ProMariner ProNautic 1220P 20 Amp 3 Bank Battery Charger [63120] - CWR-41144

ProMariner ProNautic 1220P 20 Amp 3 Bank Battery Charger [63120] - CWR-41144

Package Contents:

All Digital Electronic Charging

Industry recognized with the 2010 IBEX Innovation Award, ProNauticP employs our ProMar Digital Performance Charging Platform which combines all digital control and software-based power conversion technology with global energy management features. ProNauticP addresses the trend of incorporating and using more 12-volt electronics on-board today's power, sail, cruising and sport fishing boats. Boasting twelve digitally-controlled performance charging profiles with finger tip selection, ProNauticP fully charges, conditions, maintains and re-conditions batteries while extending battery life and maximizing battery reserve power performance. ProNauticP is Power Factor Corrected with auto-ranging global AC input allowing all models to operate off a standard household power connection. Featuring dual digital displays for real-time display of actual charging voltage and amperage and AC power-on diagnostics with pass or fail status in addition to discreet fault indication for mis-wiring or adverse battery bank conditions. Designed to provide more time on the water enjoying what you like most... boating.

ProMar Digital Performance Charging

ProMar Digital Charging Performance - 12 Selectable Profiles

Up to 12 performance & precision 4-stage charging profiles: Charge, Condition, Maintain and Re-condition. Automatic dockside power mode for 12 Volt DC lighting and appliances. Factory set for Flooded (Lead Acid) batteries. AGM, GEL selectable.

Power Factor Correction - Global AC Input

Auto-ranging (100-250VAC/50-60Hz) global AC input with reduced harmonic distortion allowing all models to operate off a household power outlet connection. ProNauticP consumes less power so more AC power is available on board.

Distributed On Demand Technology

Automatically senses and distributes 100% of available charging amps to any one bank or combination of all banks.

Digital Self-Calculating Absorption and Battery Health Re-Conditioning Mode

Automatically programs conditioning time based on discharge state of batteries. Automatically de-sulfates batteries after 21 days in the maintain mode, improving reserve power performance & extending battery life.

Conservation Energy Saver Mode

After 72 hours of not seeing a load greater than 5 amps, float voltage will be lowered consuming less energy during storage periods. (for flooded & sealed charge profiles)

Service and Fault Mode LED Indicators

Real time indication of wiring faults or adverse conditions that may impact the operation of a boat's charging system.

Automatic Fan Speed Control

Quiet operation. Innovative front exhaust prevents restriction of air flow and cooling.

Automatic Temperature Compensation and Built-in Safety

Remote temperature probe included - Ignition protected and current limiting. Designed and constructed to: Marine ULc 1236, CE, CTick and FCC Class B.

Specifications

Charger Output Current	20A
Charging Banks	3
Portable	No
Charger Input Voltage	120/240V
Charger Output Voltage	12V
Box Dimensions	6"H x 11"W x 13"L
Weight	6.35 lbs
UPC	031669631205

What our Experts Think

• Efficient 20 Amp Multi‑Bank Charging
  The ProMariner ProNautic 1220P offers reliable three‑bank charging for start, house, and accessory batteries — ideal for smaller marine and RV electrical systems.
• Smart Multi‑Stage Charging
  Advanced algorithms optimize battery health by reducing overcharge, heat, and stress, resulting in longer battery life and better performance.
• Independent Bank Control
  Separate charging per bank ensures proper voltage and current delivery, keeping all battery banks balanced and ready.
• Marine‑Ready Durability
  Corrosion‑resistant construction and rugged design withstand moisture, vibration, and salt spray — built for the marine environment.
• Easy Installation & Operation
  Straightforward wiring and intuitive functionality make setup quick and maintenance simple.

Q&A

Q: What is the ProMariner ProNautic 1220P 20 Amp 3 Bank Battery Charger [63120]?
A: A high‑performance marine battery charger that delivers 20 A total charging power across three independent battery banks, ideal for boats with multiple 12 V battery systems. It uses advanced digital charging technology to condition and maintain batteries efficiently.

Q: How does it manage charging?
A: It features ProMar Digital Performance Charging with up to 12 selectable charging profiles that automatically charge, condition, maintain, and re‑condition batteries — improving battery life and reserve capacity.

Q: What is Distributed‑On‑Demand™ Technology?
A: This technology automatically senses and allocates full available amperage to any one bank or combination of banks as needed for optimal charging efficiency.

Q: What kind of AC input does it support?
A: It offers auto‑ranging global AC input (100–250 VAC, 50/60 Hz) with power factor correction, allowing operation from standard household or marine shore power without distortion.

Q: What user feedback and diagnostics are available?
A: Dual digital displays show real‑time voltage and amperage, with diagnostic indicators for AC power status and fault conditions like mis‑wiring or adverse battery situations.

Q: What additional features support performance and reliability?
A: Conservation energy‑saver mode reduces float power when not needed, automatic fan speed and temperature compensation improve cooling and efficiency, and built‑in safety with temperature probe and ignition protection enhances durability.

Q: Why choose this ProMariner charger?
A: It delivers smart, flexible, and efficient charging with marine‑rated construction — perfect for powering and protecting multiple battery banks on powerboats, sailboats, and sport fishing vessels.

Maintenance Tips

• Clean Connection Points: Periodically inspect and wipe AC input plug, DC battery leads, and terminal lugs to remove dust and corrosion — secure tight, clean connections improve charging reliability.
• Ensure Ventilation & Mounting: Install the unit in a dry, ventilated spot with space around it; proper airflow helps the automatic fan cooling operate quietly and prevents overheating.
• Inspect Cables & Wiring: Check AC and DC cables for wear, cracks, or looseness; replace damaged cables and retighten any loose terminals promptly to prevent voltage drop or faults.
• Monitor Charge Status: Use the digital displays and fault indicators to verify correct charge profiles and catch wiring or battery issues early.
• Avoid Moisture Exposure: Even with marine construction, keep the charger away from direct water spray — wipe off any condensation and keep connectors dry.
• Match Battery Types: Set the charger’s profile (Flooded, AGM, GEL, etc.) to match your battery chemistry for optimal conditioning and extended battery life.