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    1. · Registered
      2020 High-Extended AWD EcoBoost Cargo with windows
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      For reasons I won’t get into in detail because I’m typing on a phone; the Bluetti needs solar to be a viable alternative to a piecemeal battery/inverter build out. The parasitic losses from the battery management systems and 50>12 volt converter are material (200Wh/day). It’s a great option for a weekender like me, but if you are running a refrigerator all the time or otherwise need 24/7 12 volt power, solar is absolutely critical to keep the battery charged (unless you drive multiple hours every day).

      If you can turn the battery off and leave it off, this is a moot point, but if you want full time 12v power, go solar.
      If you can send a charge of over 1kW in from the alternator, then the solar shouldn't be an absolute. That ~200Wh would be replaced in less than 15 minutes of idling.

      Clearly, I have no dog in this fight... you do you.

      Power is power. See how much the losses are and the load / demand and accommodate charging appropriately.

      All that said... I realize these things are a bargain compared to assembling one... but there's a reason. They're not a bargain; they're just inferior. Perhaps adequate - and nothing wrong with that for the price. It would cost a bit more and require more effort to assemble a good setup; and these are easy and cheap. You do you!

      @chadman, I think you're good if you max the charging with a half-decent inverter connected to CCP2 and the two-AC adapter setup. Couple hundred bucks for a decent PSW inverter (not an assurance of quality, but perhaps more likely to be decent). I use this one: https://amzn.com/B07CKBJ9KP and they make less expensive but also decent ones like this: https://amzn.com/B07SJYR5G7 that should meet your need.
       
    2. · Registered
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      18 Posts
      Discussion Starter · #9 ·
      If you can send a charge of over 1kW in from the alternator, then the solar shouldn't be an absolute. That ~200Wh would be replaced in less than 15 minutes of idling.

      Clearly, I have no dog in this fight... you do you.

      Power is power. See how much the losses are and the load / demand and accommodate charging appropriately.

      All that said... I realize these things are a bargain compared to assembling one... but there's a reason. They're not a bargain; they're just inferior. Perhaps adequate - and nothing wrong with that for the price. It would cost a bit more and require more effort to assemble a good setup; and these are easy and cheap. You do you!

      @chadman, I think you're good if you max the charging with a half-decent inverter connected to CCP2 and the two-AC adapter setup. Couple hundred bucks for a decent PSW inverter (not an assurance of quality, but perhaps more likely to be decent). I use this one: https://amzn.com/B07CKBJ9KP and they make less expensive but also decent ones like this: https://amzn.com/B07SJYR5G7 that should meet your need.
      Thanks! I'm starting to wrap my head around how this charging is working and now see how I can use the car to do a fast charge via an AC inverter with my 2 AC power bricks. I'm slow and took some time to understand why an AC charge is so much faster than DC for my application. With my limited camping experience I think this setup will work until I learn what's better from some trial/error. The goal is to have a dirt bike van that I can take out for a weekend to camp with my wife.
       
    3. · Registered
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      18 Posts
      Discussion Starter · #11 ·
      If you can send a charge of over 1kW in from the alternator, then the solar shouldn't be an absolute. That ~200Wh would be replaced in less than 15 minutes of idling.

      Clearly, I have no dog in this fight... you do you.

      Power is power. See how much the losses are and the load / demand and accommodate charging appropriately.

      All that said... I realize these things are a bargain compared to assembling one... but there's a reason. They're not a bargain; they're just inferior. Perhaps adequate - and nothing wrong with that for the price. It would cost a bit more and require more effort to assemble a good setup; and these are easy and cheap. You do you!

      @chadman, I think you're good if you max the charging with a half-decent inverter connected to CCP2 and the two-AC adapter setup. Couple hundred bucks for a decent PSW inverter (not an assurance of quality, but perhaps more likely to be decent). I use this one: https://amzn.com/B07CKBJ9KP and they make less expensive but also decent ones like this: https://amzn.com/B07SJYR5G7 that should meet your need.
      So would I need a pure sine wave to power these to power bricks used to charge the batter? I have read that some do not recommend using a modified sine wave for battery chargers. If I get something great for the extra cash, great! If I only need the cheaper one and it will work just as well, sounds like a winner! The Bluetti will be powering everything and the invertor will be used to only charge the Bluetti.
       
    4. · Registered
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      140 Posts
      If you can send a charge of over 1kW in from the alternator, then the solar shouldn't be an absolute. That ~200Wh would be replaced in less than 15 minutes of idling.

      Clearly, I have no dog in this fight... you do you.

      Power is power. See how much the losses are and the load / demand and accommodate charging appropriately.

      All that said... I realize these things are a bargain compared to assembling one... but there's a reason. They're not a bargain; they're just inferior. Perhaps adequate - and nothing wrong with that for the price. It would cost a bit more and require more effort to assemble a good setup; and these are easy and cheap. You do you!

      @chadman, I think you're good if you max the charging with a half-decent inverter connected to CCP2 and the two-AC adapter setup. Couple hundred bucks for a decent PSW inverter (not an assurance of quality, but perhaps more likely to be decent). I use this one: https://amzn.com/B07CKBJ9KP and they make less expensive but also decent ones like this: https://amzn.com/B07SJYR5G7 that should meet your need.
      You're a bit OT, and frankly, don't know the entirety of which you are opining... so I'll be polite and say that my dual degrees in electrical engineering and applied thermodynamics and 20 years in the distributed power generation industry disagree with your assessment of the situation. But you do you.
       
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