SKU: 36975186874

Dolphin Charger DC-DC Converter - 12/36V - 20A [99204]

$351.45 $390.50
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Description

Dolphin Charger DC-DC Converter - 12/36V - 20A [99204]DC DC Converter 12 36V 20A Your boat has a 12V alternator, and you need to charge a 24V or 36V battery on the run? Dolphin has the solution. Our boosters are true DC DC chargers with a 3 stage smart charge feature. Compatible with 4 different technologies, including Gel, AGM, or Lithium LIFEPO4. Dolphin booster is the perfect choice to charge your bow thruster or trolling motor batteries! Flexibility & Versatility BOOSTER units are designed to charge

DC-DC Converter - 12/36V - 20A

Your boat has a 12V alternator, and you need to charge a 24V or 36V battery “on the run”? Dolphin has the solution. Our boosters are true DC/DC chargers with a 3-stage smart charge feature. Compatible with 4 different technologies, including Gel, AGM, or Lithium LIFEPO4. Dolphin booster is the perfect choice to charge your bow thruster or trolling motor batteries!

Flexibility & Versatility

BOOSTER units are designed to charge a 24V, 36V, or 48V auxiliary battery from a single 12V or 24V power system, ideal for new installations or for updating older systems. Thanks to recharging during navigation, auxiliary batteries are always available. No need to wait until you’re connected to the shore to recharge. This product range extends from 12/24V (charging at 30A), 12/36V (charging at 20A) up to 24/48V (charging at 15A).

Efficient Power Conversion

Small is beautiful: our engineers have made it compact. BOOSTER is only half the size of a conventional charger of equivalent power!

Faster Charging Times

BOOSTERS are intelligent marine battery chargers featuring an advanced and unique 4-stage charging program. This reduces charging time by 50% compared with charging from a basic alternator. with different battery chemistry settings (Lead, Gel, AGM, Lithium, LifeFO4).

Compatibility with Different Voltages

BOOSTERS are smart battery chargers featuring four different battery profile, Lead, Gel, AGM, and Lithium LifeFO4.

Protection Features

BOOSTER units include automatic protection against battery source drainage, over-current, over-voltage and reverse polarity and built-in fuses protections.

As for all other Dolphin® charger products, the BOOSTER’s assembly process includes conformal coating of the electronic board (PCB) to guarantee an extended lifecycle of your battery charger.


Quick Guide (pdf)
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: 36975186874

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4.5 ★★★★★
Based on 1629 reviews
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Sharon
Alexandria, US
★★★★★ 5
Good Coin / Keys Tray
Color: Midnight Black, Size: 7.5" x 5.5" x 1.5"
Loved this organizer so much that I ordered one for my Grandson for Christmas. Coins and keys don't make noise when dropped into the tray and it protects the wood of our dresser. Looks very nice too.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 5, 2026
A
Verified Purchase
Amazon Customer
Los Angeles, US
★★★★★ 5
LOVE IT!
Color: Whiskey Barrel Brown, Size: 10.5" x 7" x 1.5"
Excellent quality! Love the color too. Make sure and purchase the largest size. Makes a nice gift.
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Reviewed in the United States on April 19, 2026
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Verified Purchase
Michael
Louisville, US
★★★★★ 5
Quality as promised.
Color: Rustic Montana, Size: 10.5" x 7" x 1.5"
Nice ! I am very pleased with this product. I like that its American made. The size is actually just right for what I needed. I will buy other products from this company when ready.
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Reviewed in the United States on February 11, 2026
S
Verified Purchase
Shayman King
Louisville, US
★★★★★ 4
Great item, BUT…
Color: Bootlegger Brown, Size: 10.5" x 7" x 1.5", Color: Bootlegger Brown, Size: 10.5" x 7" x 1.5"
Do I love it? Yes. Is it well made? It certainly appears to be. Is the leather thick? Yes, I’d say definitely thick and sturdy. Do I like the color (Bootlegger Brown)? Of course I do, it’s gorgeous. It seems very well made. The corners are secured with black fasteners, which I think are going to better than the buttons in the long run that I’ve seen on others. It’s was this brand, or Hide and Drink for me. I went with these guys because it’s U.S. made, and hopefully American sourced leather. I bought the Large. My concern was that the XL might be too large for my nightstand. I measured it out and everything. However, I was not counting on the length and width to be measured from the end of the pinched corners, so I was a little disappointed about the size of the useable surface area. It’s not a big deal, but I wish that I’d have just spent the extra $5 and got the XL. If I we’re to get another, I definitely go with the XL unless you just want something on the smallish side, but still I suspect that they are larger that what most others are offering. At least these guys give you a choice of options.
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Reviewed in the United States on March 31, 2023
A
Verified Purchase
Amazon Customer
Dallas, US
★★★★★ 5
Valet Tray Worth the Price
Color: Bootlegger Brown, Size: 10.5" x 7" x 1.5"
Product well packaged and is exactly as advertised. Great quality and workmanship. Bought for my husband and he really likes it.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 12, 2026

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