ProMariner 44021 ProSport HD Waterproof Marine Battery Charger, 20 Amp, 3 Bank
ProMariner 44021 ProSport HD Waterproof Marine Battery Charger, 20 Amp, 3 Bank
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ProMariner

ProMariner 44021 ProSport HD Waterproof Marine Battery Charger, 20 Amp, 3 Bank

|6 ratings
ProMariner 44021 ProSport HD Waterproof Marine Battery Charger, 20 Amp, 3 BankProMariner 44021 ProSport HD Waterproof Marine Battery Charger 20 Amp 3 BankPromariner ProSportHD PFCProMariner 44008 ProSport HD Waterproof Marine Battery Charger 8 Amp 2 BankProMariner 44006 ProSport HD Waterproof Marine Battery Charger 6 Amp 1 BankProMariner ProSportHD 6 Global Gen 4 6 Amp 1 Bank Battery ChargerProMariner 44012 ProSport HD Waterproof Marine Battery Charger 12 Amp 2 BankPromariner ProSportHD PFCPromariner ProSportHD PFC 20A 3BANKProMariner 44020 ProSport HD Waterproof Marine Battery Charger 20 Amp 2 Bank
Capacity20A/3 Bank 120 VAC

Key item features

  • Advanced Charging: ProMar Digital Technology with microprocessor and software control for fast, precise charging.
  • Efficient Power Use: Distributed-On-Demand Technology utilizes 100% of available charging amps by distributing unused amps to any battery as needed.
  • Optimal Cooling: Heavy Duty Tri-Surface Extruded Heat Sink Design ensures optimal cooling with upper, lower, and rear-facing heat sinks.
  • LED Display: Expanded LED display with a completion status gauge, featuring a four-color multi-stage mode LED status bar.
  • Battery Performance: Fully automatic multi-stage charging enhances battery performance and extends battery life.
  • Replacement Model: Replaces the old ProMariner Gen 3 ProSport 20 plus (part number 43021) with improved features.
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Current price is Now $229.99
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was $257.80
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Arrives by Fri, Aug 28
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Sold and shipped by Wholesale Marine
4.56 out of 5 stars
4.56 stars out of 5, based on 25 seller reviews(4.6)
Free 30-day returns
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$260.99
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Shipping, arrives by Thu, Aug 27 to Columbus, 43215
Sold and shipped by Boating Store
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5 out of 5 stars
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6 ratings3 reviews
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Showing 1-3 of 3 reviews

Jun 10, 2026
Reviewer name: NotSatisfied
Item details
Capacity: 12A/2 Bank 120 VAC
Sold and shipped byHern Marine
5 out of 5 stars
5 out of 5 stars review

Verified Purchase

satisfied

Had this same model that lasted 11 years. Purchased the new version with many new upgrades.

Helpful?182AS3WZ35BK714048529
Aug 24, 2023
Reviewer name: wesley
Sold byHern Marine
5 out of 5 stars
5 out of 5 stars review

Verified Purchase

Awesome investment

I always wanted a smart battery charging system. This one is perfect.

Helpful?182AS3WZ35BK714048529
Jul 10, 2023
Reviewer name: Norman
Sold byHern Marine
5 out of 5 stars
5 out of 5 stars review

Verified Purchase

Great Charger

Charges our food truck batteries well for us. One for our ice shaver and one for our lights and ipad.

Helpful?182AS3WZ35BK714048529