Search  for anything...
ProMariner

ProMariner 44008 ProSport HD Waterproof Marine Battery Charger, 8 Amp, 2 Bank

  • Based on 1,811 reviews
Condition: New
Checking for the best price...
$169.99 Why this price?

Buy Now, Pay Later

As low as $28.33 / mo
  • – 6-month term
  • – No impact on credit to apply
  • – Instant approval decision
  • – Secure and straightforward checkout

Ready to go? Add this product to your cart and select a plan during checkout.

Payment plans are offered through our trusted finance partners Klarna, Affirm, Afterpay, Apple Pay, and PayTomorrow. No-credit-needed leasing options through Acima may also be available at checkout.

Learn more about financing & leasing here.

Selected Option

Free shipping on this product

30-day refund/replacement

To qualify for a full refund, items must be returned in their original, unused condition. If an item is returned in a used, damaged, or materially different state, you may be granted a partial refund.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

Availability: In Stock.
Fulfilled by Amazon
Arrives Thursday, Apr 30
Order within 3 hours and 29 minutes
Available payment plans shown during checkout
Protection Plan Protect Your Purchase
Checking for protection plans...

Recently Viewed

Pattern Name: Charger


Style: 12/24V, 8 Amp, 2 Bank


Features

  • ProSport HD 8A 2 Bank Waterproof Marine Battery Charger (Part Number 44008)
  • ProMar Digital Technology: Microprocessor and software controlled charging technology for fast, precise charging
  • Distributed-On-Demand Technology: 100% of all available charging amps are utilized by distributing unused charging amps to any one or combination of all batteries as needed
  • Heavy Duty Tri-Surface Extruded Heat Sink Design: Upper, lower and rear facing heat sink design for optimal cooling while delivering true rated constant current charging amps during its two charge mode
  • Expanded LED Display with Completion Status Gauge: LED fuel gauge style completion status. Four color multi-stage mode LED status bar. Multi-stage Charge Mode, System Check OK, individual Battery Status and Battery Type indication

Description

The new ProSport HD features a lightweight, tri-surface heatsink design. This delivers significantly faster charging through optimal cooling, while delivering true rated constant current charging amps during charge mode. Fully automatic multi-stage charging enhances battery performance while extending battery life.

Brand: ProMariner


Color: Yellow/Gray


Product Dimensions: 8.7"D x 11.9"W x 6.7"H


Item Weight: 4 Pounds


Output Voltage: 24 Volts (DC)


Output Voltage: 24 Volts (DC)


Input Voltage: 120 Volts


Battery Charge Time: 10 Hours


Current Rating: 8 Amps


Amperage: 8 Amps


Connector Type Used on Cable: Battery Clamps/Ring Terminals


Number of Ports: 2


Item Dimensions D x W x H: 8.7"D x 11.9"W x 6.7"H


Item Weight: 4 Pounds


Specification Met: UL


Color: Yellow/Gray


Brand: ProMariner


Mfr Part Number: 44008


UPC: 031669440081


Manufacturer: ProMariner


Model Number: 44008


External Testing Certification: Não Aplicável


Item Type Name: boating-battery-chargers


Warranty Description: 3 Year


Built-In Media: Battery charger, AC/DC power cables


Unit Count: 1.0 Count


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Thursday, Apr 30

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

  • Klarna Financing
  • Affirm Pay in 4
  • Affirm Financing
  • Afterpay Financing
  • PayTomorrow Financing
  • Financing through Apple Pay
Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

Similar Products

Top Amazon Reviews

    • Charged
Pattern Name: Charger Style: 12/24/36V, 20 Amp, 3 Bank
Worked great. Easy to install. Fit perfect
Reviewed in the United States on April 13, 2026 by CDG_BMW
    • Great charger
Pattern Name: Charger Style: 12/24V, 12 Amp, 2 Bank
So far this appears to be working great, charging and maintaining my boat batteries Easy to use with clear directions, easy to install
Reviewed in the United States on October 26, 2025 by BigG
    • Great Product
Pattern Name: Charger Style: 12/24V, 20 Amp, 2 Bank
Review Image by Matt
I had the original version of this charger in our Crownline for 8 years and loved it. It worked perfectly, and kept the original batteries that came with the boat working great for that entire time. That is, until it got struck by lightning... So I ordered this, updated version of the same charger. It is exactly as nice as the old one with some nice upgrades including the charging gauge and the easier method of selecting the battery chemistry. I was extremely happy with the first one and would still have it if not for our mishap. I expect this one will carry on as the old one did, keeping my original batteries topped up when the boat is sitting. ... show more
Reviewed in the United States on June 11, 2025 by Matt
    • Works well, a good smart charger... be sure to run separate cables for each battery
Pattern Name: Charger Style: 12/24V, 8 Amp, 2 Bank
Replaced my old Guest unit which had failed (due to my mistake, running the engine while charging). The old unit used one common ground wire for both batteries. After checking on a couple boat wiring forums, I decided this unit would work better by running a separate ground for each battery. Even though the batteries' grounds are connected at the battery bank, I learned that the individual ground wire for each battery will allow it to monitor and charge each battery individually, to account for different charge levels. That's the theory anyway... I'm still not sure it's correct, but the manual says to have individual +/- for each battery too. So that's what I did, and ran another ground. Other than that installation was pretty easy. I like the charging cycles, IIRC there are 5 "smart" stages, I've been a fan of those smart chargers for years, my batteries seem to last longer with them. The last stage is maintenance, so I'll just leave it connected over the winter. All in all I like it a lot. I'm pretty sure my old Guest unit failed while running and charging simultaneously, I had it for years but this was the first time I'd forgotten to stop charging before running the engine. But I've seen varying opinions on whether that's possible or probable. Regardless, I will never charge and run simultaneously again, just in case. Word to the wise... ... show more
Reviewed in the United States on September 16, 2021 by TW
    • Good condition
Pattern Name: Charger Style: 12/24V, 20 Amp, 2 Bank
Good product was excellent condition for being a used one will definitely buy again
Reviewed in the United States on January 29, 2026 by Brett Dunlap
    • 3 gang battery charger
Pattern Name: Charger Style: 12/24/36V, 20 Amp, 3 Bank
The unit was quite easy to install and has performed well.
Reviewed in the United States on September 13, 2025 by Robert M. Saindon
    • Easy to use
Pattern Name: Charger Style: 12/24V, 8 Amp, 2 Bank
Easy to install, easy to use. Lets see how it holds up.
Reviewed in the United States on March 1, 2026 by J J
    • Customer service was excellent!
Pattern Name: Charger Style: 12/24/36V, 20 Amp, 3 Bank
Review Image by Tom T
I bought this unit in May of 2022. This unit was used to maintain two batteries to a trolling motor and one battery for the boat gas motor. After a year and a half of use, one of the 3 banks stopped maintaining/working. I went on Promariners website and followed directions for a warranty claim. It is warranted for three years. I forwarded them a copy of my Amazon receipt along with a picture of the serial number. Within about 24 hours they said they were shipping me a new unit. As long as a company stands behind their product when there is a problem, I will stand behind that company and support their product. I did install the new unit this past weekend (3/30/24) and it is working perfectly. I will add that the unit was very easy to install. ... show more
Reviewed in the United States on April 2, 2024 by Tom T

Can't find a product?

Find it on Amazon first, then paste the link below.
Checking for best price...