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Nautilus

MotoMaster Nautilus 3-Bank Onboard Smart Battery Charger/Maintainer, Fully Automatic, 15-Amp, 12V

#011-1985-4
MotoMaster Nautilus 3-Bank Onboard Smart Battery Charger/Maintainer, Fully Automatic, 15-Amp, 12V
$239.99
price was $299.99
SaleTop Rated

Sale ends soon October 8, 2025

    Buy Online :
    Pick up at Leduc, AB
    5 In Stock
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    Pick up available 07:00 p.m., Oct 08

    Quantity updated to 1
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    at Leduc, AB
    Aisle 12
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    Nautilus

    Nautilus

    MotoMaster Nautilus 3-Bank Onboard Smart Battery Charger/Maintainer, Fully Automatic, 15-Amp, 12V

    $239.99
    price was $299.99
    Sale ends soon October 8, 2025

    Similar Items

    Product Details

    Add an extra layer of safety when boating with the MotoMaster Nautilus 3-Bank Onboard Smart Battery Charger/Maintainer. This fully automatic battery charger provides convenient charging for 12V, 24V and 36V systems so it’s ideal for use with boats, RVs, trucks or trolling motors. With a generous AC cord, three charging cables, and easy-to-read LED indicators, the water-resistant Nautilus is an efficient and safe way to charge your batteries.

    • Suitable for all 12V lead-acid battery types, including deep-cycle, AGM and gel

    • Fully automatic, microprocessor-controlled 5 step charging process ensures a safe, fast and thorough battery charge

    • Sequential charging delivers up to 15 amps to each bank in 15 minute intervals to optimize charging time

    • LED indicators show battery type, charging status, reversed connections and aborted charge

    • Float mode monitoring automatically maintains optimum battery charge in storage without overcharging

    • Rugged design, water and dust-resistant for durability with IP65 rated construction

    • Multiple safety protections, including reverse polarity, short circuit, overheat and more

    • Integrated mounting points for permanent installation

    • Three sets of 6-foot (1.8 m) battery cables with 3/8” ring terminals, and a 6-foot (1.8 m) AC cord

    Part Number CT053
    Accessories List No Accessories Included
    Advanced Features Automatic Shutoff, Battery Charge Indicator, Battery Desulphation, Float Mode Monitoring, Over-Charge Protection, Over-Current Protection, Overheat Protection, Reverse Hookup Protection, Reverse Polarity, Spark-Proof, Thermal Overload Protection, Trickle Charge, Water Resistant, Weather Resistant
    Assembled Height (cm) 8.89 cm
    Assembled Height (ft) 0.29 ft
    Assembled Height (in) 3.50 in
    Assembled Length (cm) 33.02 cm
    Assembled Length (ft) 1.08 ft
    Assembled Length (in) 13.00 in
    Assembled Weight (kg) 1.02 kg
    Assembled Weight (lb) 2.25 lb
    Assembled Width (cm) 26.67 cm
    Assembled Width (in) 10.50 in
    Assembled Width (mm) 266.70 mm
    Battery Voltage Compatibility 12V
    Certifications CEC, ETL Listed, UL Listed
    Charge Control Smart Multi-Stage
    Charge Time (Hr) 4 h
    Charging Rate Modes Auto
    Cord Length (cm) 182.88 cm
    Cord Length (ft) 6.00 ft
    Cord Length (in) 72.00 in
    Crank Assist Amperage (a) 0 A
    Display Type LED
    Input Voltage (V) 120 V
    Maximum Temperature (°C) 60.00 °C
    Maximum Temperature (°F) 140.00 °F
    Minimum Temperature (°C) -30.00 °C
    Minimum Temperature (°F) -22.00 °F
    Output Amperage (amps) 15 A
    Package Depth (cm) 33.02 cm
    Package Depth (in) 13.00 in
    Package Height (cm) 6.35 cm
    Package Height (in) 2.50 in
    Package Weight (kg) 1.02 kg
    Package Weight (lb) 2.25 lb
    Package Width (cm) 26.67 cm
    Package Width (in) 10.50 in
    Primary Colour Blue
    Primary Material Plastic
    Vehicle Type Compatibility Boat

    Our return policy

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    Warranty

    This product carries a 3 year exchange warranty redeemable at any Canadian Tire store.

    User Manual

    View user manuals and additional product information

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    Reviews

    Rating Snapshot

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    7 reviews with 5 stars.
    0 reviews with 4 stars.
    0 reviews with 3 stars.
    0 reviews with 2 stars.
    2 reviews with 1 star.

    Overall Rating

    4.1
    3 out of 5 (60%) reviewers recommend this product

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    1 to 5 of 9 Reviews
    1 – 5 of 9 Reviews

    Bonne achat

    a year ago
    Excellent achat fait la job
    Helpful?

    absolute junk!! don't waste your money

    a year ago
    this charger has been junk since day one in my boat. over the course of 2 years I have put 3 pairs of trolling motor batteries in as I would have one stone dead every few months. kept replacing batteries as one of the 2 would fail a load test Instantly. finally discovered the one bank on this charger is killing them! put it on a brand new battery overnight and was stone dead by morning, so instead of charging, its killing it! and good luck trying to get a new one from Canadian Tire no help at all👎

    No, I do not recommend this product.

    Helpful?

    Nice marine battery charger

    a year ago
    Works great for my boat batteries. Easy install and fully sealed. I made the cables a little longer to reach all my batteries and charger still works no issues.
    Helpful?

    Good charger/maintainer for multiple batteries

    2 years ago
    Works great. I feel confident it will work in a humid boat environment and safely recharge multiple batteries at various intervals, switching from one to the next.
    Helpful?

    Battery charging

    2 years ago
    Great shop system, allows me to parallel multiple same size batteries while charging other batteries on other charge channels

    Yes, I recommend this product.

    Helpful?
    1 – 5 of 9 Reviews

    Questions

    1 - 10 of 10 Questions

    Q: do you have to disconnect the 2 trolling batteries that are in series for 24v before charging

    2 years ago
    3 Answers

    A: No you do not need to disconnect your 24V bank. Each charger lead is connected to each individual battery and charges each as a standalone 12V battery.

    2 years ago
    Helpful?

    Q: Would two batteries connected in parallel be treated as one battery or would you treat as two when connecting?

    2 years ago
    2 Answers

    A: Treat as 2 

    2 years ago
    Helpful?

    Q: the specs say this will charge 24V is this true

    2 years ago
    2 Answers

    A: Sorry not sure but if the specs say it will I would trust that specs are right. 

    2 years ago
    Helpful?

    Q: Does this charger remember it's settings when powered off? If I set it to STD batteries, and after a day on the water, can I just plug it in, and will it power up in STD mode? Or will it revert to the Default of AGM and overcharge the STD batteries?

    2 years ago
    2 Answers

    A: The charger retains the last selection in memory (for each bank) if/when power is disconnected. So you only need to set it once (or again if you change battery type sometime in the future).

    2 years ago
    Helpful?

    Q: Is this charger 15 amp x 3 or combined between the 3 outputs?

    3 years ago
    2 Answers

    A: It sequentially charges the batteries. So in a sense it is not truly 15amp x3 as it does not charge the three batteries at once. Despite this, I have been happy with the performance of the charger in my boat as it gets the three batteries topped off overnight.

    3 years ago
    Helpful?

    Q: What do you plug the charger into if it's an on-board...does it connect to the boat motor or solar panel ???

    3 years ago
    2 Answers

    A: You need to plug it into a standard 110v outlet. I plug it in after the boat is on the trailer back at the cabin.

    3 years ago
    Helpful?

    Q: I own this charger and my voltmeter is showing 16 volts at times. From what I read online this is to high. Is there something wrong with the charger? I have 2 different voltmeters and they both show 16 volts so it is not a faulty meter.

    2 years ago
    1 Answer

    A: Up to 16V is normal in the Standard battery setting to ensure optimal battery performance.

    2 years ago
    Helpful?

    Q: Si j’utilise seulement 2 blocs ,est-ce que ça fonctionne? La durée de la charge change tu ? 

    2 years ago
    Translate with Google
    1 Answer

    A: (Traduction par Google Translate....) Oui, vous ne pouvez utiliser que 2 banques et laisser la 3ème banque vide. Le temps de charge sera plus rapide avec seulement 2 batteries au lieu de 3.

    2 years ago
    Helpful?
    Translate with Google

    Q: Two questions - 1) If I have #010-3199-6 Motomaster Nautilus Group Size 31 Deep Cycle (100 AH) batteries connected, what battery type is that as far as this charger is concerned? I assume they are a STD battery type for this charger?

    2 years ago
    1 Answer

    A: Yes, choose the STD setting for this battery.

    2 years ago
    Helpful?

    Q: Does the charger have temperature compensated maximum voltage ?  Also, if I only have 2 batteries, will the charger just skip the 3rd battery or will it still stay on that 3rd slot for 15 minutes before sequentially moving on to the next battery?

    3 years ago
    1 Answer

    A: This charger does not have temperature compensation. You program each bank for battery type (Standard, AGM, GEL or No battery). If you choose No battery, it will skip that bank altogether. Feel free to peruse the instruction manual available in the Additional Info box.

    3 years ago
    Helpful?
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