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Inverter system and K9-2 dryer

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  • Inverter system and K9-2 dryer

    I'm wondering if an inverter system can be used to power a K9-2 dryer? We are converting a truck and will be using an inverter system and a generator. We read that the inverter and batteries should run all the tools except the A/C, which we will need the generator for. My husband did a mock up to test before we install it in the truck. After running my K9-2 I noticed a hot smell. Today the fuse box going from the inverter to the batteries started smoking. Needless to say, I turned everything off. I just read an old post from 2017 that said the K9-2 needs to be run off of the generator- is this true?

  • #2
    I run my K9II off my inverter with no issue at all. I now have a 4k inverter but previously had a 3K also with no issues. However, you will need one heck of a battery bank ( I have five 200AH batteries) and make sure that when you run the genny it's charging the bank. Otherwise you will go through batteries quickly.

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    • #3
      Thank you! I currently have a 3000 watt inverter and 4 deep cycle rv batteries. We were thinking of adding 2 more batteries. I would rather do that than use the gen. Because of the noise factor.

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      • #4
        Exactly as Cockerlvr said. We have 6 200AH batteries.

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        • #5
          Thank you!

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          • #6
            Originally posted by cockerlvr View Post
            I run my K9II off my inverter with no issue at all. I now have a 4k inverter but previously had a 3K also with no issues. However, you will need one heck of a battery bank ( I have five 200AH batteries) and make sure that when you run the genny it's charging the bank. Otherwise you will go through batteries quickly.
            Whats the brand of your inverter you use? I need to upgrade what ever came with my van

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            • #7
              Pay close attention to your fuse specs. They work like this. As power passes through the fuse it's temperature increases accordingly. The material is sized to melt at a specific temperature. Depending on the manufacturer and specifics of performance of any fuse they all come with charts or make charts available to convey these characteristics to the designer or end user. Your not supposed to run them up to the limit or so close that they become a power sucking heater. If you increase your power draw by a lot from what a system was designed to operate at the fuse will most likely be pushed to its upper limits and become a drain of your batteries stored power. Changing to higher rated fuse is only safe if the rest of the system can handle the loads. Of the problem of drying is something other than the equipment changing the equipment doesn't solve the problem.

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              • #8
                Great info Doug.

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                • #9
                  I know this is an old thread but I’m hoping that this is seen. About the k911 dryer working on inverter only system… someone mentioned that a big battery bank would be needed and also a generator running that’s charging it as you go… could it be done without a generator if you have an charger inverter combo Or what if it’s just the inverter and you add an on board rv charger like the power max i see so many mobile trucks have. Wouldn’t that be the same thing as having the generator to charge batteries as you go ?

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                  • #10
                    I am going to guess that you still have a very limited time and what if you have more appointments coming up? Genie.

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                    • #11
                      Originally posted by kim818 View Post
                      I know this is an old thread but I’m hoping that this is seen. About the k911 dryer working on inverter only system… someone mentioned that a big battery bank would be needed and also a generator running that’s charging it as you go… could it be done without a generator if you have an charger inverter combo Or what if it’s just the inverter and you add an on board rv charger like the power max i see so many mobile trucks have. Wouldn’t that be the same thing as having the generator to charge batteries as you go ?
                      The charger doesn't just get it's power from air, it needs to be plugged into juice. I do and you can charge your batteries from your engines alternator. You still need a big battery bank. At least 1000AH.

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                      • #12
                        I had a 1000 amp hour bank and our k92 dryer made it to dog 4 maybe before kaput. Large dog maybe 2. A double motor HV is a bad match up for a battery system. Now if you used say a CC blue box dryer you may get your day done. In a nutshell if you groom large breed dogs then forget using batteries. If you only groom smalls and your drying is 10 minutes per then yes you can get away with batteries. But if you need AC then you are forced to use a gas generator. No way no how can a battery bank handle a AC for hours and initial starting amps will wreck your battery bank

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                        • #13

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                          • #14
                            Originally posted by IrishSetterTom View Post
                            I had a 1000 amp hour bank and our k92 dryer made it to dog 4 maybe before kaput. Large dog maybe 2. A double motor HV is a bad match up for a battery system. Now if you used say a CC blue box dryer you may get your day done. In a nutshell if you groom large breed dogs then forget using batteries. If you only groom smalls and your drying is 10 minutes per then yes you can get away with batteries. But if you need AC then you are forced to use a gas generator. No way no how can a battery bank handle a AC for hours and initial starting amps will wreck your battery bank
                            I don't think you've ever said if your batteries charged while you drove?

                            I've been working with inverter with a k9II for almost nine years now. Yes, I mostly do small dogs, but can do 6-7 a day and not have a problem and also run a stand dryer that actually draws more power.

                            No, I don't run AC off of it.

                            You've consistently said it can't be done, yet, I've done it for a lot of years now.

                            There is a guy on the DIY mobile facebook group that runs everything including AC on two 3000 watt inverters and eight battery 6 volt system. He says that it's better than using twelve. IDK but he does it.

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                            • #15
                              I saw an ad that said their battery system could run dryer and AC all day, and I knew right away I don't trust that seller.

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