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

|5 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
Capacity:20A/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 $241.42
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  • Free 30-day returns
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Sold and shipped by Boating Store
4.656276326874473 stars out of 5, based on 1187 seller reviews(4.7)
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Showing 1-3 of 3 reviews

Jun 10, 2026
NotSatisfied
Item details
Capacity: 12A/2 Bank 120 VAC
Sold and shipped byBoating Store
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
Jul 10, 2023
Norman
Sold byBoating Store
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
Aug 24, 2023
wesley
5 out of 5 stars review

Verified Purchase

Awesome investment

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

Helpful?182AS3WZ35BK714048529