Battery backup

Discussion in 'Trucking Electronics, Gadgets and Software Forum' started by aramil248, Feb 14, 2019.

  1. aramil248

    aramil248 Road Train Member

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    So I have learned that I need to get a battery backup so everytime the truck starts it doesn't murder stuff plugged into the inverter. Unsure which one to get. What happens is that when the truck starts up the inverter resets turning off anything plugged into it. So need a backup to keep giving power until the inverter starts providing it again
     
  2. uncleal13

    uncleal13 Road Train Member

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    I had a 120 volt refrigerator, if it happened to attempt to start at the same time as I started the truck, this would create a brown-out condition off the inverter causing the starter circuits in the fridge to burn out.
    So I got into the habit of shutting off the inverter, start up the truck, then turn the inverter back on.
    A better solution I have now, I use a Maxwell Engine Start Module. Works great, as the Maxwell supplies all the power the starter needs, there is no low voltage condition to bother the inverter.
     
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  3. ast26909

    ast26909 Medium Load Member

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    A UPS is certainly faster and cheaper solution, I have always used APC brand I have several in the house they work well. Check out this one from Amazon

    https://www.amazon.com/APC-Sinewave...950&s=gateway&sprefix=ups,sporting,211&sr=8-6
     
  4. aramil248

    aramil248 Road Train Member

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  5. ast26909

    ast26909 Medium Load Member

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  6. aramil248

    aramil248 Road Train Member

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    think it's 1500
     
  7. ast26909

    ast26909 Medium Load Member

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    You would need the big one that I link to.
     
  8. flood

    flood Road Train Member

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  9. STexan

    STexan Road Train Member

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    I think you’ll find the money on a UPS wasted. They are only good for a limited number of switches and being on a noisy inverter with lots of voltage drops and surges will wear it out fast. But I could be wrong. I’m basing my comment on past experiences in a building with very frequent minor voltage changes due to huge draws on the system at machine startups. We were lucky if one lasted 3 months. But they may have improved UPSs in the past 10 years.
     
  10. Ridgeline

    Ridgeline Road Train Member

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    TURN OFF YOUR INVERTER BEFORE YOU START YOUR TRUCK.

    The inverter is not made for that abuse and this is one reason why fridges crap out.

    Smart recommendation.

    if you don't want to do that, then follow this solution
    I use them on most of the trucks now, they work well, no more dead batteries or electrical problems.

    Don't put a UPS in line with an inverter, it isn't made for this and can cause more problems, even when a few people swear they won't - they do.
     
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