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Battery Booster!

Discussion in 'Amateur Radio News' started by WJ6F, Jul 20, 2020.

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  1. WJ6F

    WJ6F Ham Member QRZ Page

    If you have a mobile setup you know all too well that battery voltage will drop quickly, especially once the engine is turned off. This is why it is important to have the MFJ Super Battery Booster (MFJ-4416C). This easy to use battery booster will keep your radio running so you don't miss that once in a lifetime QSO. As the voltage drops in your battery, your radio can become distorted or will shut down at the worst possible time. The Super Battery Booster prevents that from happening, allowing you to stay on the air longer.

    MFJ-4416C (1).png
  2. KC1DR

    KC1DR Subscriber QRZ Page

    What is the possibility that this will damage the battery?
    K9GLS likes this.
  3. K2NED

    K2NED XML Subscriber QRZ Page

    just another piece of MFJ magic in a box. Cant think of any reason I would use this in battery operation but suspect there are folks who might ???
    My solar panels keep things topped up as well as voltage meter monitoring....
  4. NU6O

    NU6O Ham Member QRZ Page

    The sun does not shine at night... This is essential piece of gear for field day or any overnight operations. The alternative is expensive LiFePo batteries. It will not damage your batteries, it has a low voltage shutoff. Another use is in mobile operation, where voltage drop is a big issue.
    KN4PHS, KC2YSO and K0UO like this.
  5. NW4GT

    NW4GT Ham Member QRZ Page

    Trade off more current drain to get higher voltage. Never get something for nothing. If the battery is marginal to start with, yes this could hurt the battery by over-discharging it. In normal vehicle operation with a healthy battery and occasional use of the booster, no problem
  6. N1IPU

    N1IPU Ham Member QRZ Page

    I never buy mfj. Its for hams that shop at harbour Freight for tools. I have an old N8XJK booster that works well and I am waiting for West Mountain Radio to release their version of the same. Its on Pre order (thanks covid hoax).

    The more people who buy junk from MFJ the longer it will take for reputable vendors to produce what we need.

    For mobile use I have two 6 volt wet cells in marine boxes in the trunk. I run a larger than stock alternator with a charge adapter. That way when my batteries run down I can still start my vehicle. the Bootser I use for base use in concert with solar. Its old but more efficient than the mfj junk. Running a booster in the car is a bad idea overall. Having a dead battery in the boonies is no fun. Better off spending the money on a roll up solar panel and charge controller. Modern radios run fine on less than 13.8.
    KC1DR likes this.
  7. KA9JLM

    KA9JLM Ham Member QRZ Page

    Is this New news, A new invention ?

    Use it long enough then your automobile may not crank. :oops:

    Most radios do not require 13.8.

    If they do, Many just keep the motor running, They get air conditioning also.
    N1IPU and VE7DXW like this.
  8. AD0AR

    AD0AR Ham Member QRZ Page

    I wanted to go global for battery boosting, make it bulletproof, and all automatic with auto low voltage cutout. The module I use is 100 amps capable loading too.
    Available from 50A to 200A modules you can even parallel if your heart desires.
    I use a single 100 amp 14.7vdc module to power both my Icom 7000 and a SGC SG-500. Quite capable with SSB average loading in the mobile.
    K0UO likes this.
  9. NU6O

    NU6O Ham Member QRZ Page

    The Flux cap units look super nice. What is your experience with them in regard to RFI?
  10. AD0AR

    AD0AR Ham Member QRZ Page

    I can't pick any noise up on the lower HF bands. I got a few minor spurs on 10 meters, but that was quashed with a few ferrites. There's' a few large mylar caps used internally to reduce RFI and no doubt they do their job.
    I have one on my base for battery backup, one in my mobile, and one for portable emergency use. The only spot I had gotten the 10 meter interference was in the mobile. Fantastic items! All built in the good ol' USA too! If I grounded it better the ferrites probably would not even be needed.
    Efficiency is top notch, in my testing it did not get over 105 degrees Fahrenheit while powering my IC-7600 and a SGC SG-500 from my backup battery running RTTY for about 10 minutes at full power.
    K0UO likes this.

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