2000w Inverter Install

Discussion in 'Prime Accessories and Modifications' started by Insighter, Mar 29, 2018.

  1. Andyprius1

    Andyprius1 Senior Member

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    21D8FB8D-1B01-45C9-A15D-ADC1A791C6BC.jpeg Not relevant but this was Cool at 0730. That is Cool, CA.
     

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  2. Andyprius1

    Andyprius1 Senior Member

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    What does at rest mean?
     
  3. ChapmanF

    ChapmanF Senior Member

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    ¿Cómo?

    Back in December I had to start up a Gen 2 whose 12v battery had an open-circuit voltage too low to start the car (in fact, too low to light any lights, and too low for "smart clamps" on a jump pack to detect that it was a battery).

    Once started, the car charged the battery. Gen 1 and 2 charged at a low rate (I measured no more than 8 amps at first into the completely flat battery, tapering off as it charged) so it took more than eight hours leaving the car in READY to complete the charge. But charge it did.

    With Gen 3, a higher charge rate was introduced (along with a temperature sensor above the battery).
     
  4. George W

    George W Active Member

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    Thank you for providing your measurement experience. I drove the car at intermittent intervals throughout the day, but never measured a voltage increase. The smart charger did the trick.
     
  5. George W

    George W Active Member

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    That is the battery's voltage, measured before it is used.

    During use, the battery will either show its voltage under Load, or the charging voltage that is supplying it.

    After you turn the car off ( charging is no longer being applied), the battery's voltage will decrease ever-so-slightly over a few hours. When the chemistry has resumed ambient temperature of its surroundings, the battery is at rest. That value will show you the true state of charge
     
  6. ChapmanF

    ChapmanF Senior Member

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    Worth noting: the OEM battery has a label on top recommending a charge rate no higher than 5 amps, IIRC.

    If you observe that recommendation when setting up the smart charger, it too will take over nine hours to recharge a severely drained battery. You can reduce the time needed by charging at above the recommended rate, but that's a trade-off with the longevity of the battery.
     
  7. George W

    George W Active Member

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    Since this was a new battery it had set on a warehouse shelf for some time. It wasn't depleted, just slowly discharged. I purchased a smart charger recommended by other forum members, the ctek mus4.3. It took several hours to run the cycle but at the end of it the resting voltage was right at 13.7 volts
     
  8. Insighter

    Insighter Active Member

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    I'm not sure what you're saying about wall outlets. I have no plans of ever connecting my Prius to my home's electrical system. I will simply plug things directly into the inverter using a very heavy-duty extension cord (heavy duty to prevent voltage loss and heat issues).
     
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  9. Insighter

    Insighter Active Member

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    Well, my thoughts are that I don't ever plan to put a high load on this inverter. If I use it, I might as well use a smaller fuse until and unless that becomes a problem (until I draw to much power and burn the fuse). I have higher-capacity fuses, but I doubt I'll ever have a very large load plugged into this inverter.
     
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  10. PriusCamper

    PriusCamper Senior Member

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    Yes, but it's more efficient and will run cooler if you use a 2000 watt inverter and never go over over 1000 watts of actual power used.
     
  11. yoyoman

    yoyoman Member

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    Hey Insighter . Just reading this inverter discussion. Did you end up in a smaller fuse at 100A with this 2000w inverter? Have you try running a long cable to your house and power a full-size refrigerator, modem, lights and laptop? I’m trying to add a 2k or 3k inverter for my 2014 Prius. The 12V battery is located in the truck which mean I can have a very short cable (1/0AWG) from my battery to my inverter. Thanks


    iPhone ?
     
  12. George W

    George W Active Member

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    That is potentially dangerous. 100A fuse says it all. It is there to protect the wire. Do you really want to 'test' a hundred amp fuse by continuously operating near the limit, or over drawing current through it?
     
  13. PriusCamper

    PriusCamper Senior Member

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    You are wrong, you didn't interpret the sentence I wrote correctly... The entire point is that an oversize inverter, will run cooler and more efficiently at 1/2 it's potential output and at less than 1000 watts even a brief spike in amps is going to be nowhere near 100amps.
     
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  14. George W

    George W Active Member

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    You put a lot of faith in the owner of a 2000 watt inverter, to always remember NOT to run 2,000 Watts off of his inverter
     
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