Unique Products for Your Boat
  • Sterling Power ProAlt-C - 130A Alternator to Battery Charger

    $446.00 $379.10


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    For those disinclined to open up an alternator and tap into the field wires, the Sterling Power ProAlt-C can be an easy to install alternate solution. When looking for optimal charging performance we strongly urge that your first choice be a true external voltage regulator, but for those who have ECU controlled alternators, or engines still under warranty, the ProAlt-C is a great fit.

    The Sterling Power ProAlt C is effectve, simple and fast to install. It transforms the output of your alternator into a sophisticated multi-stage battery charger resulting in faster and more complete charging of your battery bank(s). The ProAlt C is fitted between the alternator and the battery and, unlike conventional alternator boosters, requires no modification / interference with the alternator whatsoever - therefore, bypassing any ECU or warranty restrictions. The ProAlt C optimizes the available output of the alternator and converts the output to a 4 stage battery charger similar to using an external voltage regulator.

    • Quick and easy installation
    • Integral split charge facility can charge a start battery
    • No alternator modification required
    • Multiple alternator input possible
    • Intalls in place of a standard alternator to battery isolator
    • Always ensures start battery is properly charged, but also prevents the starting battery from being overcharged and damaged
    • Battery and alternator temperature sensing
    • Battery type selectable
    • Start battery fail safe

    • Input: Alternator
    • Output: 12 VDC, 130 Amps
    • Dimensions: 11"L x 8" W x 3" D
    • Weight: 5.5 lbs.