Minn Kota

Minn Kota MK-345PC Precision On-Board Charger 3 Bank 15 Amps

SKU: 57883 · UPC: 029402043200 · MPN: 1833450
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02 · Overview

Minn Kota MK-345PC Precision On-Board Charger 3 Bank 15 Amps — Product description

Keep your boat's batteries primed for action with the Minn Kota Precision On-Board Charger. This rugged 3-bank powerhouse delivers 15 amps per bank for a total of 45 amps, ensuring quick recovery after long days on the water. Designed for serious anglers and boaters, it handles 12-volt flooded lead-acid, AGM, gel, and even lithium LiFePO4 batteries, adapting seamlessly to your setup.

Why Choose a Precision Charger for Your Marine Batteries?

In the unpredictable world of boating, reliable power is non-negotiable. Fluctuating shore power, temperature swings, and varying battery types can wreak havoc on standard chargers. This Minn Kota model steps up with smart tech that monitors and adjusts in real-time, preventing overcharging or underperformance. Imagine returning from a tournament with batteries that charge fully and evenly, ready for the next outing—no guesswork involved.

Key Features That Set It Apart

  • Bank-Specific Battery Selection: Tailor charging to each bank's battery type—AGM, gel cell, or flooded lead-acid—for optimal safety and performance. No more one-size-fits-all risks.
  • Battery Equalization Mode: Automatically balances cells on every charge to boost capacity and lifespan. Hit the button for a deep equalization on flooded batteries, clearing sulfation buildup like a pro maintenance session.
  • Low-Line Voltage Compensation: Shore outlets often dip below 120V from overloads or long cords. This charger senses it and ramps up to maintain steady output, slashing charge times.
  • Intuitive LED Display: At a glance, check battery type, charge stage, connection status, and any issues. It's your dashboard for battery health.
  • Multi-Stage Charging: Progresses through bulk, absorption, and float stages automatically, delivering precise voltage and current to avoid damage while maximizing efficiency.

Built for the Harsh Marine Environment

Boating means exposure to splashes, salt spray, vibrations, and shocks. This charger's waterproof, corrosion-resistant housing laughs it off—saltwater-tested and vibration-proof. The included AC plug holder keeps connections secure and dry. Measuring about 13 x 10 x 3.75 inches, it mounts neatly in tight bilge spaces without dominating your setup.

Smart Tech for Reliable Performance

  • Automatic Temperature Compensation: Sensors adjust charge rates for hot decks or chilly nights, protecting batteries from thermal stress.
  • Digital Microprocessor Control: Constantly tracks state-of-charge and temp for regulated, efficient charging—think longer fishing sessions without power worries.
  • True-Rated Power: Delivers every promised amp, no puffery, for faster turnaround times (typically 3-5 hours depending on depletion).

Safety first: Fully protected against shorts, reverse polarity, sparks, and ignition. Meets UL 1236 marine standards and FCC compliance for peace of mind.

Pro Tips for Maximizing Battery Life

Pair this charger with regular maintenance for peak results. Always match bank settings to your batteries, store at full charge during off-seasons, and equalize monthly on flooded types. For multi-battery trolling motor setups, balance loads evenly across banks to extend overall system life. Lithium users will appreciate the compatibility, but verify specific profiles for best results.

California Proposition 65 Warning: This product can expose you to chemicals including di(2-ethylhexyl)phthalate (DEHP), which is known to the State of California to cause cancer, birth defects, or other reproductive harm.

Frequently Asked Questions

What battery types does the Minn Kota 3-bank charger support?

It works with 12-volt flooded lead-acid, AGM (including high-performance), gel cell, and lithium LiFePO4 batteries. Select the type per bank for customized charging.

How does battery equalization benefit my setup?

Equalization balances cell voltages, removes sulfate buildup, and restores lost capacity—especially useful for flooded lead-acid batteries after heavy use.

Is this charger suitable for saltwater boats?

Yes, it's fully waterproof, shock-resistant, vibration-proof, and saltwater-tested to resist corrosion in marine environments.

What does the LED display show?

It indicates battery type per bank, charge status, connection quality, state-of-charge percentage, and diagnostic error codes.

Can it handle variable shore power?

Absolutely—low-line voltage compensation maintains full output even if input drops below 120V from extension cords or overloaded outlets.

How long does it take to fully charge batteries?

Expect 3-5 hours for typical deep-cycle batteries, thanks to 15 amps per bank and multi-stage efficiency—varies by battery size and depletion level.

Does it include mounting accessories?

It comes with an AC plug holder for secure, dry storage, plus ring terminals for easy battery connections.

Equip your vessel with charging reliability that matches Minn Kota's legendary durability. Ready to power up your adventures?

MK345PC Precision On-Board Charger

3 Bank
15 Amps/Bank
45 Amps total output

Battery Selection by Bank
On each bank, you can select what battery type you have connected (AGM, gel or flooded lead acid) to guarantee a safe, protected charge.

Battery Equalization
Every time you plug in a Precision charger, it _equalizes,_ meaning it cleans and conditions your battery to extend run time and battery life. You can also activate a more rigorous, complete equalization at the push of a button. Note: Only in flooded lead-acid battery setting.

Low-Line Voltage Compensation
When outlets get overloaded or hooked up to long extension cords, they don_t put out the 120 volts they_re supposed to. That makes charge times go up _ unless you_ve got a Precision charger, which compensates to deliver a fast, consistent charge no matter what.

Comprehensive LED Dispaly
Know right where you_re at with the LED display on your Precision charger. It displays the selected battery type for each bank, connection status, state of charge and error codes.

Automatic Multi-Stage Charging
Every Minn Kota charger controls the voltage and current your battery gets throughout the three stages of the charging cycle for a safe, precise charge.

Automatic Temp. Compensation
Charging your batteries at higher or lower temperatures can damage your battery. Our on-board chargers sense outside temperature fluctuations and adjust the charge accordingly, providing a fast, accurate charge.

True-Rated Output
Every Minn Kota on-board charger delivers a full, true-rated output for a faster charge.

Digital Control
Our microprocessor-based design enables our chargers to continually monitor the temperature and state of charge. It means faster, more regulated, precise charge for your battery - and a longer day of worry-free fishing.

AC Plug Holder
Included with all of our on-board chargers, this convenient holder keeps the charger plug dry, safe and easily accessible.

Waterproof Construction
All of our on-board chargers are built tough, with waterproof, shock-resistant and vibration-resistant rugged construction. Plus, they_re saltwater-tested to fully combat corrosion.

Specifications
For use with 12-, 24-, and 36-volt systems with 12V/6 cell batteries that are Flooded Lead Acid, Maintenance Free, Starved Electrolyte (AGM/HP AGM) or Gel only
  • Short circuit, reverse polarity, arc and ignition protected
  • FCC Compliant
  • Designed to UL 1236 marine standards

WARNING: This product can expose you to chemicals including di(2-ethylhexyl)phthalate (dehp) which is known to the State of California to cause cancer, birth defects or other reproductive harm. For more information go to P65Warnings.ca.gov.



They are half the weight of traditional car chargers, thus allowing users to independently select different types of batteries in each group and charge the batteries: lead acid, gel, AGM (...
SKU: NVN-57883
MPN: 1833450
UPC: 029402043200
03 · The numbers

Technical specifications

BrandMinn Kota
ModelMinn Kota MK-345PC Precision On-Board Charger 3 Bank 15 Amps
SKU / MFR#57883

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04 · Before you buy

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05 · Customer voices

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