Use the following links to register your product or to return your Product for warranty consideration.

 v   General Warranty Information


Each product is warranted, to the original consumer, to be free from defects in materials and workmanship under normal use and service. Since different models are covered for varying amounts of time, please refer to your owner’s manual for the warranty coverage timeframe. For purposes of this warranty, the "original consumer" is defined as the consumer who purchases the product directly or the purchaser who first uses the product after its initial installation by a reputable installer or OEM. ProMariner will at its discretion, repair any defects in material or workmanship or replace the product free of charge.

The following conditions apply:

  • Proof of purchase or Manufacture date will be used to determine warranty timeframe
  • Warranty void if unauthorized repairs attempted
  • Deep water damage not covered under warranty
  • Customer is responsible for shipping to ProMariner

Purchase or other acceptance of the product shall be on the condition and agreement that ProMariner SHALL NOT BE LIABLE FOR INCIDENTAL OR CONSEQUENTIAL DAMAGES OF ANY KIND. (Some states do not allow the exclusion or limitation of incidental or consequential damages, so the above limitations may not apply to you.) This warranty is made in lieu of all other obligations or liabilities on the part of ProMariner. ProMariner neither assumes nor authorizes any person for any obligation or liability in connection with the sale of this product.

To make a claim under warranty, please visit the "Warranty Claim ­ Product Return Instructions (RMA)" tab and follow the instructions. If found to be a warrantable issue, Promariner will return the repaired or ship a replaced product, freight paid, to the customer. This warranty gives you specific legal rights, and you may also have other rights, which vary from state to state. This warranty is in lieu of all others expressed or implied.

Factory Service Center & Technical Support
N85 W12545 Westbrook Crossing
Menomonee Falls, WI 53051
Tel: 1-800-824-0524

 v   Product Registration

Register Online

To register your ProMariner product online please open, complete and submit the "Online Product Registration" form. Be sure to have your product serial number on-hand as it is required for completion of the form.

> Online Product Registration


Register Manually

To register your ProMariner product manually, please print the downloadable form, fill it out, and mail the form to the address below. Be sure to have your product serial number on-hand as it is required for completion of the form.


Download Product Registration Form

 v   Warranty Claim - Product Return Instructions (RMA)

Warranty Return Procedure

  • First contact a ProMariner technical services representative for technical assistance. If basic troubleshooting efforts do not resolve the issue, please continue the return procedure by clicking on the "Product Return" link below.
  • Click the link pertaining to the product you are returning and complete the form. When completed, click the "Submit Return Information" button
  • A RMA number will be sent to you via email in approximately 1 business day. This RMA number will be the reference number for all communication going forward.
  • Ship the product to ProMariner with the following information;

    • Copy of the email with the RMA number
    • Copy of the proof of purchase

      N85 W12545 Westbrook Crossing
      Menomonee Falls, WI 53051
      Attn: Service Department



  • Freight costs: The customer is responsible for any transportation costs to ProMariner.
  • The RMA is valid for 45 days from the date of issuance. The product must be returned to ProMariner within the 45 days or the RMA may be cancelled.
  • Any product returned without any reference to the RMA number will be returned to the customer.

> Product Return

 v   Product FAQs

General FAQs

Q: How do I know whether to use a waterproof charger or a dry-mount style charger?

A: Waterproof chargers are designed to charge one battery on each of their outputs. They are suitable for small fishing boats like bass boats or center console boats. They are for charging batteries that are not being used while they are charging. Dry-mount chargers are for boats with a shore power connection and AC distribution/breaker panels. They need to be mounted in a dry area where they will not get dripped on or sprayed with water. They can handle heavier capacity batteries and/or charge batteries while they are under load. If you need advice on choosing the right charger, please contact our technical service at        1-800-824-0524 and we can help.

Q: How do I choose the right waterproof charger for my situation?

A: It depends on the batteries you have and how your system is wired. We recommend a charger be sized to about 10% of the total amp-hour capacity of the batteries it will be charging. Do remember you need one charger output for each battery you want to charge.

Q: How do I choose the right dry-mount charger for my system?

A: It depends on the batteries you have and how your battery system is wired. We recommend a charger be sized to about 10% of the total amp-hour capacity of the batteries it will be charging.

Q: Which inverter is right for me?

A1: Pure sinewave inverters: Pure sinewave inverters are better suited for digital electronics, when compared to a modified sinewave inverter, and will ensure proper operation of any digital equipment on board.

A2: Modified sinewave inverters: Modified sinewave inverters can save cost and are robust. But they do not always work to power digital equipment, or induction motors.

Q: How do I know which size inverter I need?

A: To properly size an inverter; add up all of the the wattages of the AC devices that are intended to be powered by the inverter. The inverter wattage has to be greater than the total of the devices to account for losses. Call our technical service at 1-800-824-0524 and we can help.

Q: The box says it will charge 12v/24v systems. Can I charge one battery at 12v and my trolling-motor batteries at 24v with a 2 bank charger?

A: No. The waterproof chargers output 12 volts on each set of leads. With a 2 bank charger you can charge a 24v system by attaching a single set of leads to each 12v battery.

Q: Can my charger be left on for a extended period of time?

A: Yes, If the charger is set for the appropriate battery type. In "Auto-maintain" mode the charger will maintain the batteries at the appropriate voltage levels for longer term storage. **Stored batteries need to be checked at least once a month for safety and to check fluid levels in wet-cell flooded batteries.

Q: How long should it typically take to charge my batteries?

A: This depends on the battery type, condition, age and level of depletion. As a rough estimate, it typically takes 8-14 hours.

Battery FAQs

Q: How do I know what types of batteries I have?

A: The most common types of batteries are:

LEAD-ACID (liquid electrolyte: LEAD-ACID batteries have caps that open and they need to have distilled water added as needed.

AGM (absorbed glass mat): AGM are sealed batteries that don't need maintenance. Some AGM batteries require different charge and float voltages than LEAD-ACID batteries.

GEL (gelified electrolyte): GEL are a special type of sealed battery. Their charging and float voltages are quite different. GEL cannot be charged with LEAD-ACID or AGM batteries. GEL batteries will say GEL on their labels.

Lithium Iron Phosphate (LiFePO4): Lithium iron phosphate batteries are a type of lithium ion rechargeable battery. The benefits over lead-acid, AGM and the more traditional cobalt-based Li-ion batteries are increased power output, faster charging, reduced weight and longer lifetime.

If you're not sure, please call our technical service at 1-800-824-0524 and we can help.

Waterproof Install FAQs

Q: What do I do if I have an unused set of DC wires from the charger?

A: Double up the charger output Bank 1 and Bank 2 wires on your “most used” battery. This would be the “House” or “Trolling Motor” battery. That way they can all sense a battery voltage and the unit will charge properly.

Q: Can I charge a lead-acid battery and a gel-cell battery together?

A: No. Our chargers output voltages for one type of battery for each setting. Since Lead-Acid and GEL batteries charge at very different voltages you cannot charge both types at the same time.

Q: What charger setting should I use for AGM batteries?

A: If your charger has an AGM setting you should use that since it may allow faster charging of your batteries. Most AGM batteries charge fine at the lead-acid setting. We do recommend checking with your specific battery maker to be sure the charger voltages will work with their products.

Q: What should I do to be sure to mount this charger correctly?

A: The charger should be mounted on a hard surface like wood, fiberglass, or starboard to allow proper cooling. Do not mount it on an insulating surface like carpet or fabric. Refer to the installation instructions in the user's manual for proper installation.

Q: Can I mount my charger to my metal, or carbon fiber, boat?

A: No. We do not recommend mounting waterproof chargers directly onto metal, or carbon fiber, hulls. Mount it to a piece of marine grade plywood, or similar material,and use separate fasteners to mount the board to the hull. This will prevent any electrical contact between the hull and the charger.

Q: Can I mount my charger with the writing upside down?

A: No. The unit vents heat through the case. And it is the side "above" the writing that puts out most of the heat. If the manual allows you can mount the charger vertically, or flat, just not with the writing upside down. You want to be sure the unit has access to plenty of fresh air while it is charging.

Trouble-Shooting FAQs

Q: Is there a switch or a fuse on the AC side I can reset?

A: The AC overcurrent protection is inside for the waterproof chargers. If you do not see the Power LED light up when you plug the charger into a known good AC source; please contact technical service at 1-800-824-0524.

Q: My charger is tripping my GFCI circuit breaker on my outside outlet?

A: First, test the GFCI. Plug in another device like a lamp to be sure the GFCI is working correctly. If the GFCI is good please contact our technical service at 1-800-824-0524.

Q: I touched my charger while it was on and it feels really hot. Is that normal?

A: Yes, the charger creates heat changing AC power to DC. It gets warm enough that you can touch the unit, but you could not pick it up and carry it. The unit is internally protected against over-heating and will shut down if it gets too hot inside.

Q: How do I get the fuses apart?

A: Line up the flat portions of the fuse holder and pull straight apart. It has a tight fit to provide a waterresistant connection. If you warm up the the fuse holder slightly, to make the plastic flexible, it pulls apart much easier. If you need to replace the fuse use the same amperage rating as is printed on the fuse holder. If you have any questions, please call 1-800-824-0524 for advice.

Dry-Mount Charger FAQs

Q: What wire gauge do I need to use for my DC connections for my ProNautic P charger?

A: If you are installing a new charger, or upgrading from an older charger, refer to the Blue Seas wire selector guide to choose the correct wire gauge for your system at http://assets.bluesea.com/files/resources/reference/20010.pdf

Q: Can I extend the temp sense probe for the ProNautic P battery charger?

A: You can extend the wire using an in-line phone coupler and then up to 25 feet of RJ12 wire. Do not cut and splice the temp sense lead. If you need more length of wire please call Technical Services at 1-800-824-0524.

Q: My charger shows reverse polarity every time I power it up. What should I do?

A: Check the ATC style fuse(s) on the charger next to the Negative DC output stud and replace if needed. If you require further assistance please call Technical Services at 1-800-824-0524.

Q: The fan is sometimes on and sometimes off. Why?

A: The fans in the dry-mount chargers are temperature controlled. So the fans only turn on when the charger needs to cool itself.

Q: Sometimes when I check the charger almost all the LEDs are off and the Voltage and Current windows are dark and off.

A: In "Auto-Maintain" mode, if there is no current draw, the charger will go into its "Energy Conservation" mode. It shuts down most functions and monitors the battery voltage. If the voltage drops to about 12.8 volts the charger will "wake up" and recharge the batteries to their "Auto-Maintain" profile voltage.

Inverter FAQs

Q: How much battery power do I need to run my inverter?

A: The current output capacity of the batteries has to be greater than the current required by the devices the inverter is powering. A 1000 watt inverter should have at least two group 27 batteries. A 2000 watt inverter would need two group 31 sized batteries. Please contact our technical service at 1-800-824-0524 and we can help with your specific requirements.

Online Resources

  • ProMariner Catalog

  • Mobile Catalog