Minn Kota Mk2 Dc Alternator Charger 2 Bank 20 Amp
SKU: 20456288807

Minn Kota Mk2 Dc Alternator Charger 2 Bank 20 Amp

$106.13 $117.92
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Ships within 48 hours · Estimated delivery Jul 8 - Jul 13

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Description

Minn Kota Mk2 Dc Alternator Charger 2 Bank 20 AmpMinn Kota MK 2 DC Alternator On Board Charger Model: 1821032 UPC: 029402031795 Charge on the fly technology Battery Protection LED display Waterproof Construction 3 year replacement warranty CHARGE ON THE FLY TECHNOLOGY Alternator chargers boost your trolling batteries while on the water. They take excess power from the outboard's alternator and deliver it to your trolling batteries to extend run times, decrease on shore charge times and increase

Minn Kota MK 2 DC Alternator On-Board Charger

Model: 1821032
UPC: 029402031795
  • Charge on the fly technology
  • Battery Protection
  • LED display
  • Waterproof Construction
  • 3-year replacement warranty

CHARGE-ON-THE-FLY TECHNOLOGY
Alternator chargers boost your trolling batteries while on the water. They take excess power from the outboard's alternator and deliver it to your trolling batteries to extend run times, decrease on-shore charge times and increase battery life.

BATTERY PROTECTION
Frequent deep discharges can damage your battery over time. With the boost you get from an Alternator charger, you avoid those deep discharges - in addition to shortening charge times and extending battery life.

3-YEAR REPLACEMENT WARRANTY
Minn Kota stands behind every on-board battery charger with a full three-year replacement warranty.

Specifications
Banks 2
Output per bank 10 amps
Total ouput 20 amps
Dimensions 10-1/2"" x 7-1/4"" x 3-1/2""
Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 20456288807

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4.8 ★★★★★
Based on 786 reviews
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Product Reviews
C
Verified Purchase
Carb was beautiful once I got it tune in, cranks great runs smooth I would buy it again if needed
Fort Morgan, US
★★★★★ 5
For motorcycles
Size: 32 oz, Style: 32 Fl Oz, Pattern Name: Lube
Great stuff, good price
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 25, 2026
J
Verified Purchase
JNL
Charlottesville, US
★★★★★ 5
The best lower unit gear oil I have used
Size: 32 oz, Style: 32 Fl Oz, Pattern Name: Lube
I have been boating my whole life, this is by far the best gear oil. I use this in my Johnson 115 even though this is technically made by Mercury. I seem to get less if any water intrusion into my gearcase with this oil. If there is any, the oil emulsifies the water and continues to protect the gears. I have had better luck with this than Pennzoil marine or others. Highly recommend. It is a blue color and easy to drain and fill.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 23, 2026
D
Verified Purchase
Debra
Alexandria, US
★★★★★ 5
Great
Size: 32 oz, Style: 32 Fl Oz, Pattern Name: Lube
Great lube for the boat
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 19, 2026
J
Verified Purchase
Joshua Murray
Charlottesville, US
★★★★★ 5
recommend
Size: 32 oz, Style: 32 Fl Oz, Pattern Name: Lube
great price
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 22, 2026
C
Verified Purchase
Christopher C.
Belleville, US
★★★★★ 4
Does not come with a pump.
Size: 32 oz, Style: 32 Fl Oz, Pattern Name: Lube
The Good: Changing the fluid in the lower unit is a very easy DIY job. This can save you hundreds of dollars each year by doing it yourself. The Bad: You need a special pump to change the oil, and sometimes it comes with the gear lube. Unfortunately this product did not come with it. Luckily my neighbor had an extra one from changing the lube a different boat laying around and was able to use that. The Ugly: If you have to go get the pump, that could cost a few extra dollar but is just an extra nuisance. The pumps are interchangable but you just need to clean it between uses (DON'T MIX DIFFERENT OIL BRANDS)
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on October 28, 2025

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