Bells CB Radio    
    Bells CB Phone Number             Home Button             FaceBook Chat Chat    

  Orders with radio work are delayed 7 - 14 days  

 PowerMax Converters

Powermax PM-3

Click for larger image

120 Amp switching power supply


Download Manual 

Power Max Converters


  • Built-in Smart Charger and Single Fixed output modes
  • Reliable, Safe and Clean AC/DC Power
  • Reverse Polarity, Overload and Thermal Protection
  • 2 Year Warranty




  • Fixed output mode voltage can be set
    between 13.0 Vdc to 16.5 Vdc
    This is the Factory Settings with the Smart Charging mode 'ON' with the Output Voltages preset to 14.6V / 13.6V and 13.2V. Since 99% of Radio operators want this turned OFF , we do so at Bells CB before shipping and set it to a
    Fixed output mode 14.1 VDC.
    DESCRIPTION: This mode provides an automatic charging system in three steps. 1. A fast charge to bring a good, drained battery
    back up to full voltage rapidly ("Boost"). 2. A standard charge to bring the battery up to a full charge at a safe rate to prolong the life of the
    battery and provide power to run 12V lighting and appliances in the vehicle/device ("Normal"). 3. A trickle charge to keep the battery fresh
    during times of load inactivity ("Storage"). The charger automatically changes modes to accommodate changes in conditions. The chart
    below is for reference only, voltages may vary


3-stage voltage chart

Switch and voltage adjust location

Free Shipping
... PowerMax
120A power Supply...
Powermax Label 

Contact Button

Bells Phone Number