Simplicity rules on a cruising boat and now distributing power from your ships alternator to your starting and house battery banks just got simplified with Sterling Power's ProSplit-R Zero Voltage Drop battery Isolator.  This one simple device will make sure your alternator is charging both your starting and house battery fully and then separates them once charging is complete. 
ProSplit-R Zero Voltage Drop Battery Isolators
Intelligent Alternator Power Distribution System


This product uses a micro processor to monitor the multiple battery banks which are to be charged by an alternator.  It ensures the batteries are all charged in conjunction with each other and prevents any back feed through the device in the event of high loads on one battery bank.  The system also has the ability to disconnect the alternator and individual battery banks in the case of alternator problems or other power items in the system. It does all this and still offers only a max voltage drop of less than 0.01 volt!
 
    • “Zero Volt Drop” says it all. The ProSplit-R battery Isolator is generations ahead of any battery isolator on the market today.
    • Zero Volt Drop means no heat due to current induced voltage drop.
    • Microprocessor control means the ProSplit-R can monitor the charging needs of the auxiliary batteries separately from the engine battery. Doing so allows the ProSplit-R to permit charging of the auxiliary bank at a higher rate without affecting the other batteries in the same system.
    • Distributes power according to need.
    • Individually isolates a battery bank immediately upon detection of reverse feed to prevent discharge.
    • Isolates all except the main battery bank in the event of high load discharge.
    • In the event of alternator &/or regulator failure the ProSplit R will disconnect input to prevent batteries from overcharge.
    • It isolates any batteries where high voltage is present, for example, caused by a separate battery charger.
    • An LED display shows status of all channels, whether in use or not, and provides alarm status information.
    • An Industrial rating capable of sustaining massive overload conditions.
    • A Fail-safe; In the event of device failure, alternator and engine start batteries remain connected.
    • IP66 waterproof rating.
    • An Integrated current limiting feature to prevent overload and short circuit.
    • An ’Ignition on’ sense connection.
    • All these features result in a shorter charge time than ever previously available when using a battery isolator.





  • Available in 12 volt, 1 alternator, 2 batteries, 120, 180 and 250 amp.
  • Available in 12 volt, 1 alternator, 3 batteries, 120, 180 and 250 amp.
  • Available in 12 volt, 2 alternators, 4 batteries, 130 amps each alternator.
  • Available in 24 volt, 1 alternator, 2 batteries, 60, 100, 150 and 240 amp.
  • Available in 24 volt, 1 alternator, 3 batteries, 60, 100 and 150 amp.
  • Available in 24 volt, 2 alternators, 4 batteries, 80 amps each alternator.

  • Download ProSplit-R Summary Data Sheet Here

    Download ProSplit-R Installation Manual Here

    Please call 619-609-3432 or email us to purchase a ProCharge Ultra Battery Charger until we get this item added to our shopping cart.


    ProSplit-R Zero Voltage Drop Isolators
    Model Info and Pricing


      Model  
    Volt
     

    Max Alt
      Amp 
    Number
    or Charge
    Outlets
    Size
    L x W x H
    in Inches
     

     Weight
    in pounds
     


     Cost 
    PSR122
    12v
    120A
    2
    6 x 3.2 x 4.8
    1.32
    $152
    PSR182
    12v
    180A
    2
    6 x 3.2 x 5.6
    1.54
    $180
    PSR252
    12v
    230A
    2
    6 x 3.2 x 6.2
    2.2
    $199
    PSR123
    12v
    120A
    3
    6 x 3.2 x 5.2
    1.98
    $170
    PSR183
    12v
    180A
    3
    6 x 3.2 x 7.0
    2.20
    $217
    PSR253
    12v
    230A
    3
    6 x 3.2 x 8.8
    2.86
    $246
    PSRT134
    12v
    twin 130A
    4
    6 x 3.2 x 11.8
    3.96
    $338
    PSR62
    24v
    60A
    2
    6 x 3.2 x 4.8
    1.32
    $157
    PSR102
    24v
    100A
    2
    6 x 3.2 x 5.6
    1.54
    $186
    PSR152
    24v
    150A
    2
    6 x 3.2 x 6.6
    2.64
    $205
    PSR242
    24v
    240A
    2
    6 x 3.2 x 10.0
    3.74
    $241
    PSR63
    24v
    60A
    3
    6 x 3.2 x 6.0
    1.54
    $176
    PSR103
    24v
    100A
    3
    6 x 3.2 x 7.0
    2.20
    $227
    PSR153
    24v
    150A
    3
    6 x 3.2 x 8.8
    2.86
    $252
    PSRT84
    24v
    twin 80A
    4
    6 x 3.2 x 11.8
    3.96
    $340


    This product uses a micro processor to monitor the multiple battery banks which are to be charged by an alternator, it ensures the batteries are all charged in conjunction with each other and prevents any back feed through the device in the event of high loads on one battery bank. The system also has the ability to disconnect the alternator and individual battery banks in the case of problems caused by the alternator or other power items in the system. It does all this and still offers only a max voltage drop of less than 0.01 volt, much less than any so called 0 volt drop mossfet / diode system. Many so called 0 volt drop systems simply do not come close. The Mastervolt battery mate is as high as 0.6 volts at full power (where it counts) while the Sterling is at 0.09 volts under full load conditions, a 600% performance improvement over the “Mastervolt” unit.