.
  • Fit type: Universal Fit

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

  • A 12 amp (4 amp per bank) on-board battery charger for charging and maintaining three 12-volt batteries independently.
  • 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, thermal, ignition, and overcharge protection.
  • 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. 410, plus backed by a 5-year.

10. Minn Kota MK318PC 3 Bank x 6 Amp Precision Charger

  • 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

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