MFJ 4416 - Super Battery Booster - New Start Price USD 139.95 Current Price USD 139.95 Time Left - Bid Count 0 Buy It Now Price - Reserve Price - Start Time Sunday, August 31, 2008 End Time Wednesday, September 10, 2008 Location Longview, Texas See more about 'MFJ 4416 - Super Battery Booster - New' Description SquareTrade © AP6.0 MFJ 4416 -  SUPER   BATTERY    BOOSTER This is a new in the box  MFJ 4416 Keeps your transceiver operating at full efficiency and performance by eliminating low or marginal voltages in the mobile environmentTodays compact 100-watt HF transceivers are designed to operate from about 12-16 volts,with output signal distortion, output power problems, and transceiver reset often occurringwhen voltage drops below 12 volts.In the mobile environment, low voltage is caused in two ways: First - even lowresistance DC wiring can result in a noticeable voltage drop.  For a 100-watt transceiverwith a 20-amp typical current requirement, just 1/10th of an ohm resistance in your DCcable and connectors results in a 2-volt drop! And second - when you turn your car off, the battery voltage drops from around 13.8volts to close to 12 volts after a short period of time. Couple this with any voltagedrop in the cables, and you have a problem.  The MFJ-4416 Super Battery Booster eliminates low voltage problems by boostinginput voltages as low as 9 volts up to the desired 13.8 volts at up to 25 amps peakwith a typical efficiency of close to 90%. It is compact at just 73/4Wx4Hx21/8D” MFJ-4416 includes Anderson PowerPoleTM connectors and high-current 5-way binding postsfor both the DC input and regulated output. An internal 30-amp input fuse protects the unit fromexcess output current demands.There are also selectable limits on the minimum voltage that the unit will accept: 9-volts, 10-volts (default), and 11-volts.This protects you from over-discharging a battery and possibly damaging it.  MFJ-4416 also includes output over-voltage crow-bar protection should regulation be lost.There is an RF sampling port which can be connectedto your transceivers transmission line with a UHF-T connector.When this feature is enabled, the MFJ 4416 is bypassed unless RF is sensed so noregulator switching efficiency penalties are incurred during receive.Another feature is a user-adjustable output voltage controlwhich lets you set the output voltage anywhere between 12- and 13.8-volts.When setting the output at 12-volts, input voltages greater than 12V will passthrough, but the efficiency of the regulator is higher. And lower input voltage meansyour transceiver will run cooler!Typically save over 30 watts in heat dissipation during transmit, and even 3-4 wattsduring receive.  So it can actually be good to let the voltage sag to 12 volts, then let theMFJ-4116 protect you from lower voltages.Anderson PowerPoleTM CablesI have a lot of radio related items in my Ebay store, please check it out.  Thank you Place a Bid!