[{"id":465271849216,"handle":"all","title":"All Products","updated_at":"2026-06-11T07:17:52-04:00","body_html":"","published_at":"2025-11-13T06:21:51-05:00","sort_order":"best-selling","template_suffix":"all-products","disjunctive":false,"rules":[{"column":"variant_price","relation":"greater_than","condition":"0.00"},{"column":"variant_price","relation":"less_than","condition":"4600.00"}],"published_scope":"global"},{"id":418011218176,"handle":"best-selling-collection","title":"Best selling products","updated_at":"2026-06-11T07:17:52-04:00","body_html":null,"published_at":"2024-04-24T09:08:18-04:00","sort_order":"best-selling","template_suffix":null,"disjunctive":false,"rules":[{"column":"variant_price","relation":"greater_than","condition":"0"}],"published_scope":"web"},{"id":431287468288,"handle":"boat-show-special","title":"Boat Show Special","updated_at":"2026-06-11T07:17:52-04:00","body_html":"","published_at":"2024-10-10T11:02:10-04:00","sort_order":"manual","template_suffix":"","disjunctive":false,"rules":[{"column":"vendor","relation":"not_equals","condition":"Rainman Watermakers"},{"column":"vendor","relation":"not_equals","condition":"Epoch Batteries"}],"published_scope":"global"},{"id":418679456000,"handle":"electrical","title":"Electrical","updated_at":"2026-06-11T09:25:29-04:00","body_html":null,"published_at":"2024-05-02T16:04:44-04:00","sort_order":"best-selling","template_suffix":null,"disjunctive":false,"rules":[{"column":"tag","relation":"equals","condition":"Electrical"},{"column":"variant_inventory","relation":"greater_than","condition":"0"}],"published_scope":"web"},{"id":418686271744,"handle":"electrical-accessories","title":"Electrical - Accessories","updated_at":"2026-06-10T17:23:08-04:00","body_html":null,"published_at":"2024-05-02T19:33:52-04:00","sort_order":"best-selling","template_suffix":null,"disjunctive":false,"rules":[{"column":"tag","relation":"equals","condition":"Electrical | Accessories"},{"column":"variant_inventory","relation":"greater_than","condition":"0"}],"published_scope":"web"},{"id":418705146112,"handle":"electrical-dc-to-dc-converters","title":"Electrical - DC to DC Converters","updated_at":"2026-06-10T01:45:38-04:00","body_html":null,"published_at":"2024-05-03T07:04:44-04:00","sort_order":"best-selling","template_suffix":null,"disjunctive":false,"rules":[{"column":"tag","relation":"equals","condition":"Electrical | DC to DC Converters"},{"column":"variant_inventory","relation":"greater_than","condition":"0"}],"published_scope":"web"},{"id":418011185408,"handle":"new-collection","title":"New products","updated_at":"2026-06-11T07:17:52-04:00","body_html":null,"published_at":"2024-04-24T09:08:17-04:00","sort_order":"created-desc","template_suffix":null,"disjunctive":false,"rules":[{"column":"variant_price","relation":"greater_than","condition":"0"}],"published_scope":"web"}]
["Brand_Dolphin Charger","Electrical","Electrical | Accessories","Electrical | DC to DC Converters"]
Use this bar to show information about your cookie policy.
Description
DC-DC Converter - 24/48V - 15A
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.
So much better than the rubber ones I took off, easy install!
Spreader Boots
Daz Jensen
Where Have You Been All My Boating Life?
What a great little piece of tech - I don't know how we got by without it in the past. No more guessing how full the holding tank is or having to clean icky tank senders. This little bluetooth RADAR sending unit mounts on top of the tank and connects wirelessly to our Victron Cerbo.
Setup is super easy, push the button on the unit so it can calibrate to the tank then enable bluetooth and set up your rank dimensions on your Cerbo. It's as easy as that.
We've had it installed and running for about two weeks now and couldn't be more pleased (We like it enough that I ordered a second one for our water tank.)
Lots of wiring - no leaks! Be sure to run ALL the wires through BEFORE completing the run!
Seaview White Plastic Vertical Cable Seal f/Multiple Wires Up to 10.6mm/0.5"
Ari Storch
"Currently" super happy.
Installed on Yanmar 4JH57 engines with Zeus Controllers - HOLY WOW power. Losing some power at top end but overall very satisfied. Will do a long term review later. Talk about power - hope to never need my generator again!