Dual Battery/off grid power station. DIY vs Yeti vs Ecoflow : overlanding

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Dual Battery/off grid power station. DIY vs Yeti vs Ecoflow : overlanding

TLDR: for my dual battery/house battery bank, I’m leaning towards the yeti 1500x, a dc to dc charger to charge off my truck’s alternator, and a f

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TLDR: for my dual battery/house battery bank, I’m leaning towards the yeti 1500x, a dc to dc charger to charge off my truck’s alternator, and a few solar panels. my dc to dc options: the yeti vehicle link, redarc, or victron orion. redarc or victron would not pigeonhole me into the yeti lineup so I’m leaning that way. it is also pretty hard to find the yeti vehicle link. Tell me what you think, I am open to outside influence.

Hey y’all, sorry in advance for the enormous brain-dump/reply, but I think it is a good synopsis of my research into off grid power needs. I am about to add house battery capacity to my tacoma. I also tow a tigermoth travel trailer with a 20 amp renogy mppt and a deep cycle agm. But this setup is for the tacoma. i may upgrade the tigermoth separately. I have been researching endlessly for the past couple weeks and this is my current state of thinking:

**Go custom**: Victron or Redarc components and 2 battle born lithium batteries ($1800-$3500 depending on # of batteries and components). Many of you have been discussing this option. its a really good choice.

**Pros**: I’d learn a lot about the system, be able to fix anything that goes wrong, endlessly custom and expandable

**Cons**: labor intensive. expensive compared to bang for your buck battery capacity. system is stuck in the truck.

**Off the shelf power station:** I’ve narrowed it down to Yeti and Ecoflow. Both have good solar charging performance with their integrated mppt’s. both of the following examples are *roughly*equivalent to a 100 amp hour lithium battery with all the inverters and controllers etc in one neat box. One of these would be appealing for the times we want to take the unit out of the truck and station it in our 10×12 canvas tent.

Ecoflow Delta Max ($2k) is cheaper per watt hour and has incredible charging capabilities off AC power. it can charge in 1.5 hours: 1600 watts max off a 120v, 15 amp circuit. thing is, I mostly want to charge off solar and an alternator. my family will rely on free campsites and my goal is to stay off grid. fast charge is a really nice feature to have though. It would be really nice to know if I could charge it with a redarc dc to dc or victron orion. I called customer service and the person that answered the phone started a ticket for me. I suspect that you would need to get a mc4 to Anderson converter, plug that into the dc to dc off the alternator, and plug the other end into the solar input on the ecoflow. I think the downside is that you would need to choose whether you were charging off the alternator or solar. plugging it into the car’s cigarette lighter is useless. it would take 12 hours + for a full charge.

Yeti 1500x ($2k) and higher models have Anderson inputs and outputs as well as all the other inputs and outputs of the ecoflow. the company makes a vehicle link integration cable (https://www.goalzero.com/shop/yeti-accessories/yeti-link-vehicle-integration-kit/) that effectively turns it into a dual house battery, using the alternator (and solar in addition if you hook it up) to charge it. on top of this, there is a gent on YouTube that used an orion dc to dc and the Anderson input to charge off the alternator, so I know that is possible as well. both of those charging solutions can easily send 350 watts into the yeti and charge it up in a few hours. more time if you get the larger battery. Here’s the link for the dude who did it: https://youtu.be/sPYPrUmRi0s

The builder/diy side of me craves the custom setup. it is tried and true and expandable. but for the $, it isn’t as neat of a package and I couldn’t take it out and put it into my huge canvas tent. I’d need really long extension cords

I’m leaning towards the yeti 1500x and a dc to dc charger to charge off my truck’s alternator. my dc to dc options: the yeti vehicle link, redarc, or victron. redarc or victron would not pigeonhole me into the yeti lineup so I’m leaning that way. it is also pretty hard to find the yeti vehicle link.

Thanks for reading my novel,

Kyle



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