NOCO Genius Boost GB20 12V UltraSafe Lithium Jump Starter

  • Published on Nov 2, 2015
  • Get the NOCO GB20 at Amazon here ---
  • Autos & VehiclesAutos & Vehicles

Comments • 46

  • Bill Lees
    Bill Lees 2 months ago +1

    I have owned this unit for a little over two years. I purchased it to keep at the cottage to boost the boat battery if required. I have never had to use it. It was charged twice without issues. Recently I attempted to charge the unit, it would not go beyond 25%. I tried another charging cable without any luck. Owned for two years, never used, $100.+ wasted. Do not buy this unit!

    • D G
      D G 17 days ago

      I have one as well, its junk I've never been able to jump a car with it and always had to use a pair of jumper cables or the 110v charger. Total waste of money. Don't even know why I'm still keeping it charged.

    • Real Tool Reviews
      Real Tool Reviews  2 months ago

      Wow that sucks

  • Mark A
    Mark A 4 months ago

    I purchased one at half price on a clearance aisle. I'm concerned I may get less life out of it if it was in the store a long time. It is rated up to 4.0L engines. Have used it to start a 4.0L Nissan Xterra and 5.9L Dodge truck.

  • Andres Rodriguez
    Andres Rodriguez 5 months ago

    How does this work on a push start engine?

  • Shane Hughes
    Shane Hughes 7 months ago +1

    Its too too weak for practical use. This unit is a waste of your money. Buy a 2000 amp instead of a 400 peak. Its only 200 cold cranking amps and car batteries are 500-600 so it won't work for shit

    • D G
      D G 17 days ago

      Yup I wanted money on this it's a total POS!

  • Carlos Negrete
    Carlos Negrete 8 months ago

    Can it be in hot and cold weather if I leave it in my car ?

  • Mark A
    Mark A 10 months ago +1

    It should be noted you normally do not press the red button. That is only for batteries that are totally dead.

    • D G
      D G 17 days ago

      Won't matter anyway this thing is junk and doesn't have enough power to jump a fully dead battery. I actually wasted money on one of these and its failed me every time I needed to jump something.

    • Andres Rodriguez
      Andres Rodriguez 4 months ago

      @Mark A thanks, works great

    • Mark A
      Mark A 4 months ago +1

      The power button

    • Andres Rodriguez
      Andres Rodriguez 5 months ago

      So what do you press if not the red button when trying to jump start?

  • Hoss Phoenix
    Hoss Phoenix 10 months ago

    Quality instructional.

  • CJN
    CJN 11 months ago

    It’s my understanding that this model is meant for a 4.0L engine. Basically a V6. Which to me isn’t a small vehicle in today’s standards. So I would guess this isn’t just meant for small cars and ATVs.

  • Steffen Andersen
    Steffen Andersen 11 months ago

    is the 1000V scale you are on

  • Dennis S.
    Dennis S. Year ago

    Which engine is in the car?

  • Snake Pliskin
    Snake Pliskin Year ago

    Just bought one. Hope it works as well as it looks

  • Carlo B
    Carlo B Year ago

    Thank you very much that video help me a lot!

  • Dan Pecoraro
    Dan Pecoraro Year ago

    Hey man, great video - thank you so much for taking the time and sharing the insight. Quick question - is it okay to just store the battery in your trunk? A bit concerned about hot summer temperatures (reaches out 95 in the Summer months in New York where I live), and just wondering if you thought it'd explode or catch fire? Want to make sure it's ok to store somewhere in the car (trunk) for emergency use. Thanks again - really appreciate it!

    • Mark A
      Mark A 10 months ago

      Manual states the maximum storage temperature is 50 celcius, about 120 farenheight. I got one this winter, I guess I'll have to leave it out of the car in the summer.

  • Robert Sand
    Robert Sand Year ago +1

    Cool thing with these power packs is you can leave it plugged in under the hood. Then you can drive a few miles still if your alternator is burned out

  • InTheNameOfJustice

    Price: One arm, one leg and a wad of money.

    • Mark A
      Mark A 10 months ago

      I just bought one at Tractor Supply for $55.

  • Mr. Ferraro
    Mr. Ferraro Year ago

    Thanks for sharing!!

  • paul tomasetti
    paul tomasetti 2 years ago

    A head to head with hft viking brand and comparable noco model would be reeealy cool! Wink wink. Thank you very much for your time,great job

  • abdullah peer
    abdullah peer 2 years ago

    Hi. What is the song in the beggining?

  • Roy Escobar
    Roy Escobar 3 years ago +1

    Thank´s for the review

  • ThePoolboy789
    ThePoolboy789 3 years ago +4

    AvE made a teardown video on something like this recently

  • Patrick Proba
    Patrick Proba 4 years ago

    How long will it be able to jump start a car after the initial charge? How fast does it discharge by itself? Would it be a good idea to keep it hooked up within your vehicle? Does it have a mechanism which prevents it from constantly charging in such a situation? This product and others similar to this raise a lot of questions...

  • Isaac Gonzalez
    Isaac Gonzalez 4 years ago

    daamn, i want that for christmas

    STEVE ROB REVIEWS 4 years ago


  • BADD400 CB700 drums
    BADD400 CB700 drums 4 years ago

    cool little jump starter

  • DC Rickerson
    DC Rickerson 4 years ago

    A very handy little tool. Thanks for another nice review.

  • Nevercouldfigureitout
    Nevercouldfigureitout 4 years ago

    Really for the money this thing is pretty awesome imo, great review!

  • GigaDonk
    GigaDonk 4 years ago

    Dude that's funny. I just bought the xp10 from antigravity.

  • Levi Padgett
    Levi Padgett 4 years ago

    Frist off I love this channel, but I'm looking for a good but hydraulic crimper tool for my next project.

  • George S
    George S 4 years ago

    Nice job

  • Kimo Kalihi
    Kimo Kalihi 4 years ago

    is there a reason to place the negative cable on the engine vs the negative post on the battery? I've seen people do this before and wondered why. I've jumped a ton of cars and always connected the negative to the negative post. same when charging the battery.

    • BenTheRandomGuy
      BenTheRandomGuy 4 years ago +1

      +Kimo Kalihi the reason why you should not hook up directly to the negative terminal is because you can get a spark when you connect the jumper cables and if the battery has released any flammable fumes they will combust. Now 99% of the time I jump start I always connect right to the negative battery terminal and I have never had a problem.

    • Kimo Kalihi
      Kimo Kalihi 4 years ago

      +DAVID PESKIN hadn't thought of this either. Thanks

    • Kimo Kalihi
      Kimo Kalihi 4 years ago

      +GigaDonk makes sense on someone else's car. On my cars the grounds have all been upgraded and have basically no resistance. Thanks for the reply. Hadn't thought of that.

    • DAVID P
      DAVID P 4 years ago +3

      +Kimo Kalihi To prevent a possible spark near the vents on the battery caps as the connection is made (if its not a sealed battery). A battery can vent hydrogen gas which is highly explosive.

    • GigaDonk
      GigaDonk 4 years ago

      +Kimo Kalihi Because the starter gets ground directly from the block it's better to ground through the block.