StoreDeal.ai store
Shop
  • Deals
  • Deal checker
  • Black Friday
  • Buying guides
  • Brands
  • Stores
Travel
  • Flight deals
  • Hotel deals
Company
  • Research
  • Press
  • Use in AI assistants
  • Contact
  • deal.ai apps
Black Friday 2026
  • Walmart
  • Best Buy
  • Target
  • TVs
  • Laptops
  • Headphones
  • Apple
  • Gaming
  • Vacuums
  • Kitchen
  • Toys
  • Smartwatches
  • Tablets
  • Furniture
  • Mattresses
© Deal.ai Inc.·2222 Ponce de Leon Blvd, Miami, FL 33134·support@deal.ai
TermsPrivacy
Deal.ai
S
Smart Dual Battery Isolator for Marine 12V 200A - IP65

Smart Dual Battery Isolator for Marine 12V 200A - IP65

Best price now

$18.00at BAYWATTChecked Nov 10

Prices are checked against each store and labelled with when.

Visit BAYWATT

Ask our agent about this product

It checks today's price at every store, compares the alternatives and answers in about a minute.

Enter to send, Shift+Enter for a new line

Price facts

  • Last seen at $18.00 at BAYWATT on Nov 10.

    • Our take on the Smart Dual Battery Isolator for Marine 12V 200A - IP65

    A solid-state dual battery isolator for marine and RV 12V systems, rated at 200A and sealed to IP65. It uses a microcontroller to connect and disconnect the auxiliary battery based on voltage thresholds, so you don't have to remember a manual switch. Compared with traditional diode isolators, it avoids the voltage drop that can leave auxiliary batteries undercharged, and it handles higher current than most relay-based kits. It suits boat owners and overlanders who want automatic charging of a second battery without running heavy cables to a dash switch.

    Best forBoat owners with a house and start batteryOverland and RV setups with a second batteryAnyone replacing a diode isolator to cut voltage dropDIY installers who want automatic charging
    Pros
    • 200A continuous rating handles high-output alternators
    • IP65 sealed against water and dust
    • Microcontroller-based switching with adjustable thresholds
    • No voltage drop like a diode isolator
    • Compact solid-state design with no moving parts
    Cons
    • No Bluetooth or app monitoring
    • Instructions can be sparse for the setup menus
    • Not a charger: it only connects batteries, it doesn't condition them
    • Terminals may need larger ring connectors than supplied

    Smart Dual Battery Isolator for Marine 12V 200A - IP65 prices at every store

    • BAYWATTNew

      In stockShips from France · duties may applyReturn policy

      $18.00Checked Nov 10
      Visit BAYWATT

    About the Smart Dual Battery Isolator for Marine 12V 200A - IP65

    This is a smart dual battery isolator for marine use. It is rated for 12V systems and 200A, and has an IP65 protection rating.

    Type
    Smart dual battery isolator
    Application
    Marine
    Voltage
    12V
    Current
    200A
    Protection
    IP65

    Questions and answers

    How is this different from a diode isolator?
    A diode isolator drops voltage across the diodes, so the auxiliary battery sees less charging voltage. This unit uses solid-state switches with negligible drop, so the second battery charges closer to the alternator's output.
    Can it handle a 200A alternator?
    Yes, it is rated for 200A continuous. Check that your alternator's output and cable gauge match the rating, and fuse the circuit appropriately.
    Does it work with lithium batteries?
    It can, but you need to set the voltage thresholds to suit lithium's higher resting voltage. The unit is configurable, so check the manual for the setting procedure.
    Is it waterproof?
    It carries an IP65 rating, meaning it is protected against dust and water jets. It is not designed for continuous immersion.
    What's in the box?
    The isolator unit and mounting hardware are included. Battery cables and fuses are not, so you will need to supply those for your installation.
    Where is the Smart Dual Battery Isolator for Marine 12V 200A - IP65 cheapest?
    At BAYWATT, for $18.00, as of our latest check.

    More battery isolators

    • R
      REDARC Dual Sensing Smart Start Battery Isolator - 12V 200A
      REDARC Dual Sensing Smart Start Battery Isolator - 12V 200A
    • R
      REDARC SBI212D - Dual Sensing Smart Start Battery Isolator - 12V 200A
      REDARC SBI212D - Dual Sensing Smart Start Battery Isolator - 12V 200A
    • 1
      12V 140A Dual Battery Isolator Kit for RV UTV ATV Watercraft Car
      12V 140A Dual Battery Isolator Kit for RV UTV ATV Watercraft Car
    • N
      Newmar Bi-100 12V Battery Integrator
      Newmar Bi-100 12V Battery Integrator
    • R
      REDARC Electronic Dual Battery Isolator (SBI12)
      REDARC Electronic Dual Battery Isolator (SBI12)
    V
    Victron Energy Cyrix-ct 12/24V Intelligent Battery Combiner
    Victron Energy Cyrix-ct 12/24V Intelligent Battery Combiner
  • B
    Blue Sea Systems Automatic Charging Relay (ACR) 7610
    Blue Sea Systems Automatic Charging Relay (ACR) 7610
  • V
    Vevor Battery Isolator Kit 12V 140A Dual Battery Isolation Kit
    Vevor Battery Isolator Kit 12V 140A Dual Battery Isolation Kit